./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb384ff5c9201b9f90543357d3375f0a0ac9cc5fac01729f538d89799a1d7226 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:22:45,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:22:45,759 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:22:45,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:22:45,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:22:45,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:22:45,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:22:45,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:22:45,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:22:45,796 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:22:45,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:22:45,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:22:45,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:22:45,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:22:45,799 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:22:45,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:22:45,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:22:45,801 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:22:45,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:22:45,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:22:45,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:22:45,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:22:45,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:22:45,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:22:45,805 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:22:45,805 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:22:45,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:22:45,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:22:45,807 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:22:45,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:22:45,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:22:45,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:22:45,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:22:45,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:22:45,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:22:45,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:22:45,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:22:45,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:22:45,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:22:45,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:22:45,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:22:45,811 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:22:45,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:22:45,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:22:45,812 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb384ff5c9201b9f90543357d3375f0a0ac9cc5fac01729f538d89799a1d7226 [2023-11-29 00:22:46,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:22:46,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:22:46,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:22:46,117 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:22:46,118 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:22:46,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2023-11-29 00:22:49,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:22:49,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:22:49,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound20.c [2023-11-29 00:22:49,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/data/5f6152948/61e2c38bc63b4623b01079191328c93a/FLAGed452de54 [2023-11-29 00:22:49,568 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/data/5f6152948/61e2c38bc63b4623b01079191328c93a [2023-11-29 00:22:49,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:22:49,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:22:49,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:22:49,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:22:49,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:22:49,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c68b47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49, skipping insertion in model container [2023-11-29 00:22:49,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:22:49,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:22:49,745 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:22:49,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:22:49,776 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:22:49,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49 WrapperNode [2023-11-29 00:22:49,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:22:49,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:22:49,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:22:49,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:22:49,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,817 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2023-11-29 00:22:49,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:22:49,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:22:49,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:22:49,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:22:49,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,845 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 00:22:49,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:22:49,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:22:49,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:22:49,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:22:49,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (1/1) ... [2023-11-29 00:22:49,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:22:49,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:49,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:22:49,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:22:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:22:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 00:22:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 00:22:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:22:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:22:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:22:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:22:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:22:49,980 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:22:49,981 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:22:50,327 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:22:50,353 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:22:50,353 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:22:50,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:22:50 BoogieIcfgContainer [2023-11-29 00:22:50,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:22:50,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:22:50,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:22:50,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:22:50,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:22:49" (1/3) ... [2023-11-29 00:22:50,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368250a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:22:50, skipping insertion in model container [2023-11-29 00:22:50,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:22:49" (2/3) ... [2023-11-29 00:22:50,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368250a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:22:50, skipping insertion in model container [2023-11-29 00:22:50,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:22:50" (3/3) ... [2023-11-29 00:22:50,363 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound20.c [2023-11-29 00:22:50,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:22:50,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-29 00:22:50,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:22:50,428 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26d05eb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:22:50,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-29 00:22:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:22:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 00:22:50,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:50,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:50,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:50,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1031300897, now seen corresponding path program 1 times [2023-11-29 00:22:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:50,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022887961] [2023-11-29 00:22:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:50,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:22:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 00:22:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:50,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:50,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022887961] [2023-11-29 00:22:50,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022887961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:50,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:50,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:22:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206081939] [2023-11-29 00:22:50,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:50,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:22:50,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:22:50,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:22:50,624 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:50,653 INFO L93 Difference]: Finished difference Result 270 states and 287 transitions. [2023-11-29 00:22:50,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:22:50,656 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 00:22:50,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:50,664 INFO L225 Difference]: With dead ends: 270 [2023-11-29 00:22:50,664 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 00:22:50,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:22:50,671 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:50,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:22:50,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 00:22:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-11-29 00:22:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 127 states have internal predecessors, (129), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:22:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2023-11-29 00:22:50,711 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 13 [2023-11-29 00:22:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:50,712 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2023-11-29 00:22:50,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2023-11-29 00:22:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 00:22:50,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:50,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:50,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:22:50,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:50,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash 638333469, now seen corresponding path program 1 times [2023-11-29 00:22:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409590387] [2023-11-29 00:22:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:50,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:22:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 00:22:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:50,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:50,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409590387] [2023-11-29 00:22:50,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409590387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:50,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:50,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:22:50,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816376919] [2023-11-29 00:22:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:50,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:22:50,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:22:50,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:50,801 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:50,902 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2023-11-29 00:22:50,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:22:50,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 00:22:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:50,904 INFO L225 Difference]: With dead ends: 133 [2023-11-29 00:22:50,905 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 00:22:50,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:50,907 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:50,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 81 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 00:22:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-29 00:22:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 70 states have (on average 1.7857142857142858) internal successors, (125), 123 states have internal predecessors, (125), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:22:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2023-11-29 00:22:50,920 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 13 [2023-11-29 00:22:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:50,921 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2023-11-29 00:22:50,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2023-11-29 00:22:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 00:22:50,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:50,922 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:50,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:22:50,923 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:50,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:50,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1686498902, now seen corresponding path program 1 times [2023-11-29 00:22:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:50,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131163278] [2023-11-29 00:22:50,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:50,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:22:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 00:22:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:50,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:50,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131163278] [2023-11-29 00:22:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131163278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:50,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:50,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:22:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362712447] [2023-11-29 00:22:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:50,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:22:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:50,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:22:50,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:50,981 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:51,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:51,117 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2023-11-29 00:22:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:22:51,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 00:22:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:51,119 INFO L225 Difference]: With dead ends: 129 [2023-11-29 00:22:51,119 INFO L226 Difference]: Without dead ends: 125 [2023-11-29 00:22:51,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:51,121 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 112 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:51,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 81 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:51,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-29 00:22:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-11-29 00:22:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 119 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:22:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2023-11-29 00:22:51,132 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 14 [2023-11-29 00:22:51,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:51,133 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2023-11-29 00:22:51,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:51,133 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2023-11-29 00:22:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 00:22:51,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:51,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:51,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:22:51,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:51,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:51,135 INFO L85 PathProgramCache]: Analyzing trace with hash -741858369, now seen corresponding path program 1 times [2023-11-29 00:22:51,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:51,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686165074] [2023-11-29 00:22:51,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:51,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:22:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 00:22:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:51,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:51,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686165074] [2023-11-29 00:22:51,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686165074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:51,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:51,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:51,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542803939] [2023-11-29 00:22:51,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:51,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:51,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:51,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:51,208 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:51,331 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2023-11-29 00:22:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:22:51,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-29 00:22:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:51,333 INFO L225 Difference]: With dead ends: 125 [2023-11-29 00:22:51,333 INFO L226 Difference]: Without dead ends: 122 [2023-11-29 00:22:51,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:51,335 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 219 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:51,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 75 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:51,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-29 00:22:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-29 00:22:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 116 states have internal predecessors, (118), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:22:51,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2023-11-29 00:22:51,346 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 15 [2023-11-29 00:22:51,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:51,347 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2023-11-29 00:22:51,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2023-11-29 00:22:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 00:22:51,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:51,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:51,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:22:51,348 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:51,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:51,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1522772916, now seen corresponding path program 1 times [2023-11-29 00:22:51,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:51,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247246853] [2023-11-29 00:22:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:51,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:22:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 00:22:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:51,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:51,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247246853] [2023-11-29 00:22:51,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247246853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:51,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:51,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887942980] [2023-11-29 00:22:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:51,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:51,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:51,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:51,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:51,416 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:51,525 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2023-11-29 00:22:51,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:22:51,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-11-29 00:22:51,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:51,526 INFO L225 Difference]: With dead ends: 122 [2023-11-29 00:22:51,527 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 00:22:51,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:51,528 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 212 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:51,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 75 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:51,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 00:22:51,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-29 00:22:51,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 70 states have (on average 1.6428571428571428) internal successors, (115), 113 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:22:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2023-11-29 00:22:51,539 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 16 [2023-11-29 00:22:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:51,539 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2023-11-29 00:22:51,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2023-11-29 00:22:51,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 00:22:51,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:51,540 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:51,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:22:51,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:51,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1199077326, now seen corresponding path program 1 times [2023-11-29 00:22:51,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:51,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968367142] [2023-11-29 00:22:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:51,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:51,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:51,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639666698] [2023-11-29 00:22:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:51,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:51,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:51,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:51,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:22:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:51,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:22:51,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:51,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:51,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:51,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968367142] [2023-11-29 00:22:51,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:51,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639666698] [2023-11-29 00:22:51,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639666698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:51,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:51,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:22:51,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323050855] [2023-11-29 00:22:51,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:51,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:22:51,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:51,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:22:51,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:51,640 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:51,692 INFO L93 Difference]: Finished difference Result 222 states and 226 transitions. [2023-11-29 00:22:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:22:51,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 00:22:51,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:51,695 INFO L225 Difference]: With dead ends: 222 [2023-11-29 00:22:51,695 INFO L226 Difference]: Without dead ends: 216 [2023-11-29 00:22:51,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:51,696 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 95 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:51,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 214 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:22:51,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-29 00:22:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 144. [2023-11-29 00:22:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.6382978723404256) internal successors, (154), 137 states have internal predecessors, (154), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:22:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 162 transitions. [2023-11-29 00:22:51,714 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 162 transitions. Word has length 18 [2023-11-29 00:22:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:51,714 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 162 transitions. [2023-11-29 00:22:51,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 162 transitions. [2023-11-29 00:22:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 00:22:51,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:51,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:51,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:22:51,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:51,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:51,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1262076752, now seen corresponding path program 1 times [2023-11-29 00:22:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:51,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244394663] [2023-11-29 00:22:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:51,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:51,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:51,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151768427] [2023-11-29 00:22:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:51,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:51,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:51,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:51,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:22:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:52,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:22:52,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:52,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:52,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:52,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244394663] [2023-11-29 00:22:52,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:52,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151768427] [2023-11-29 00:22:52,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151768427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:52,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:52,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:22:52,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665624026] [2023-11-29 00:22:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:52,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:22:52,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:52,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:22:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:52,023 INFO L87 Difference]: Start difference. First operand 144 states and 162 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:52,082 INFO L93 Difference]: Finished difference Result 247 states and 267 transitions. [2023-11-29 00:22:52,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:22:52,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 00:22:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:52,085 INFO L225 Difference]: With dead ends: 247 [2023-11-29 00:22:52,085 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 00:22:52,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:22:52,087 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 93 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:52,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:22:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 00:22:52,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2023-11-29 00:22:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.647887323943662) internal successors, (234), 185 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:52,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 244 transitions. [2023-11-29 00:22:52,105 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 244 transitions. Word has length 20 [2023-11-29 00:22:52,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:52,106 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 244 transitions. [2023-11-29 00:22:52,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 244 transitions. [2023-11-29 00:22:52,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 00:22:52,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:52,107 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:52,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:22:52,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:52,312 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:52,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:52,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1674983122, now seen corresponding path program 1 times [2023-11-29 00:22:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:52,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579784934] [2023-11-29 00:22:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:52,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:52,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:52,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961082541] [2023-11-29 00:22:52,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:52,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:52,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:52,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:52,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:22:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:52,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:22:52,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:52,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:52,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:52,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:52,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579784934] [2023-11-29 00:22:52,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:52,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961082541] [2023-11-29 00:22:52,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961082541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:52,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:52,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830497319] [2023-11-29 00:22:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:52,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:52,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:52,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:52,421 INFO L87 Difference]: Start difference. First operand 193 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:52,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:52,623 INFO L93 Difference]: Finished difference Result 272 states and 315 transitions. [2023-11-29 00:22:52,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:22:52,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 00:22:52,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:52,627 INFO L225 Difference]: With dead ends: 272 [2023-11-29 00:22:52,627 INFO L226 Difference]: Without dead ends: 270 [2023-11-29 00:22:52,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:52,628 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:52,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 250 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:22:52,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-29 00:22:52,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 194. [2023-11-29 00:22:52,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 143 states have (on average 1.6363636363636365) internal successors, (234), 186 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 244 transitions. [2023-11-29 00:22:52,662 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 244 transitions. Word has length 22 [2023-11-29 00:22:52,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:52,662 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 244 transitions. [2023-11-29 00:22:52,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 244 transitions. [2023-11-29 00:22:52,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 00:22:52,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:52,664 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:52,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:22:52,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:52,866 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:52,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:52,867 INFO L85 PathProgramCache]: Analyzing trace with hash 384869294, now seen corresponding path program 1 times [2023-11-29 00:22:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:52,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905592866] [2023-11-29 00:22:52,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:52,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:52,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:52,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117257273] [2023-11-29 00:22:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:52,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:52,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:52,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:22:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:52,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:22:52,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:52,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:52,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:52,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905592866] [2023-11-29 00:22:52,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:52,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117257273] [2023-11-29 00:22:52,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117257273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:52,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:52,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560667227] [2023-11-29 00:22:52,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:52,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:52,974 INFO L87 Difference]: Start difference. First operand 194 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:53,161 INFO L93 Difference]: Finished difference Result 270 states and 313 transitions. [2023-11-29 00:22:53,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:22:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-29 00:22:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:53,164 INFO L225 Difference]: With dead ends: 270 [2023-11-29 00:22:53,164 INFO L226 Difference]: Without dead ends: 268 [2023-11-29 00:22:53,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:53,166 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:53,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 252 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:22:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-29 00:22:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 195. [2023-11-29 00:22:53,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.625) internal successors, (234), 187 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 244 transitions. [2023-11-29 00:22:53,182 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 244 transitions. Word has length 23 [2023-11-29 00:22:53,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:53,182 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 244 transitions. [2023-11-29 00:22:53,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 244 transitions. [2023-11-29 00:22:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 00:22:53,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:53,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:53,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:22:53,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:53,388 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:53,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:53,389 INFO L85 PathProgramCache]: Analyzing trace with hash -953953708, now seen corresponding path program 1 times [2023-11-29 00:22:53,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:53,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350470646] [2023-11-29 00:22:53,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:53,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:53,403 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:53,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354152824] [2023-11-29 00:22:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:53,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:53,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:22:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:53,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:22:53,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:53,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:53,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:53,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350470646] [2023-11-29 00:22:53,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:53,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354152824] [2023-11-29 00:22:53,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354152824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:53,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:53,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:53,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408141681] [2023-11-29 00:22:53,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:53,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:53,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:53,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:53,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:53,495 INFO L87 Difference]: Start difference. First operand 195 states and 244 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:53,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:53,663 INFO L93 Difference]: Finished difference Result 257 states and 273 transitions. [2023-11-29 00:22:53,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:22:53,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-29 00:22:53,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:53,666 INFO L225 Difference]: With dead ends: 257 [2023-11-29 00:22:53,666 INFO L226 Difference]: Without dead ends: 255 [2023-11-29 00:22:53,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:53,667 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 194 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:53,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-29 00:22:53,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 195. [2023-11-29 00:22:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.6041666666666667) internal successors, (231), 187 states have internal predecessors, (231), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2023-11-29 00:22:53,680 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 24 [2023-11-29 00:22:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:53,680 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2023-11-29 00:22:53,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2023-11-29 00:22:53,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 00:22:53,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:53,682 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:53,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:22:53,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 00:22:53,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:53,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash 492206192, now seen corresponding path program 1 times [2023-11-29 00:22:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:53,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325016953] [2023-11-29 00:22:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:53,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:53,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144569981] [2023-11-29 00:22:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:53,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:53,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:53,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:53,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:22:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:53,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:22:53,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:53,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:53,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:53,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325016953] [2023-11-29 00:22:53,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:53,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144569981] [2023-11-29 00:22:53,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144569981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:53,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:53,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:53,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684534573] [2023-11-29 00:22:53,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:53,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:53,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:53,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:53,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:53,979 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:54,140 INFO L93 Difference]: Finished difference Result 255 states and 270 transitions. [2023-11-29 00:22:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:22:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-29 00:22:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:54,142 INFO L225 Difference]: With dead ends: 255 [2023-11-29 00:22:54,143 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 00:22:54,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:54,144 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 189 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:54,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 257 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:54,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 00:22:54,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 195. [2023-11-29 00:22:54,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.5833333333333333) internal successors, (228), 187 states have internal predecessors, (228), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 238 transitions. [2023-11-29 00:22:54,156 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 238 transitions. Word has length 25 [2023-11-29 00:22:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:54,156 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 238 transitions. [2023-11-29 00:22:54,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:54,156 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 238 transitions. [2023-11-29 00:22:54,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 00:22:54,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:54,157 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:54,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:22:54,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:22:54,360 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:54,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:54,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1921477162, now seen corresponding path program 1 times [2023-11-29 00:22:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368082615] [2023-11-29 00:22:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:54,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:54,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749078809] [2023-11-29 00:22:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:54,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:54,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:54,370 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:54,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:22:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:54,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:22:54,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:54,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:54,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:54,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:54,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368082615] [2023-11-29 00:22:54,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:54,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749078809] [2023-11-29 00:22:54,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749078809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:54,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:54,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:22:54,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105732864] [2023-11-29 00:22:54,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:54,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:22:54,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:54,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:22:54,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:54,471 INFO L87 Difference]: Start difference. First operand 195 states and 238 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:54,652 INFO L93 Difference]: Finished difference Result 264 states and 303 transitions. [2023-11-29 00:22:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:22:54,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-29 00:22:54,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:54,655 INFO L225 Difference]: With dead ends: 264 [2023-11-29 00:22:54,655 INFO L226 Difference]: Without dead ends: 262 [2023-11-29 00:22:54,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:22:54,656 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 233 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:54,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 253 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:54,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-29 00:22:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 198. [2023-11-29 00:22:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.564625850340136) internal successors, (230), 190 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 240 transitions. [2023-11-29 00:22:54,669 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 240 transitions. Word has length 26 [2023-11-29 00:22:54,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:54,669 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 240 transitions. [2023-11-29 00:22:54,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 240 transitions. [2023-11-29 00:22:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 00:22:54,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:54,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:54,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 00:22:54,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 00:22:54,876 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:54,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash 563750194, now seen corresponding path program 1 times [2023-11-29 00:22:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:54,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066927509] [2023-11-29 00:22:54,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:54,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:54,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:54,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003715182] [2023-11-29 00:22:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:54,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:54,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:54,904 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:54,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:22:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:54,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:22:54,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:55,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:55,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:55,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066927509] [2023-11-29 00:22:55,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003715182] [2023-11-29 00:22:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003715182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:55,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:22:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181814405] [2023-11-29 00:22:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:55,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:22:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:22:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:22:55,041 INFO L87 Difference]: Start difference. First operand 198 states and 240 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:55,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:55,302 INFO L93 Difference]: Finished difference Result 266 states and 301 transitions. [2023-11-29 00:22:55,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:22:55,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 00:22:55,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:55,305 INFO L225 Difference]: With dead ends: 266 [2023-11-29 00:22:55,305 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 00:22:55,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:22:55,306 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 238 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:55,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 284 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:22:55,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 00:22:55,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 199. [2023-11-29 00:22:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 148 states have (on average 1.554054054054054) internal successors, (230), 191 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2023-11-29 00:22:55,317 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 27 [2023-11-29 00:22:55,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:55,318 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2023-11-29 00:22:55,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2023-11-29 00:22:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 00:22:55,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:55,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:55,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:22:55,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 00:22:55,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:55,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:55,524 INFO L85 PathProgramCache]: Analyzing trace with hash 296386904, now seen corresponding path program 1 times [2023-11-29 00:22:55,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:55,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361896497] [2023-11-29 00:22:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:55,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:55,533 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:55,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717754475] [2023-11-29 00:22:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:55,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:55,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:55,535 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:55,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:22:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:55,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:22:55,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:22:55,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:22:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:22:56,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361896497] [2023-11-29 00:22:56,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717754475] [2023-11-29 00:22:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717754475] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:22:56,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:22:56,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 00:22:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119433248] [2023-11-29 00:22:56,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:22:56,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:22:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:22:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:22:56,083 INFO L87 Difference]: Start difference. First operand 199 states and 240 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:22:56,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:56,893 INFO L93 Difference]: Finished difference Result 264 states and 299 transitions. [2023-11-29 00:22:56,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:22:56,894 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-29 00:22:56,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:56,896 INFO L225 Difference]: With dead ends: 264 [2023-11-29 00:22:56,896 INFO L226 Difference]: Without dead ends: 233 [2023-11-29 00:22:56,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:22:56,898 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 417 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:56,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 406 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:22:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-29 00:22:56,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 189. [2023-11-29 00:22:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 181 states have internal predecessors, (218), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 228 transitions. [2023-11-29 00:22:56,917 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 228 transitions. Word has length 28 [2023-11-29 00:22:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:56,917 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 228 transitions. [2023-11-29 00:22:56,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 13 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:22:56,918 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 228 transitions. [2023-11-29 00:22:56,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 00:22:56,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:56,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:56,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 00:22:57,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 00:22:57,120 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:57,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:57,121 INFO L85 PathProgramCache]: Analyzing trace with hash 598059508, now seen corresponding path program 1 times [2023-11-29 00:22:57,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:57,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230196517] [2023-11-29 00:22:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:57,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:57,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:57,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605601312] [2023-11-29 00:22:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:57,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:57,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:57,140 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:22:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:57,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:22:57,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:22:57,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:22:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:22:57,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230196517] [2023-11-29 00:22:57,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605601312] [2023-11-29 00:22:57,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605601312] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:22:57,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:22:57,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 00:22:57,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239285956] [2023-11-29 00:22:57,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:22:57,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:22:57,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:57,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:22:57,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:22:57,453 INFO L87 Difference]: Start difference. First operand 189 states and 228 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:22:57,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:57,664 INFO L93 Difference]: Finished difference Result 189 states and 228 transitions. [2023-11-29 00:22:57,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:22:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2023-11-29 00:22:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:57,667 INFO L225 Difference]: With dead ends: 189 [2023-11-29 00:22:57,667 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 00:22:57,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:22:57,669 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:57,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 263 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:22:57,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 00:22:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-11-29 00:22:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 138 states have (on average 1.5434782608695652) internal successors, (213), 179 states have internal predecessors, (213), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 223 transitions. [2023-11-29 00:22:57,681 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 223 transitions. Word has length 29 [2023-11-29 00:22:57,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:57,681 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 223 transitions. [2023-11-29 00:22:57,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:22:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 223 transitions. [2023-11-29 00:22:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 00:22:57,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:57,682 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:57,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 00:22:57,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:22:57,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:57,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1266536540, now seen corresponding path program 1 times [2023-11-29 00:22:57,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:57,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762013734] [2023-11-29 00:22:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:57,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:57,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:57,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186578606] [2023-11-29 00:22:57,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:57,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:57,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:57,896 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:57,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:22:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:57,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:22:57,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:22:58,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:58,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:58,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762013734] [2023-11-29 00:22:58,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:58,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186578606] [2023-11-29 00:22:58,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186578606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:58,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:58,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:22:58,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847013923] [2023-11-29 00:22:58,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:58,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:22:58,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:58,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:22:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:22:58,091 INFO L87 Difference]: Start difference. First operand 187 states and 223 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:58,317 INFO L93 Difference]: Finished difference Result 187 states and 223 transitions. [2023-11-29 00:22:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:22:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-29 00:22:58,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:58,320 INFO L225 Difference]: With dead ends: 187 [2023-11-29 00:22:58,320 INFO L226 Difference]: Without dead ends: 185 [2023-11-29 00:22:58,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:22:58,321 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 144 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:58,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 190 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:22:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-29 00:22:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-29 00:22:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.5072463768115942) internal successors, (208), 177 states have internal predecessors, (208), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 218 transitions. [2023-11-29 00:22:58,336 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 218 transitions. Word has length 32 [2023-11-29 00:22:58,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:58,336 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 218 transitions. [2023-11-29 00:22:58,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:58,337 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 218 transitions. [2023-11-29 00:22:58,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 00:22:58,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:58,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:58,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 00:22:58,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 00:22:58,546 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:58,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:58,546 INFO L85 PathProgramCache]: Analyzing trace with hash 607927160, now seen corresponding path program 1 times [2023-11-29 00:22:58,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:58,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748999471] [2023-11-29 00:22:58,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:58,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:58,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:58,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265441935] [2023-11-29 00:22:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:58,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:58,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:58,555 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:58,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:22:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:58,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:22:58,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:58,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748999471] [2023-11-29 00:22:58,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:58,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265441935] [2023-11-29 00:22:58,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265441935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:58,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:22:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155792934] [2023-11-29 00:22:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:58,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:22:58,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:22:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:22:58,987 INFO L87 Difference]: Start difference. First operand 185 states and 218 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:59,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:59,473 INFO L93 Difference]: Finished difference Result 227 states and 258 transitions. [2023-11-29 00:22:59,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:22:59,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-29 00:22:59,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:59,475 INFO L225 Difference]: With dead ends: 227 [2023-11-29 00:22:59,475 INFO L226 Difference]: Without dead ends: 226 [2023-11-29 00:22:59,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:22:59,476 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 246 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:59,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 232 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:22:59,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-29 00:22:59,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 185. [2023-11-29 00:22:59,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.5) internal successors, (207), 177 states have internal predecessors, (207), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:59,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2023-11-29 00:22:59,487 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 33 [2023-11-29 00:22:59,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:59,487 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2023-11-29 00:22:59,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:22:59,488 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2023-11-29 00:22:59,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 00:22:59,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:59,489 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:59,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 00:22:59,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 00:22:59,690 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:22:59,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:59,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1665872862, now seen corresponding path program 1 times [2023-11-29 00:22:59,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:59,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787297030] [2023-11-29 00:22:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:59,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:59,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:59,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151141665] [2023-11-29 00:22:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:59,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:59,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:59,705 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:59,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:22:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:59,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:22:59,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:22:59,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:59,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:59,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787297030] [2023-11-29 00:22:59,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:59,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151141665] [2023-11-29 00:22:59,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151141665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:59,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:59,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:22:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112233492] [2023-11-29 00:22:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:59,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:22:59,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:59,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:22:59,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:59,835 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:59,979 INFO L93 Difference]: Finished difference Result 202 states and 233 transitions. [2023-11-29 00:22:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:22:59,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 00:22:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:59,981 INFO L225 Difference]: With dead ends: 202 [2023-11-29 00:22:59,981 INFO L226 Difference]: Without dead ends: 201 [2023-11-29 00:22:59,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:22:59,982 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 36 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:59,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 140 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-29 00:22:59,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 185. [2023-11-29 00:22:59,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.4927536231884058) internal successors, (206), 177 states have internal predecessors, (206), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:22:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2023-11-29 00:22:59,993 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 34 [2023-11-29 00:22:59,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:59,994 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2023-11-29 00:22:59,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:22:59,994 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2023-11-29 00:22:59,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 00:22:59,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:59,995 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:00,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 00:23:00,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 00:23:00,198 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:00,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:00,199 INFO L85 PathProgramCache]: Analyzing trace with hash 102451258, now seen corresponding path program 1 times [2023-11-29 00:23:00,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:00,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006795881] [2023-11-29 00:23:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:00,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:00,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:00,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248579248] [2023-11-29 00:23:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:00,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:00,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:00,210 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:00,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 00:23:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:00,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:23:00,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:00,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:00,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:00,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006795881] [2023-11-29 00:23:00,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:00,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248579248] [2023-11-29 00:23:00,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248579248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:00,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:00,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:00,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110645157] [2023-11-29 00:23:00,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:00,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:00,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:00,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:00,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:00,329 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:23:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:00,540 INFO L93 Difference]: Finished difference Result 201 states and 232 transitions. [2023-11-29 00:23:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2023-11-29 00:23:00,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:00,542 INFO L225 Difference]: With dead ends: 201 [2023-11-29 00:23:00,542 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 00:23:00,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:00,543 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 16 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:00,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 170 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 00:23:00,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 185. [2023-11-29 00:23:00,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.4855072463768115) internal successors, (205), 177 states have internal predecessors, (205), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:00,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 215 transitions. [2023-11-29 00:23:00,553 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 215 transitions. Word has length 35 [2023-11-29 00:23:00,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:00,553 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 215 transitions. [2023-11-29 00:23:00,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:23:00,553 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 215 transitions. [2023-11-29 00:23:00,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 00:23:00,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:00,554 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:00,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 00:23:00,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:00,755 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:00,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:00,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1145505025, now seen corresponding path program 1 times [2023-11-29 00:23:00,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:00,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135334970] [2023-11-29 00:23:00,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:00,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:00,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:00,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376773684] [2023-11-29 00:23:00,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:00,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:00,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:00,767 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:00,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 00:23:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:00,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:23:00,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:00,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:00,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135334970] [2023-11-29 00:23:00,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376773684] [2023-11-29 00:23:00,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376773684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:00,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:00,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:00,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123152147] [2023-11-29 00:23:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:00,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:00,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:00,980 INFO L87 Difference]: Start difference. First operand 185 states and 215 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:01,140 INFO L93 Difference]: Finished difference Result 200 states and 231 transitions. [2023-11-29 00:23:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:23:01,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2023-11-29 00:23:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:01,143 INFO L225 Difference]: With dead ends: 200 [2023-11-29 00:23:01,143 INFO L226 Difference]: Without dead ends: 198 [2023-11-29 00:23:01,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:01,144 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 277 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:01,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 116 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-29 00:23:01,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2023-11-29 00:23:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 147 states have (on average 1.4625850340136055) internal successors, (215), 186 states have internal predecessors, (215), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2023-11-29 00:23:01,156 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 45 [2023-11-29 00:23:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:01,156 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2023-11-29 00:23:01,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:01,156 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2023-11-29 00:23:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 00:23:01,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:01,157 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:01,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:01,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:01,358 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:01,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:01,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1150917302, now seen corresponding path program 1 times [2023-11-29 00:23:01,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:01,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659899753] [2023-11-29 00:23:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:01,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:01,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:01,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277187982] [2023-11-29 00:23:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:01,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:01,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:01,367 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:01,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 00:23:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:01,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:23:01,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:01,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:01,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:01,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659899753] [2023-11-29 00:23:01,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:01,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277187982] [2023-11-29 00:23:01,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277187982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:01,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:01,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:01,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376633096] [2023-11-29 00:23:01,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:01,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:01,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:01,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:01,516 INFO L87 Difference]: Start difference. First operand 194 states and 225 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:01,713 INFO L93 Difference]: Finished difference Result 198 states and 229 transitions. [2023-11-29 00:23:01,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:23:01,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2023-11-29 00:23:01,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:01,715 INFO L225 Difference]: With dead ends: 198 [2023-11-29 00:23:01,715 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 00:23:01,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:23:01,716 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 140 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:01,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 183 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:01,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 00:23:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2023-11-29 00:23:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 148 states have (on average 1.4594594594594594) internal successors, (216), 187 states have internal predecessors, (216), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2023-11-29 00:23:01,730 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 46 [2023-11-29 00:23:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:01,730 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2023-11-29 00:23:01,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2023-11-29 00:23:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 00:23:01,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:01,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:01,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 00:23:01,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:01,932 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:01,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:01,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2070039148, now seen corresponding path program 1 times [2023-11-29 00:23:01,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:01,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897356241] [2023-11-29 00:23:01,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:01,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:01,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:01,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098159016] [2023-11-29 00:23:01,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:01,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:01,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:01,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:01,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 00:23:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:01,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:23:01,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:02,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:02,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897356241] [2023-11-29 00:23:02,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098159016] [2023-11-29 00:23:02,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098159016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:02,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:02,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:02,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804187504] [2023-11-29 00:23:02,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:02,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:02,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:02,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:02,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:02,037 INFO L87 Difference]: Start difference. First operand 195 states and 226 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:02,075 INFO L93 Difference]: Finished difference Result 195 states and 226 transitions. [2023-11-29 00:23:02,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:02,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-11-29 00:23:02,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:02,077 INFO L225 Difference]: With dead ends: 195 [2023-11-29 00:23:02,077 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 00:23:02,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:02,079 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 74 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:02,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 209 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 00:23:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-29 00:23:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 148 states have (on average 1.445945945945946) internal successors, (214), 186 states have internal predecessors, (214), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:02,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 224 transitions. [2023-11-29 00:23:02,090 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 224 transitions. Word has length 48 [2023-11-29 00:23:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:02,090 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 224 transitions. [2023-11-29 00:23:02,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:02,091 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 224 transitions. [2023-11-29 00:23:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 00:23:02,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:02,091 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:02,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:02,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:02,292 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:02,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1643991946, now seen corresponding path program 1 times [2023-11-29 00:23:02,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:02,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660554194] [2023-11-29 00:23:02,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:02,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:02,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:02,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084578911] [2023-11-29 00:23:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:02,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:02,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:02,300 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:02,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 00:23:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:02,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:23:02,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:02,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:02,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:02,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660554194] [2023-11-29 00:23:02,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:02,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084578911] [2023-11-29 00:23:02,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084578911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:02,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:02,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:02,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702964449] [2023-11-29 00:23:02,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:02,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:02,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:02,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:02,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:02,582 INFO L87 Difference]: Start difference. First operand 194 states and 224 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:02,721 INFO L93 Difference]: Finished difference Result 196 states and 226 transitions. [2023-11-29 00:23:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:23:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-11-29 00:23:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:02,723 INFO L225 Difference]: With dead ends: 196 [2023-11-29 00:23:02,723 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 00:23:02,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:02,724 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:02,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 113 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 00:23:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-11-29 00:23:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 149 states have (on average 1.4429530201342282) internal successors, (215), 187 states have internal predecessors, (215), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 225 transitions. [2023-11-29 00:23:02,735 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 225 transitions. Word has length 48 [2023-11-29 00:23:02,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:02,735 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 225 transitions. [2023-11-29 00:23:02,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 225 transitions. [2023-11-29 00:23:02,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 00:23:02,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:02,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:02,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 00:23:02,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:02,937 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:02,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash -253295723, now seen corresponding path program 1 times [2023-11-29 00:23:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500042295] [2023-11-29 00:23:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:02,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:02,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:02,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476954890] [2023-11-29 00:23:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:02,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:02,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:02,946 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:02,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:23:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:02,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:23:02,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:03,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:03,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500042295] [2023-11-29 00:23:03,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:03,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476954890] [2023-11-29 00:23:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476954890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:03,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:03,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597642540] [2023-11-29 00:23:03,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:03,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:03,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:03,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:03,035 INFO L87 Difference]: Start difference. First operand 195 states and 225 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:03,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:03,073 INFO L93 Difference]: Finished difference Result 206 states and 237 transitions. [2023-11-29 00:23:03,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:03,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-29 00:23:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:03,075 INFO L225 Difference]: With dead ends: 206 [2023-11-29 00:23:03,075 INFO L226 Difference]: Without dead ends: 205 [2023-11-29 00:23:03,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:03,076 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 13 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:03,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 315 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:03,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-29 00:23:03,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2023-11-29 00:23:03,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 157 states have (on average 1.4331210191082802) internal successors, (225), 195 states have internal predecessors, (225), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:03,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 235 transitions. [2023-11-29 00:23:03,086 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 235 transitions. Word has length 49 [2023-11-29 00:23:03,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:03,087 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 235 transitions. [2023-11-29 00:23:03,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:03,087 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 235 transitions. [2023-11-29 00:23:03,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 00:23:03,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:03,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:03,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 00:23:03,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:03,288 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:03,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash 575857347, now seen corresponding path program 1 times [2023-11-29 00:23:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:03,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097790458] [2023-11-29 00:23:03,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:03,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:03,295 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:03,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341694631] [2023-11-29 00:23:03,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:03,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:03,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:03,296 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:03,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 00:23:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:03,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:23:03,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:03,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:03,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097790458] [2023-11-29 00:23:03,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:03,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341694631] [2023-11-29 00:23:03,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341694631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:03,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:03,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926406673] [2023-11-29 00:23:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:03,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:03,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:03,386 INFO L87 Difference]: Start difference. First operand 203 states and 235 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:03,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:03,424 INFO L93 Difference]: Finished difference Result 203 states and 235 transitions. [2023-11-29 00:23:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2023-11-29 00:23:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:03,425 INFO L225 Difference]: With dead ends: 203 [2023-11-29 00:23:03,425 INFO L226 Difference]: Without dead ends: 201 [2023-11-29 00:23:03,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:03,426 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 71 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:03,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 205 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-29 00:23:03,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2023-11-29 00:23:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 157 states have (on average 1.414012738853503) internal successors, (222), 193 states have internal predecessors, (222), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 232 transitions. [2023-11-29 00:23:03,437 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 232 transitions. Word has length 49 [2023-11-29 00:23:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:03,438 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 232 transitions. [2023-11-29 00:23:03,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 232 transitions. [2023-11-29 00:23:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 00:23:03,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:03,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:03,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:03,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 00:23:03,639 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:03,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 671708696, now seen corresponding path program 1 times [2023-11-29 00:23:03,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:03,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128938762] [2023-11-29 00:23:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:03,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:03,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:03,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56350961] [2023-11-29 00:23:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:03,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:03,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:03,650 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:03,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 00:23:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:03,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:23:03,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:03,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:03,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:03,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128938762] [2023-11-29 00:23:03,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:03,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56350961] [2023-11-29 00:23:03,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56350961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:03,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:03,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:23:03,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561766593] [2023-11-29 00:23:03,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:03,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:23:03,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:03,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:23:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:23:03,760 INFO L87 Difference]: Start difference. First operand 201 states and 232 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:03,817 INFO L93 Difference]: Finished difference Result 239 states and 246 transitions. [2023-11-29 00:23:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:23:03,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2023-11-29 00:23:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:03,821 INFO L225 Difference]: With dead ends: 239 [2023-11-29 00:23:03,821 INFO L226 Difference]: Without dead ends: 238 [2023-11-29 00:23:03,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:03,822 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:03,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 297 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:23:03,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-29 00:23:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 209. [2023-11-29 00:23:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 165 states have (on average 1.4) internal successors, (231), 201 states have internal predecessors, (231), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 241 transitions. [2023-11-29 00:23:03,833 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 241 transitions. Word has length 50 [2023-11-29 00:23:03,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:03,834 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 241 transitions. [2023-11-29 00:23:03,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 241 transitions. [2023-11-29 00:23:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 00:23:03,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:03,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:03,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 00:23:04,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 00:23:04,035 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:04,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:04,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1395947735, now seen corresponding path program 1 times [2023-11-29 00:23:04,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:04,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228924642] [2023-11-29 00:23:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:04,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:04,043 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:04,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787758645] [2023-11-29 00:23:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:04,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:04,044 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:04,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 00:23:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:04,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:23:04,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:04,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:04,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:04,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228924642] [2023-11-29 00:23:04,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:04,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787758645] [2023-11-29 00:23:04,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787758645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:04,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:04,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:23:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553564633] [2023-11-29 00:23:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:23:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:04,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:23:04,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:23:04,359 INFO L87 Difference]: Start difference. First operand 209 states and 241 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:04,623 INFO L93 Difference]: Finished difference Result 209 states and 241 transitions. [2023-11-29 00:23:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:23:04,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2023-11-29 00:23:04,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:04,625 INFO L225 Difference]: With dead ends: 209 [2023-11-29 00:23:04,625 INFO L226 Difference]: Without dead ends: 207 [2023-11-29 00:23:04,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:23:04,626 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 163 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:04,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 293 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-29 00:23:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-29 00:23:04,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 199 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:23:04,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 237 transitions. [2023-11-29 00:23:04,635 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 237 transitions. Word has length 51 [2023-11-29 00:23:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:04,635 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 237 transitions. [2023-11-29 00:23:04,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 237 transitions. [2023-11-29 00:23:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 00:23:04,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:04,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:04,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 00:23:04,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 00:23:04,838 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:04,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash 324706881, now seen corresponding path program 1 times [2023-11-29 00:23:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:04,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767061900] [2023-11-29 00:23:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:04,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:04,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435334924] [2023-11-29 00:23:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:04,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:04,846 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:04,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 00:23:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:04,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:23:04,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:05,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:05,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:05,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767061900] [2023-11-29 00:23:05,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:05,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435334924] [2023-11-29 00:23:05,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435334924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:05,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:05,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 00:23:05,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269518181] [2023-11-29 00:23:05,460 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:05,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:23:05,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:05,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:23:05,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:23:05,461 INFO L87 Difference]: Start difference. First operand 207 states and 237 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:05,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:05,753 INFO L93 Difference]: Finished difference Result 358 states and 416 transitions. [2023-11-29 00:23:05,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:23:05,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2023-11-29 00:23:05,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:05,755 INFO L225 Difference]: With dead ends: 358 [2023-11-29 00:23:05,756 INFO L226 Difference]: Without dead ends: 356 [2023-11-29 00:23:05,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:23:05,757 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 208 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:05,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 311 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:05,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-29 00:23:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 257. [2023-11-29 00:23:05,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 213 states have (on average 1.403755868544601) internal successors, (299), 247 states have internal predecessors, (299), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 00:23:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 313 transitions. [2023-11-29 00:23:05,776 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 313 transitions. Word has length 52 [2023-11-29 00:23:05,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:05,776 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 313 transitions. [2023-11-29 00:23:05,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 313 transitions. [2023-11-29 00:23:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 00:23:05,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:05,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:05,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:05,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 00:23:05,978 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:05,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:05,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1076398939, now seen corresponding path program 1 times [2023-11-29 00:23:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:05,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074932546] [2023-11-29 00:23:05,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:05,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:05,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:05,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677748761] [2023-11-29 00:23:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:05,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:05,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:05,988 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:05,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 00:23:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:06,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:23:06,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:06,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074932546] [2023-11-29 00:23:06,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677748761] [2023-11-29 00:23:06,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677748761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:06,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:06,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:23:06,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702657592] [2023-11-29 00:23:06,644 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:06,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:23:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:23:06,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:23:06,646 INFO L87 Difference]: Start difference. First operand 257 states and 313 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:07,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:07,149 INFO L93 Difference]: Finished difference Result 257 states and 313 transitions. [2023-11-29 00:23:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:23:07,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2023-11-29 00:23:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:07,151 INFO L225 Difference]: With dead ends: 257 [2023-11-29 00:23:07,152 INFO L226 Difference]: Without dead ends: 255 [2023-11-29 00:23:07,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:23:07,153 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 310 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:07,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 177 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:23:07,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-29 00:23:07,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-11-29 00:23:07,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 213 states have (on average 1.375586854460094) internal successors, (293), 245 states have internal predecessors, (293), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 00:23:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 307 transitions. [2023-11-29 00:23:07,171 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 307 transitions. Word has length 55 [2023-11-29 00:23:07,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:07,171 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 307 transitions. [2023-11-29 00:23:07,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 307 transitions. [2023-11-29 00:23:07,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 00:23:07,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:07,173 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:07,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:07,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 00:23:07,373 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:07,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:07,374 INFO L85 PathProgramCache]: Analyzing trace with hash -991371195, now seen corresponding path program 1 times [2023-11-29 00:23:07,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:07,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369718609] [2023-11-29 00:23:07,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:07,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:07,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:07,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940245469] [2023-11-29 00:23:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:07,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:07,399 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:07,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 00:23:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:07,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:23:07,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:07,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:08,480 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:08,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:08,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369718609] [2023-11-29 00:23:08,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:08,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940245469] [2023-11-29 00:23:08,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940245469] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:08,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:08,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 00:23:08,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736924649] [2023-11-29 00:23:08,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:08,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:23:08,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:08,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:23:08,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:23:08,484 INFO L87 Difference]: Start difference. First operand 255 states and 307 transitions. Second operand has 17 states, 16 states have (on average 5.75) internal successors, (92), 17 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:23:19,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:19,189 INFO L93 Difference]: Finished difference Result 460 states and 534 transitions. [2023-11-29 00:23:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:23:19,190 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.75) internal successors, (92), 17 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2023-11-29 00:23:19,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:19,192 INFO L225 Difference]: With dead ends: 460 [2023-11-29 00:23:19,192 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 00:23:19,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=270, Invalid=852, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:23:19,193 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 933 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:19,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 334 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-11-29 00:23:19,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 00:23:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 299. [2023-11-29 00:23:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 256 states have (on average 1.359375) internal successors, (348), 288 states have internal predecessors, (348), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:23:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 364 transitions. [2023-11-29 00:23:19,218 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 364 transitions. Word has length 56 [2023-11-29 00:23:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:19,218 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 364 transitions. [2023-11-29 00:23:19,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.75) internal successors, (92), 17 states have internal predecessors, (92), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:23:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 364 transitions. [2023-11-29 00:23:19,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 00:23:19,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:19,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:19,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 00:23:19,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:19,420 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:19,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1477004917, now seen corresponding path program 1 times [2023-11-29 00:23:19,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714619264] [2023-11-29 00:23:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:19,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:19,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049692954] [2023-11-29 00:23:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:19,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:19,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:19,428 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:19,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 00:23:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:19,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:23:19,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:19,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:19,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:19,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714619264] [2023-11-29 00:23:19,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:19,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049692954] [2023-11-29 00:23:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049692954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:19,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:19,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:23:19,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682839856] [2023-11-29 00:23:19,809 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:19,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:23:19,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:19,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:23:19,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:23:19,811 INFO L87 Difference]: Start difference. First operand 299 states and 364 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:20,136 INFO L93 Difference]: Finished difference Result 324 states and 367 transitions. [2023-11-29 00:23:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:23:20,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2023-11-29 00:23:20,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:20,138 INFO L225 Difference]: With dead ends: 324 [2023-11-29 00:23:20,138 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 00:23:20,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:23:20,139 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 234 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 336 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:23:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 00:23:20,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 297. [2023-11-29 00:23:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 256 states have (on average 1.34375) internal successors, (344), 286 states have internal predecessors, (344), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:23:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 360 transitions. [2023-11-29 00:23:20,171 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 360 transitions. Word has length 57 [2023-11-29 00:23:20,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:20,171 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 360 transitions. [2023-11-29 00:23:20,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 360 transitions. [2023-11-29 00:23:20,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 00:23:20,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:20,173 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:20,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 00:23:20,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:20,373 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:20,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:20,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1457487889, now seen corresponding path program 1 times [2023-11-29 00:23:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:20,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247866436] [2023-11-29 00:23:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:20,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:20,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912852140] [2023-11-29 00:23:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:20,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:20,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:20,384 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:20,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 00:23:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:20,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:23:20,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:20,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247866436] [2023-11-29 00:23:21,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912852140] [2023-11-29 00:23:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912852140] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:21,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:21,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:23:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308114830] [2023-11-29 00:23:21,084 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:21,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:23:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:21,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:23:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:23:21,086 INFO L87 Difference]: Start difference. First operand 297 states and 360 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:21,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:21,669 INFO L93 Difference]: Finished difference Result 412 states and 455 transitions. [2023-11-29 00:23:21,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:23:21,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2023-11-29 00:23:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:21,672 INFO L225 Difference]: With dead ends: 412 [2023-11-29 00:23:21,672 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 00:23:21,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:23:21,673 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 335 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:21,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 363 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:23:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 00:23:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 334. [2023-11-29 00:23:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 292 states have (on average 1.3664383561643836) internal successors, (399), 322 states have internal predecessors, (399), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:21,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 417 transitions. [2023-11-29 00:23:21,690 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 417 transitions. Word has length 58 [2023-11-29 00:23:21,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:21,691 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 417 transitions. [2023-11-29 00:23:21,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:21,691 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 417 transitions. [2023-11-29 00:23:21,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 00:23:21,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:21,692 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:21,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:21,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 00:23:21,893 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:21,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:21,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1744077345, now seen corresponding path program 1 times [2023-11-29 00:23:21,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:21,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220196076] [2023-11-29 00:23:21,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:21,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:21,900 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:21,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [471783357] [2023-11-29 00:23:21,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:21,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:21,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:21,901 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:21,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 00:23:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:21,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:23:21,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 00:23:22,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 00:23:22,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:22,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220196076] [2023-11-29 00:23:22,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:22,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471783357] [2023-11-29 00:23:22,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471783357] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:22,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:22,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 00:23:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13167719] [2023-11-29 00:23:22,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:22,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:23:22,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:23:22,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:22,090 INFO L87 Difference]: Start difference. First operand 334 states and 417 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:22,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:22,264 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2023-11-29 00:23:22,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:23:22,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-11-29 00:23:22,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:22,268 INFO L225 Difference]: With dead ends: 381 [2023-11-29 00:23:22,268 INFO L226 Difference]: Without dead ends: 379 [2023-11-29 00:23:22,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:23:22,268 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 244 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:22,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 284 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-29 00:23:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 335. [2023-11-29 00:23:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 293 states have (on average 1.3549488054607508) internal successors, (397), 323 states have internal predecessors, (397), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 415 transitions. [2023-11-29 00:23:22,285 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 415 transitions. Word has length 59 [2023-11-29 00:23:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:22,286 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 415 transitions. [2023-11-29 00:23:22,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:22,286 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 415 transitions. [2023-11-29 00:23:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 00:23:22,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:22,287 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:22,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 00:23:22,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 00:23:22,487 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:22,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:22,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1768177225, now seen corresponding path program 1 times [2023-11-29 00:23:22,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:22,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636459902] [2023-11-29 00:23:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:22,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:22,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187140901] [2023-11-29 00:23:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:22,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:22,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:22,496 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:22,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 00:23:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:22,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:23:22,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 00:23:22,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 00:23:22,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:22,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636459902] [2023-11-29 00:23:22,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:22,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187140901] [2023-11-29 00:23:22,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187140901] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:22,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:22,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 00:23:22,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652502973] [2023-11-29 00:23:22,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:22,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:23:22,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:22,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:23:22,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:23:22,667 INFO L87 Difference]: Start difference. First operand 335 states and 415 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:22,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:22,837 INFO L93 Difference]: Finished difference Result 379 states and 444 transitions. [2023-11-29 00:23:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:23:22,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-11-29 00:23:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:22,840 INFO L225 Difference]: With dead ends: 379 [2023-11-29 00:23:22,840 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 00:23:22,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:23:22,840 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 260 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:22,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 258 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:23:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 00:23:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 336. [2023-11-29 00:23:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 294 states have (on average 1.3435374149659864) internal successors, (395), 324 states have internal predecessors, (395), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 413 transitions. [2023-11-29 00:23:22,857 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 413 transitions. Word has length 60 [2023-11-29 00:23:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:22,858 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 413 transitions. [2023-11-29 00:23:22,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 413 transitions. [2023-11-29 00:23:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 00:23:22,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:22,859 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:22,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 00:23:23,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 00:23:23,060 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:23,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:23,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1021080799, now seen corresponding path program 1 times [2023-11-29 00:23:23,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:23,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79673375] [2023-11-29 00:23:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:23,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:23,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:23,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138475788] [2023-11-29 00:23:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:23,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:23,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:23,071 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:23,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 00:23:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:23,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 00:23:23,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:23,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:24,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79673375] [2023-11-29 00:23:24,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138475788] [2023-11-29 00:23:24,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138475788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:24,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:24,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:23:24,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915465034] [2023-11-29 00:23:24,112 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:24,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:23:24,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:24,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:23:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:23:24,114 INFO L87 Difference]: Start difference. First operand 336 states and 413 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:25,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:25,090 INFO L93 Difference]: Finished difference Result 375 states and 438 transitions. [2023-11-29 00:23:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:23:25,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 61 [2023-11-29 00:23:25,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:25,092 INFO L225 Difference]: With dead ends: 375 [2023-11-29 00:23:25,093 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 00:23:25,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:23:25,094 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 370 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:25,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 242 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:23:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 00:23:25,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 337. [2023-11-29 00:23:25,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 295 states have (on average 1.3322033898305086) internal successors, (393), 325 states have internal predecessors, (393), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 411 transitions. [2023-11-29 00:23:25,118 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 411 transitions. Word has length 61 [2023-11-29 00:23:25,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:25,118 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 411 transitions. [2023-11-29 00:23:25,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:23:25,119 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 411 transitions. [2023-11-29 00:23:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 00:23:25,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:25,119 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:25,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:25,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 00:23:25,320 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:25,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:25,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2097599729, now seen corresponding path program 1 times [2023-11-29 00:23:25,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:25,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850758928] [2023-11-29 00:23:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:25,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:25,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:25,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265557542] [2023-11-29 00:23:25,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:25,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:25,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:25,329 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:25,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 00:23:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:25,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:23:25,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:25,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:25,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:25,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850758928] [2023-11-29 00:23:25,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:25,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265557542] [2023-11-29 00:23:25,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265557542] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:25,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:25,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 00:23:25,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278659829] [2023-11-29 00:23:25,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:25,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:23:25,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:23:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:23:25,779 INFO L87 Difference]: Start difference. First operand 337 states and 411 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:26,316 INFO L93 Difference]: Finished difference Result 370 states and 431 transitions. [2023-11-29 00:23:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:23:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2023-11-29 00:23:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:26,319 INFO L225 Difference]: With dead ends: 370 [2023-11-29 00:23:26,319 INFO L226 Difference]: Without dead ends: 368 [2023-11-29 00:23:26,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:23:26,320 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 316 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:26,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 344 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:23:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-29 00:23:26,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 335. [2023-11-29 00:23:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 295 states have (on average 1.3152542372881355) internal successors, (388), 323 states have internal predecessors, (388), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:23:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 406 transitions. [2023-11-29 00:23:26,337 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 406 transitions. Word has length 61 [2023-11-29 00:23:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:26,338 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 406 transitions. [2023-11-29 00:23:26,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 406 transitions. [2023-11-29 00:23:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 00:23:26,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:26,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:26,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 00:23:26,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 00:23:26,539 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:26,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:26,539 INFO L85 PathProgramCache]: Analyzing trace with hash -601082091, now seen corresponding path program 1 times [2023-11-29 00:23:26,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:26,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223088746] [2023-11-29 00:23:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:26,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:26,548 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:26,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685390028] [2023-11-29 00:23:26,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:26,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:26,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:26,550 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:26,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 00:23:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:26,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:23:26,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:26,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:28,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:28,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223088746] [2023-11-29 00:23:28,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:28,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685390028] [2023-11-29 00:23:28,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685390028] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:28,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:28,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:23:28,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826512080] [2023-11-29 00:23:28,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:28,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:23:28,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:28,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:23:28,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:23:28,059 INFO L87 Difference]: Start difference. First operand 335 states and 406 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 00:23:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:40,514 INFO L93 Difference]: Finished difference Result 497 states and 536 transitions. [2023-11-29 00:23:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:23:40,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 62 [2023-11-29 00:23:40,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:40,516 INFO L225 Difference]: With dead ends: 497 [2023-11-29 00:23:40,516 INFO L226 Difference]: Without dead ends: 495 [2023-11-29 00:23:40,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:23:40,517 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 991 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:40,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 491 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-11-29 00:23:40,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-11-29 00:23:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 372. [2023-11-29 00:23:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 331 states have (on average 1.3232628398791542) internal successors, (438), 359 states have internal predecessors, (438), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 00:23:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 458 transitions. [2023-11-29 00:23:40,539 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 458 transitions. Word has length 62 [2023-11-29 00:23:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:40,539 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 458 transitions. [2023-11-29 00:23:40,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 00:23:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 458 transitions. [2023-11-29 00:23:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 00:23:40,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:40,540 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:40,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 00:23:40,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 00:23:40,740 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:40,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1453675567, now seen corresponding path program 1 times [2023-11-29 00:23:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:40,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505562551] [2023-11-29 00:23:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:40,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:40,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118420873] [2023-11-29 00:23:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:40,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:40,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:40,748 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:40,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 00:23:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:40,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:23:40,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:40,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:41,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:41,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505562551] [2023-11-29 00:23:41,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:41,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118420873] [2023-11-29 00:23:41,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118420873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:41,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:41,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:23:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095739567] [2023-11-29 00:23:41,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:41,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:23:41,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:41,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:23:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:23:41,223 INFO L87 Difference]: Start difference. First operand 372 states and 458 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:42,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:42,124 INFO L93 Difference]: Finished difference Result 573 states and 711 transitions. [2023-11-29 00:23:42,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:23:42,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2023-11-29 00:23:42,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:42,127 INFO L225 Difference]: With dead ends: 573 [2023-11-29 00:23:42,127 INFO L226 Difference]: Without dead ends: 571 [2023-11-29 00:23:42,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:23:42,127 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 253 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:42,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 402 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:23:42,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-29 00:23:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 520. [2023-11-29 00:23:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 475 states have (on average 1.3494736842105264) internal successors, (641), 503 states have internal predecessors, (641), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:23:42,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 669 transitions. [2023-11-29 00:23:42,162 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 669 transitions. Word has length 63 [2023-11-29 00:23:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:42,162 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 669 transitions. [2023-11-29 00:23:42,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 669 transitions. [2023-11-29 00:23:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 00:23:42,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:42,164 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:42,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 00:23:42,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 00:23:42,365 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:42,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2114269545, now seen corresponding path program 1 times [2023-11-29 00:23:42,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:42,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227757939] [2023-11-29 00:23:42,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:42,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:42,370 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:42,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420471082] [2023-11-29 00:23:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:42,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:42,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:42,372 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:42,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 00:23:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:42,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:23:42,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:42,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:42,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:42,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227757939] [2023-11-29 00:23:42,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:42,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420471082] [2023-11-29 00:23:42,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420471082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:42,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:42,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 00:23:42,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251112506] [2023-11-29 00:23:42,754 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:42,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:23:42,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:42,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:23:42,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:23:42,755 INFO L87 Difference]: Start difference. First operand 520 states and 669 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:43,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:43,336 INFO L93 Difference]: Finished difference Result 548 states and 684 transitions. [2023-11-29 00:23:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:23:43,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2023-11-29 00:23:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:43,340 INFO L225 Difference]: With dead ends: 548 [2023-11-29 00:23:43,340 INFO L226 Difference]: Without dead ends: 546 [2023-11-29 00:23:43,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:23:43,341 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 379 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:43,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 344 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:23:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-29 00:23:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 518. [2023-11-29 00:23:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 475 states have (on average 1.328421052631579) internal successors, (631), 501 states have internal predecessors, (631), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:23:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 659 transitions. [2023-11-29 00:23:43,382 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 659 transitions. Word has length 64 [2023-11-29 00:23:43,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:43,383 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 659 transitions. [2023-11-29 00:23:43,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 659 transitions. [2023-11-29 00:23:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 00:23:43,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:43,384 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:43,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 00:23:43,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 00:23:43,584 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:43,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1117846381, now seen corresponding path program 1 times [2023-11-29 00:23:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:43,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404930574] [2023-11-29 00:23:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:43,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:43,589 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:43,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874169686] [2023-11-29 00:23:43,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:43,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:43,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:43,590 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:43,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 00:23:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:43,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:23:43,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:43,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:44,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:44,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404930574] [2023-11-29 00:23:44,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:44,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874169686] [2023-11-29 00:23:44,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874169686] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:44,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:44,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:23:44,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843355783] [2023-11-29 00:23:44,252 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:44,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:23:44,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:44,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:23:44,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:23:44,253 INFO L87 Difference]: Start difference. First operand 518 states and 659 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:45,589 INFO L93 Difference]: Finished difference Result 567 states and 693 transitions. [2023-11-29 00:23:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:23:45,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2023-11-29 00:23:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:45,592 INFO L225 Difference]: With dead ends: 567 [2023-11-29 00:23:45,592 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 00:23:45,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:23:45,593 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 287 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:45,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 253 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:23:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 00:23:45,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 519. [2023-11-29 00:23:45,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 476 states have (on average 1.319327731092437) internal successors, (628), 502 states have internal predecessors, (628), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:23:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 656 transitions. [2023-11-29 00:23:45,618 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 656 transitions. Word has length 65 [2023-11-29 00:23:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:45,618 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 656 transitions. [2023-11-29 00:23:45,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 656 transitions. [2023-11-29 00:23:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 00:23:45,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:45,619 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:45,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 00:23:45,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 00:23:45,819 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:45,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash 687793999, now seen corresponding path program 1 times [2023-11-29 00:23:45,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:45,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786880298] [2023-11-29 00:23:45,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:45,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:45,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782828353] [2023-11-29 00:23:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:45,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:45,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:45,827 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:45,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 00:23:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:45,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:23:45,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:45,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:46,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786880298] [2023-11-29 00:23:46,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:46,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782828353] [2023-11-29 00:23:46,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782828353] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:46,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:46,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 00:23:46,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3094658] [2023-11-29 00:23:46,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:46,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:23:46,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:23:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:23:46,070 INFO L87 Difference]: Start difference. First operand 519 states and 656 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:23:46,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:46,333 INFO L93 Difference]: Finished difference Result 565 states and 687 transitions. [2023-11-29 00:23:46,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:23:46,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 66 [2023-11-29 00:23:46,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:46,336 INFO L225 Difference]: With dead ends: 565 [2023-11-29 00:23:46,336 INFO L226 Difference]: Without dead ends: 563 [2023-11-29 00:23:46,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:23:46,337 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 203 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:46,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 223 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-29 00:23:46,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 532. [2023-11-29 00:23:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 489 states have (on average 1.296523517382413) internal successors, (634), 515 states have internal predecessors, (634), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:23:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 662 transitions. [2023-11-29 00:23:46,362 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 662 transitions. Word has length 66 [2023-11-29 00:23:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:46,362 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 662 transitions. [2023-11-29 00:23:46,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:23:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 662 transitions. [2023-11-29 00:23:46,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 00:23:46,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:46,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:46,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 00:23:46,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 00:23:46,564 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:46,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash -153222425, now seen corresponding path program 1 times [2023-11-29 00:23:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:46,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5219832] [2023-11-29 00:23:46,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:46,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260350097] [2023-11-29 00:23:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:46,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:46,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:46,570 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:46,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 00:23:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:46,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:23:46,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:46,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:46,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:46,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5219832] [2023-11-29 00:23:46,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:46,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260350097] [2023-11-29 00:23:46,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260350097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:46,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:46,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:23:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48052984] [2023-11-29 00:23:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:46,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:23:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:23:46,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:23:46,690 INFO L87 Difference]: Start difference. First operand 532 states and 662 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:23:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:46,950 INFO L93 Difference]: Finished difference Result 838 states and 1050 transitions. [2023-11-29 00:23:46,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:23:46,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 67 [2023-11-29 00:23:46,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:46,955 INFO L225 Difference]: With dead ends: 838 [2023-11-29 00:23:46,955 INFO L226 Difference]: Without dead ends: 836 [2023-11-29 00:23:46,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:23:46,956 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:46,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 263 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-11-29 00:23:47,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 712. [2023-11-29 00:23:47,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 664 states have (on average 1.2966867469879517) internal successors, (861), 690 states have internal predecessors, (861), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 00:23:47,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 899 transitions. [2023-11-29 00:23:47,009 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 899 transitions. Word has length 67 [2023-11-29 00:23:47,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:47,010 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 899 transitions. [2023-11-29 00:23:47,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:23:47,010 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 899 transitions. [2023-11-29 00:23:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 00:23:47,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:47,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:47,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 00:23:47,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 00:23:47,214 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:47,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash -454927791, now seen corresponding path program 1 times [2023-11-29 00:23:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:47,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871116141] [2023-11-29 00:23:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:47,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:47,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:47,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309267724] [2023-11-29 00:23:47,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:47,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:47,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:47,222 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:47,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 00:23:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:47,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:23:47,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:47,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:23:47,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:47,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871116141] [2023-11-29 00:23:47,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:47,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309267724] [2023-11-29 00:23:47,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309267724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:23:47,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:23:47,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:23:47,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205886558] [2023-11-29 00:23:47,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:23:47,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:23:47,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:47,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:23:47,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:23:47,515 INFO L87 Difference]: Start difference. First operand 712 states and 899 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:47,798 INFO L93 Difference]: Finished difference Result 736 states and 912 transitions. [2023-11-29 00:23:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:23:47,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2023-11-29 00:23:47,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:47,802 INFO L225 Difference]: With dead ends: 736 [2023-11-29 00:23:47,802 INFO L226 Difference]: Without dead ends: 734 [2023-11-29 00:23:47,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:23:47,803 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 178 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:47,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 267 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:23:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-29 00:23:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 719. [2023-11-29 00:23:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 671 states have (on average 1.2891207153502235) internal successors, (865), 697 states have internal predecessors, (865), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 00:23:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 903 transitions. [2023-11-29 00:23:47,847 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 903 transitions. Word has length 68 [2023-11-29 00:23:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:47,847 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 903 transitions. [2023-11-29 00:23:47,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 903 transitions. [2023-11-29 00:23:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 00:23:47,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:47,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:47,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 00:23:48,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:48,048 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:48,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1735424739, now seen corresponding path program 1 times [2023-11-29 00:23:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515253180] [2023-11-29 00:23:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:48,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:48,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931667113] [2023-11-29 00:23:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:48,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:48,056 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:48,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 00:23:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:48,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 00:23:48,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:23:48,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:52,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:52,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515253180] [2023-11-29 00:23:52,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:52,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931667113] [2023-11-29 00:23:52,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931667113] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:52,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:52,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 00:23:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765542225] [2023-11-29 00:23:52,923 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:52,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:23:52,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:52,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:23:52,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=352, Unknown=1, NotChecked=0, Total=420 [2023-11-29 00:23:52,924 INFO L87 Difference]: Start difference. First operand 719 states and 903 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:53,733 INFO L93 Difference]: Finished difference Result 769 states and 947 transitions. [2023-11-29 00:23:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:23:53,734 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2023-11-29 00:23:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:53,737 INFO L225 Difference]: With dead ends: 769 [2023-11-29 00:23:53,737 INFO L226 Difference]: Without dead ends: 768 [2023-11-29 00:23:53,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=125, Invalid=576, Unknown=1, NotChecked=0, Total=702 [2023-11-29 00:23:53,738 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 283 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:53,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 363 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:23:53,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-11-29 00:23:53,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 719. [2023-11-29 00:23:53,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 671 states have (on average 1.2876304023845007) internal successors, (864), 697 states have internal predecessors, (864), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 00:23:53,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 902 transitions. [2023-11-29 00:23:53,774 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 902 transitions. Word has length 70 [2023-11-29 00:23:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:53,774 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 902 transitions. [2023-11-29 00:23:53,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 902 transitions. [2023-11-29 00:23:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 00:23:53,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:53,774 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:53,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 00:23:53,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:53,975 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:53,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:53,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2036408025, now seen corresponding path program 1 times [2023-11-29 00:23:53,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:53,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908669674] [2023-11-29 00:23:53,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:53,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:53,982 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:53,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929359010] [2023-11-29 00:23:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:53,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:53,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:53,983 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:53,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 00:23:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:54,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:23:54,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:54,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:54,584 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:54,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908669674] [2023-11-29 00:23:54,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929359010] [2023-11-29 00:23:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929359010] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:54,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 00:23:54,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170012211] [2023-11-29 00:23:54,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:54,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:23:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:54,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:23:54,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:23:54,586 INFO L87 Difference]: Start difference. First operand 719 states and 902 transitions. Second operand has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:23:55,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:55,903 INFO L93 Difference]: Finished difference Result 872 states and 1067 transitions. [2023-11-29 00:23:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:23:55,904 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 71 [2023-11-29 00:23:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:55,908 INFO L225 Difference]: With dead ends: 872 [2023-11-29 00:23:55,908 INFO L226 Difference]: Without dead ends: 870 [2023-11-29 00:23:55,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:23:55,909 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 507 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:55,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 308 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:23:55,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-11-29 00:23:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 718. [2023-11-29 00:23:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 670 states have (on average 1.2895522388059701) internal successors, (864), 696 states have internal predecessors, (864), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 00:23:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 902 transitions. [2023-11-29 00:23:55,967 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 902 transitions. Word has length 71 [2023-11-29 00:23:55,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:55,968 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 902 transitions. [2023-11-29 00:23:55,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:23:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 902 transitions. [2023-11-29 00:23:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 00:23:55,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:55,968 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:55,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 00:23:56,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:56,169 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:56,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1295860577, now seen corresponding path program 1 times [2023-11-29 00:23:56,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:56,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060678490] [2023-11-29 00:23:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:56,176 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:56,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921242494] [2023-11-29 00:23:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:56,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:56,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:56,177 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:56,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 00:23:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:56,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:23:56,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:23:56,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:57,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:57,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060678490] [2023-11-29 00:23:57,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:57,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921242494] [2023-11-29 00:23:57,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921242494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:57,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:57,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:23:57,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002825130] [2023-11-29 00:23:57,169 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:57,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:23:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:57,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:23:57,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:23:57,170 INFO L87 Difference]: Start difference. First operand 718 states and 902 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:58,413 INFO L93 Difference]: Finished difference Result 749 states and 928 transitions. [2023-11-29 00:23:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:23:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 72 [2023-11-29 00:23:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:58,417 INFO L225 Difference]: With dead ends: 749 [2023-11-29 00:23:58,417 INFO L226 Difference]: Without dead ends: 747 [2023-11-29 00:23:58,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:23:58,417 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 97 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:58,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 278 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 607 Invalid, 1 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:23:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2023-11-29 00:23:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 721. [2023-11-29 00:23:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 673 states have (on average 1.286775631500743) internal successors, (866), 699 states have internal predecessors, (866), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 00:23:58,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 904 transitions. [2023-11-29 00:23:58,453 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 904 transitions. Word has length 72 [2023-11-29 00:23:58,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:58,453 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 904 transitions. [2023-11-29 00:23:58,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:23:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 904 transitions. [2023-11-29 00:23:58,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 00:23:58,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:58,454 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:58,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 00:23:58,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:58,655 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:58,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:58,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2099405738, now seen corresponding path program 1 times [2023-11-29 00:23:58,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:58,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895030482] [2023-11-29 00:23:58,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:58,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:58,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:58,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777701518] [2023-11-29 00:23:58,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:58,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:58,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:58,662 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:58,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 00:23:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:58,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:23:58,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:23:58,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:23:58,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895030482] [2023-11-29 00:23:58,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777701518] [2023-11-29 00:23:58,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777701518] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:58,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:58,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:23:58,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451153811] [2023-11-29 00:23:58,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:58,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:23:58,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:58,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:23:58,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:23:58,994 INFO L87 Difference]: Start difference. First operand 721 states and 904 transitions. Second operand has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:23:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:59,356 INFO L93 Difference]: Finished difference Result 970 states and 1173 transitions. [2023-11-29 00:23:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:23:59,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 78 [2023-11-29 00:23:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:59,362 INFO L225 Difference]: With dead ends: 970 [2023-11-29 00:23:59,362 INFO L226 Difference]: Without dead ends: 968 [2023-11-29 00:23:59,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:23:59,363 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1403 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:59,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 247 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:23:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2023-11-29 00:23:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 816. [2023-11-29 00:23:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 765 states have (on average 1.2823529411764707) internal successors, (981), 791 states have internal predecessors, (981), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 00:23:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2023-11-29 00:23:59,408 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 78 [2023-11-29 00:23:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:59,408 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2023-11-29 00:23:59,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 00:23:59,408 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2023-11-29 00:23:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:23:59,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:59,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:23:59,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 00:23:59,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:59,609 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:23:59,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash -657068333, now seen corresponding path program 1 times [2023-11-29 00:23:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:59,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441736768] [2023-11-29 00:23:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:59,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:59,617 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:59,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719003173] [2023-11-29 00:23:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:59,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:59,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:59,618 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:59,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 00:23:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:59,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:23:59,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:23:59,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:23:59,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441736768] [2023-11-29 00:23:59,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719003173] [2023-11-29 00:23:59,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719003173] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:23:59,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:23:59,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:23:59,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401476202] [2023-11-29 00:23:59,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:59,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:23:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:23:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:23:59,987 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:24:00,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:00,489 INFO L93 Difference]: Finished difference Result 1004 states and 1209 transitions. [2023-11-29 00:24:00,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:24:00,490 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 79 [2023-11-29 00:24:00,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:00,493 INFO L225 Difference]: With dead ends: 1004 [2023-11-29 00:24:00,493 INFO L226 Difference]: Without dead ends: 1003 [2023-11-29 00:24:00,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:24:00,494 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 466 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:00,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 305 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:24:00,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-29 00:24:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 819. [2023-11-29 00:24:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 768 states have (on average 1.2760416666666667) internal successors, (980), 794 states have internal predecessors, (980), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 00:24:00,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1024 transitions. [2023-11-29 00:24:00,543 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1024 transitions. Word has length 79 [2023-11-29 00:24:00,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:00,543 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1024 transitions. [2023-11-29 00:24:00,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:24:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1024 transitions. [2023-11-29 00:24:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 00:24:00,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:00,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:00,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 00:24:00,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 00:24:00,744 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:00,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1641946656, now seen corresponding path program 1 times [2023-11-29 00:24:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:00,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920043550] [2023-11-29 00:24:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:00,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:00,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411350850] [2023-11-29 00:24:00,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:00,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:00,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:00,752 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:00,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 00:24:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:00,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:24:00,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:00,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:01,063 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:01,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:01,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920043550] [2023-11-29 00:24:01,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:01,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411350850] [2023-11-29 00:24:01,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411350850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:01,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:01,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:24:01,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064257046] [2023-11-29 00:24:01,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:01,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:24:01,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:01,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:24:01,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:24:01,064 INFO L87 Difference]: Start difference. First operand 819 states and 1024 transitions. Second operand has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:02,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:24:03,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:03,348 INFO L93 Difference]: Finished difference Result 944 states and 1152 transitions. [2023-11-29 00:24:03,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:24:03,349 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 80 [2023-11-29 00:24:03,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:03,352 INFO L225 Difference]: With dead ends: 944 [2023-11-29 00:24:03,352 INFO L226 Difference]: Without dead ends: 941 [2023-11-29 00:24:03,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:24:03,353 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 399 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:03,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 861 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 00:24:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2023-11-29 00:24:03,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 847. [2023-11-29 00:24:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 795 states have (on average 1.270440251572327) internal successors, (1010), 821 states have internal predecessors, (1010), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 00:24:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1056 transitions. [2023-11-29 00:24:03,397 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1056 transitions. Word has length 80 [2023-11-29 00:24:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:03,397 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1056 transitions. [2023-11-29 00:24:03,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.0) internal successors, (121), 12 states have internal predecessors, (121), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1056 transitions. [2023-11-29 00:24:03,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 00:24:03,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:03,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:03,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 00:24:03,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 00:24:03,598 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:03,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:03,599 INFO L85 PathProgramCache]: Analyzing trace with hash 498464703, now seen corresponding path program 1 times [2023-11-29 00:24:03,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:03,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221398754] [2023-11-29 00:24:03,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:03,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:03,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:03,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995180423] [2023-11-29 00:24:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:03,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:03,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:03,608 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:03,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 00:24:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:03,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:24:03,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:03,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:03,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:03,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221398754] [2023-11-29 00:24:03,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:03,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995180423] [2023-11-29 00:24:03,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995180423] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:03,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:03,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 00:24:03,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426815847] [2023-11-29 00:24:03,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:03,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:24:03,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:03,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:24:03,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:24:03,990 INFO L87 Difference]: Start difference. First operand 847 states and 1056 transitions. Second operand has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:04,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:04,718 INFO L93 Difference]: Finished difference Result 1336 states and 1631 transitions. [2023-11-29 00:24:04,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:24:04,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 81 [2023-11-29 00:24:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:04,724 INFO L225 Difference]: With dead ends: 1336 [2023-11-29 00:24:04,724 INFO L226 Difference]: Without dead ends: 1335 [2023-11-29 00:24:04,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:24:04,725 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 299 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:04,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 466 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:24:04,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2023-11-29 00:24:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1072. [2023-11-29 00:24:04,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1013 states have (on average 1.2892398815399801) internal successors, (1306), 1039 states have internal predecessors, (1306), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:24:04,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1366 transitions. [2023-11-29 00:24:04,788 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1366 transitions. Word has length 81 [2023-11-29 00:24:04,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:04,788 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1366 transitions. [2023-11-29 00:24:04,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1366 transitions. [2023-11-29 00:24:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 00:24:04,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:04,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:04,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 00:24:04,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 00:24:04,990 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:04,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1738350956, now seen corresponding path program 1 times [2023-11-29 00:24:04,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:04,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126024262] [2023-11-29 00:24:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:04,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:04,995 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:04,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596428176] [2023-11-29 00:24:04,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:04,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:04,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:04,996 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:04,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 00:24:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:05,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:24:05,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:05,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:05,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:05,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126024262] [2023-11-29 00:24:05,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:05,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596428176] [2023-11-29 00:24:05,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596428176] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:05,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:05,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:24:05,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062351441] [2023-11-29 00:24:05,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:05,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:24:05,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:05,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:24:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:24:05,173 INFO L87 Difference]: Start difference. First operand 1072 states and 1366 transitions. Second operand has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:05,582 INFO L93 Difference]: Finished difference Result 1590 states and 1972 transitions. [2023-11-29 00:24:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:24:05,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 82 [2023-11-29 00:24:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:05,588 INFO L225 Difference]: With dead ends: 1590 [2023-11-29 00:24:05,588 INFO L226 Difference]: Without dead ends: 1589 [2023-11-29 00:24:05,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:24:05,588 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 218 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:05,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 491 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:24:05,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-11-29 00:24:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1311. [2023-11-29 00:24:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1247 states have (on average 1.280673616680032) internal successors, (1597), 1273 states have internal predecessors, (1597), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 00:24:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1667 transitions. [2023-11-29 00:24:05,665 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1667 transitions. Word has length 82 [2023-11-29 00:24:05,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:05,665 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 1667 transitions. [2023-11-29 00:24:05,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.88888888888889) internal successors, (125), 10 states have internal predecessors, (125), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1667 transitions. [2023-11-29 00:24:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 00:24:05,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:05,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:05,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 00:24:05,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:05,867 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:05,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 634608902, now seen corresponding path program 1 times [2023-11-29 00:24:05,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:05,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031689963] [2023-11-29 00:24:05,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:05,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:05,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:05,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596567835] [2023-11-29 00:24:05,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:05,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:05,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:05,875 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:05,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 00:24:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:05,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:24:05,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:06,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:06,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031689963] [2023-11-29 00:24:06,437 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:06,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596567835] [2023-11-29 00:24:06,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596567835] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:06,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:06,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:24:06,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305761136] [2023-11-29 00:24:06,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:06,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:24:06,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:06,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:24:06,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:24:06,439 INFO L87 Difference]: Start difference. First operand 1311 states and 1667 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:24:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:07,250 INFO L93 Difference]: Finished difference Result 1454 states and 1799 transitions. [2023-11-29 00:24:07,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:24:07,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 84 [2023-11-29 00:24:07,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:07,256 INFO L225 Difference]: With dead ends: 1454 [2023-11-29 00:24:07,256 INFO L226 Difference]: Without dead ends: 1453 [2023-11-29 00:24:07,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:24:07,256 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 686 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:07,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 399 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:24:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2023-11-29 00:24:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1337. [2023-11-29 00:24:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1273 states have (on average 1.2741555380989789) internal successors, (1622), 1299 states have internal predecessors, (1622), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 00:24:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1692 transitions. [2023-11-29 00:24:07,333 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1692 transitions. Word has length 84 [2023-11-29 00:24:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:07,333 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1692 transitions. [2023-11-29 00:24:07,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:24:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1692 transitions. [2023-11-29 00:24:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 00:24:07,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:07,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:07,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 00:24:07,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:07,534 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:07,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:07,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1801960399, now seen corresponding path program 1 times [2023-11-29 00:24:07,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422571035] [2023-11-29 00:24:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:07,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:07,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:07,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256632707] [2023-11-29 00:24:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:07,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:07,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:07,541 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:07,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 00:24:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:07,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:24:07,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:07,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:08,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:08,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422571035] [2023-11-29 00:24:08,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:08,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256632707] [2023-11-29 00:24:08,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256632707] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:08,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:08,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 00:24:08,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398359537] [2023-11-29 00:24:08,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:08,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:24:08,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:24:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:24:08,245 INFO L87 Difference]: Start difference. First operand 1337 states and 1692 transitions. Second operand has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 00:24:09,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:09,458 INFO L93 Difference]: Finished difference Result 1411 states and 1762 transitions. [2023-11-29 00:24:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:24:09,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 85 [2023-11-29 00:24:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:09,464 INFO L225 Difference]: With dead ends: 1411 [2023-11-29 00:24:09,464 INFO L226 Difference]: Without dead ends: 1410 [2023-11-29 00:24:09,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:24:09,465 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 566 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:09,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 395 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:24:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2023-11-29 00:24:09,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1337. [2023-11-29 00:24:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1273 states have (on average 1.2717989002356638) internal successors, (1619), 1299 states have internal predecessors, (1619), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 00:24:09,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1689 transitions. [2023-11-29 00:24:09,546 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1689 transitions. Word has length 85 [2023-11-29 00:24:09,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:09,546 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1689 transitions. [2023-11-29 00:24:09,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.384615384615385) internal successors, (135), 14 states have internal predecessors, (135), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 00:24:09,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1689 transitions. [2023-11-29 00:24:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 00:24:09,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:09,547 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:09,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 00:24:09,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:09,748 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:09,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:09,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1903468058, now seen corresponding path program 1 times [2023-11-29 00:24:09,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993812790] [2023-11-29 00:24:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:09,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:09,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881831406] [2023-11-29 00:24:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:09,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:09,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:09,756 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:09,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 00:24:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:09,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:24:09,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:09,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:10,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:10,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993812790] [2023-11-29 00:24:10,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:10,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881831406] [2023-11-29 00:24:10,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881831406] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:10,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:10,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 00:24:10,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873282500] [2023-11-29 00:24:10,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:10,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:24:10,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:24:10,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:24:10,121 INFO L87 Difference]: Start difference. First operand 1337 states and 1689 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:11,133 INFO L93 Difference]: Finished difference Result 1447 states and 1794 transitions. [2023-11-29 00:24:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 00:24:11,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 86 [2023-11-29 00:24:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:11,140 INFO L225 Difference]: With dead ends: 1447 [2023-11-29 00:24:11,140 INFO L226 Difference]: Without dead ends: 1446 [2023-11-29 00:24:11,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:24:11,141 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 620 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:11,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 564 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:24:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2023-11-29 00:24:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1349. [2023-11-29 00:24:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1285 states have (on average 1.272373540856031) internal successors, (1635), 1311 states have internal predecessors, (1635), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 00:24:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1705 transitions. [2023-11-29 00:24:11,217 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1705 transitions. Word has length 86 [2023-11-29 00:24:11,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:11,217 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 1705 transitions. [2023-11-29 00:24:11,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1705 transitions. [2023-11-29 00:24:11,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 00:24:11,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:11,218 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:11,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 00:24:11,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 00:24:11,418 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:11,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:11,419 INFO L85 PathProgramCache]: Analyzing trace with hash 295167100, now seen corresponding path program 1 times [2023-11-29 00:24:11,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:11,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358630862] [2023-11-29 00:24:11,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:11,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:11,424 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:11,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244083047] [2023-11-29 00:24:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:11,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:11,425 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:11,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 00:24:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:11,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:24:11,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:11,985 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:24:11,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:12,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:12,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358630862] [2023-11-29 00:24:12,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:12,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244083047] [2023-11-29 00:24:12,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244083047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:12,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:12,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 00:24:12,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114082260] [2023-11-29 00:24:12,413 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:12,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:24:12,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:12,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:24:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:24:12,414 INFO L87 Difference]: Start difference. First operand 1349 states and 1705 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:24:13,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:13,397 INFO L93 Difference]: Finished difference Result 1394 states and 1741 transitions. [2023-11-29 00:24:13,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:24:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 89 [2023-11-29 00:24:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:13,403 INFO L225 Difference]: With dead ends: 1394 [2023-11-29 00:24:13,403 INFO L226 Difference]: Without dead ends: 1392 [2023-11-29 00:24:13,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:24:13,404 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 212 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:13,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 738 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:24:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2023-11-29 00:24:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1349. [2023-11-29 00:24:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1285 states have (on average 1.270817120622568) internal successors, (1633), 1311 states have internal predecessors, (1633), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 00:24:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1703 transitions. [2023-11-29 00:24:13,481 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1703 transitions. Word has length 89 [2023-11-29 00:24:13,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:13,481 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 1703 transitions. [2023-11-29 00:24:13,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:24:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1703 transitions. [2023-11-29 00:24:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 00:24:13,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:13,483 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:13,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 00:24:13,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 00:24:13,683 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:13,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash 32804096, now seen corresponding path program 1 times [2023-11-29 00:24:13,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638203414] [2023-11-29 00:24:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:13,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:13,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377737787] [2023-11-29 00:24:13,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:13,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:13,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:13,691 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:13,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 00:24:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:13,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:24:13,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:24:14,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:24:15,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:15,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638203414] [2023-11-29 00:24:15,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:15,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377737787] [2023-11-29 00:24:15,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377737787] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:15,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:15,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 00:24:15,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046350196] [2023-11-29 00:24:15,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:15,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 00:24:15,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 00:24:15,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:24:15,988 INFO L87 Difference]: Start difference. First operand 1349 states and 1703 transitions. Second operand has 25 states, 24 states have (on average 6.458333333333333) internal successors, (155), 25 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 00:24:31,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:31,054 INFO L93 Difference]: Finished difference Result 1643 states and 2022 transitions. [2023-11-29 00:24:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 00:24:31,055 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.458333333333333) internal successors, (155), 25 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 93 [2023-11-29 00:24:31,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:31,061 INFO L225 Difference]: With dead ends: 1643 [2023-11-29 00:24:31,061 INFO L226 Difference]: Without dead ends: 1639 [2023-11-29 00:24:31,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 00:24:31,063 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 1278 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:31,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 724 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-11-29 00:24:31,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2023-11-29 00:24:31,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1410. [2023-11-29 00:24:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1344 states have (on average 1.2581845238095237) internal successors, (1691), 1370 states have internal predecessors, (1691), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:24:31,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1765 transitions. [2023-11-29 00:24:31,145 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1765 transitions. Word has length 93 [2023-11-29 00:24:31,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:31,146 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 1765 transitions. [2023-11-29 00:24:31,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.458333333333333) internal successors, (155), 25 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 00:24:31,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1765 transitions. [2023-11-29 00:24:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 00:24:31,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:31,146 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:31,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 00:24:31,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 00:24:31,347 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:31,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:31,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1298429678, now seen corresponding path program 1 times [2023-11-29 00:24:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:31,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801474045] [2023-11-29 00:24:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:31,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:31,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:31,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892635625] [2023-11-29 00:24:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:31,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:31,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:31,355 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:31,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 00:24:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:31,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 00:24:31,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:24:32,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:34,431 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:24:34,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:34,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801474045] [2023-11-29 00:24:34,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:34,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892635625] [2023-11-29 00:24:34,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892635625] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:34,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:34,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2023-11-29 00:24:34,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325261786] [2023-11-29 00:24:34,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 00:24:34,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:34,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 00:24:34,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:24:34,433 INFO L87 Difference]: Start difference. First operand 1410 states and 1765 transitions. Second operand has 34 states, 33 states have (on average 4.909090909090909) internal successors, (162), 32 states have internal predecessors, (162), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 00:24:47,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:24:47,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:47,990 INFO L93 Difference]: Finished difference Result 1489 states and 1842 transitions. [2023-11-29 00:24:47,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 00:24:47,990 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.909090909090909) internal successors, (162), 32 states have internal predecessors, (162), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 94 [2023-11-29 00:24:47,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:47,994 INFO L225 Difference]: With dead ends: 1489 [2023-11-29 00:24:47,994 INFO L226 Difference]: Without dead ends: 1463 [2023-11-29 00:24:47,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=959, Invalid=3597, Unknown=0, NotChecked=0, Total=4556 [2023-11-29 00:24:47,995 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1052 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:47,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 392 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-11-29 00:24:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2023-11-29 00:24:48,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1416. [2023-11-29 00:24:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1350 states have (on average 1.2562962962962962) internal successors, (1696), 1376 states have internal predecessors, (1696), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:24:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1770 transitions. [2023-11-29 00:24:48,081 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1770 transitions. Word has length 94 [2023-11-29 00:24:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:48,082 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1770 transitions. [2023-11-29 00:24:48,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.909090909090909) internal successors, (162), 32 states have internal predecessors, (162), 5 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 00:24:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1770 transitions. [2023-11-29 00:24:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 00:24:48,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:48,083 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:48,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 00:24:48,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 00:24:48,283 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:48,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2115616630, now seen corresponding path program 1 times [2023-11-29 00:24:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:48,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850776258] [2023-11-29 00:24:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:48,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:48,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:48,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455377917] [2023-11-29 00:24:48,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:48,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:48,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:48,290 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:48,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 00:24:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:48,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:24:48,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:48,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:48,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:48,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850776258] [2023-11-29 00:24:48,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:48,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455377917] [2023-11-29 00:24:48,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455377917] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:48,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:48,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 00:24:48,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618142383] [2023-11-29 00:24:48,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:48,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:24:48,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:24:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:24:48,805 INFO L87 Difference]: Start difference. First operand 1416 states and 1770 transitions. Second operand has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:49,749 INFO L93 Difference]: Finished difference Result 1458 states and 1810 transitions. [2023-11-29 00:24:49,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:24:49,749 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 95 [2023-11-29 00:24:49,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:49,752 INFO L225 Difference]: With dead ends: 1458 [2023-11-29 00:24:49,752 INFO L226 Difference]: Without dead ends: 1457 [2023-11-29 00:24:49,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=688, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:24:49,753 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 199 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:49,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 571 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:24:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-11-29 00:24:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1431. [2023-11-29 00:24:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1365 states have (on average 1.2534798534798535) internal successors, (1711), 1391 states have internal predecessors, (1711), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:24:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1785 transitions. [2023-11-29 00:24:49,841 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1785 transitions. Word has length 95 [2023-11-29 00:24:49,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:49,841 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1785 transitions. [2023-11-29 00:24:49,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.066666666666666) internal successors, (151), 16 states have internal predecessors, (151), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:24:49,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1785 transitions. [2023-11-29 00:24:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 00:24:49,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:49,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:49,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-29 00:24:50,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 00:24:50,043 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:50,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:50,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2078295400, now seen corresponding path program 1 times [2023-11-29 00:24:50,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:50,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468508300] [2023-11-29 00:24:50,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:50,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:50,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:50,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326322987] [2023-11-29 00:24:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:50,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:50,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:50,049 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:50,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 00:24:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:50,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:24:50,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:50,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:50,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468508300] [2023-11-29 00:24:50,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:50,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326322987] [2023-11-29 00:24:50,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326322987] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:50,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:50,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 00:24:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307645439] [2023-11-29 00:24:50,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:50,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:24:50,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:24:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:24:50,967 INFO L87 Difference]: Start difference. First operand 1431 states and 1785 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:24:54,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:54,061 INFO L93 Difference]: Finished difference Result 1517 states and 1832 transitions. [2023-11-29 00:24:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:24:54,062 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 96 [2023-11-29 00:24:54,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:54,065 INFO L225 Difference]: With dead ends: 1517 [2023-11-29 00:24:54,065 INFO L226 Difference]: Without dead ends: 1515 [2023-11-29 00:24:54,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2023-11-29 00:24:54,066 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 358 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:54,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 690 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 00:24:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2023-11-29 00:24:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1429. [2023-11-29 00:24:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1365 states have (on average 1.2388278388278389) internal successors, (1691), 1389 states have internal predecessors, (1691), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:24:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1765 transitions. [2023-11-29 00:24:54,160 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1765 transitions. Word has length 96 [2023-11-29 00:24:54,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:54,161 INFO L495 AbstractCegarLoop]: Abstraction has 1429 states and 1765 transitions. [2023-11-29 00:24:54,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:24:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1765 transitions. [2023-11-29 00:24:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 00:24:54,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:54,161 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:54,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2023-11-29 00:24:54,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 00:24:54,362 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:54,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1159605914, now seen corresponding path program 1 times [2023-11-29 00:24:54,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:54,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516422678] [2023-11-29 00:24:54,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:54,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:54,371 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:54,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016116064] [2023-11-29 00:24:54,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:54,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:54,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:54,372 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:54,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 00:24:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:54,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:24:54,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 00:24:54,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:24:54,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516422678] [2023-11-29 00:24:54,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016116064] [2023-11-29 00:24:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016116064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:24:54,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:24:54,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:24:54,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754559033] [2023-11-29 00:24:54,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:24:54,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:24:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:54,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:24:54,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:24:54,496 INFO L87 Difference]: Start difference. First operand 1429 states and 1765 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:24:54,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:54,664 INFO L93 Difference]: Finished difference Result 1444 states and 1770 transitions. [2023-11-29 00:24:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:24:54,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 96 [2023-11-29 00:24:54,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:54,667 INFO L225 Difference]: With dead ends: 1444 [2023-11-29 00:24:54,667 INFO L226 Difference]: Without dead ends: 1421 [2023-11-29 00:24:54,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:24:54,668 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 36 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:54,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 176 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:24:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2023-11-29 00:24:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1411. [2023-11-29 00:24:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1347 states have (on average 1.2405345211581291) internal successors, (1671), 1371 states have internal predecessors, (1671), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:24:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1745 transitions. [2023-11-29 00:24:54,756 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1745 transitions. Word has length 96 [2023-11-29 00:24:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:54,757 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1745 transitions. [2023-11-29 00:24:54,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:24:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1745 transitions. [2023-11-29 00:24:54,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 00:24:54,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:54,757 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:54,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 00:24:54,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 00:24:54,958 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:24:54,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:54,958 INFO L85 PathProgramCache]: Analyzing trace with hash 82089066, now seen corresponding path program 1 times [2023-11-29 00:24:54,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:54,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758111646] [2023-11-29 00:24:54,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:54,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:54,964 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:54,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112902571] [2023-11-29 00:24:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:54,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:54,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:54,965 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:54,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 00:24:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:55,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 00:24:55,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:24:56,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:25:07,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:25:07,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758111646] [2023-11-29 00:25:07,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:25:07,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112902571] [2023-11-29 00:25:07,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112902571] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:25:07,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:25:07,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 00:25:07,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094139724] [2023-11-29 00:25:07,221 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:25:07,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:25:07,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:25:07,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:25:07,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=423, Unknown=2, NotChecked=0, Total=506 [2023-11-29 00:25:07,222 INFO L87 Difference]: Start difference. First operand 1411 states and 1745 transitions. Second operand has 15 states, 14 states have (on average 6.0) internal successors, (84), 15 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:25:10,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:25:10,046 INFO L93 Difference]: Finished difference Result 1456 states and 1758 transitions. [2023-11-29 00:25:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:25:10,046 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.0) internal successors, (84), 15 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 98 [2023-11-29 00:25:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:25:10,048 INFO L225 Difference]: With dead ends: 1456 [2023-11-29 00:25:10,048 INFO L226 Difference]: Without dead ends: 1455 [2023-11-29 00:25:10,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=194, Invalid=860, Unknown=2, NotChecked=0, Total=1056 [2023-11-29 00:25:10,049 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 452 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:25:10,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 482 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 00:25:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2023-11-29 00:25:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1411. [2023-11-29 00:25:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1347 states have (on average 1.2360801781737194) internal successors, (1665), 1371 states have internal predecessors, (1665), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:25:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1739 transitions. [2023-11-29 00:25:10,136 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1739 transitions. Word has length 98 [2023-11-29 00:25:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:25:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1739 transitions. [2023-11-29 00:25:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.0) internal successors, (84), 15 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:25:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1739 transitions. [2023-11-29 00:25:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 00:25:10,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:25:10,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:25:10,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 00:25:10,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:25:10,338 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:25:10,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:25:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1064445514, now seen corresponding path program 1 times [2023-11-29 00:25:10,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:25:10,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885585865] [2023-11-29 00:25:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:10,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:25:10,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:25:10,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120965683] [2023-11-29 00:25:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:25:10,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:25:10,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:25:10,344 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:25:10,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 00:25:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:25:10,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:25:10,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:25:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:25:13,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:25:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:25:15,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:25:15,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885585865] [2023-11-29 00:25:15,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:25:15,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120965683] [2023-11-29 00:25:15,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120965683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:25:15,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:25:15,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2023-11-29 00:25:15,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706471118] [2023-11-29 00:25:15,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:25:15,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:25:15,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:25:15,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:25:15,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:25:15,273 INFO L87 Difference]: Start difference. First operand 1411 states and 1739 transitions. Second operand has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:25:31,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 00:26:25,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:26:26,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:26:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:28,751 INFO L93 Difference]: Finished difference Result 1557 states and 1900 transitions. [2023-11-29 00:26:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 00:26:28,752 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 103 [2023-11-29 00:26:28,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:28,755 INFO L225 Difference]: With dead ends: 1557 [2023-11-29 00:26:28,755 INFO L226 Difference]: Without dead ends: 1556 [2023-11-29 00:26:28,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1994 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=1593, Invalid=6060, Unknown=3, NotChecked=0, Total=7656 [2023-11-29 00:26:28,756 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 766 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:28,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 430 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2307 Invalid, 1 Unknown, 0 Unchecked, 31.6s Time] [2023-11-29 00:26:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2023-11-29 00:26:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1411. [2023-11-29 00:26:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1347 states have (on average 1.2301410541945064) internal successors, (1657), 1371 states have internal predecessors, (1657), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:26:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1731 transitions. [2023-11-29 00:26:28,916 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1731 transitions. Word has length 103 [2023-11-29 00:26:28,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:28,916 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 1731 transitions. [2023-11-29 00:26:28,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 24 states have internal predecessors, (170), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1731 transitions. [2023-11-29 00:26:28,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 00:26:28,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:28,918 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:28,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 00:26:29,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 00:26:29,118 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:29,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:29,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1369125232, now seen corresponding path program 1 times [2023-11-29 00:26:29,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:29,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199407491] [2023-11-29 00:26:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:29,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:29,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:29,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128169617] [2023-11-29 00:26:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:29,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:29,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:29,130 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:29,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 00:26:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:26:29,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:26:29,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:29,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:29,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:29,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199407491] [2023-11-29 00:26:29,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:29,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128169617] [2023-11-29 00:26:29,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128169617] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:26:29,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:26:29,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:26:29,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349103358] [2023-11-29 00:26:29,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:29,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:26:29,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:26:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:26:29,751 INFO L87 Difference]: Start difference. First operand 1411 states and 1731 transitions. Second operand has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:30,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:30,974 INFO L93 Difference]: Finished difference Result 2281 states and 2749 transitions. [2023-11-29 00:26:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 00:26:30,974 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 104 [2023-11-29 00:26:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:30,978 INFO L225 Difference]: With dead ends: 2281 [2023-11-29 00:26:30,978 INFO L226 Difference]: Without dead ends: 1920 [2023-11-29 00:26:30,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:26:30,980 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 481 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:30,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 617 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:26:30,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2023-11-29 00:26:31,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1560. [2023-11-29 00:26:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1490 states have (on average 1.238255033557047) internal successors, (1845), 1514 states have internal predecessors, (1845), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 00:26:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 1931 transitions. [2023-11-29 00:26:31,151 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 1931 transitions. Word has length 104 [2023-11-29 00:26:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:31,151 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 1931 transitions. [2023-11-29 00:26:31,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.363636363636363) internal successors, (169), 12 states have internal predecessors, (169), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 1931 transitions. [2023-11-29 00:26:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 00:26:31,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:31,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:31,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 00:26:31,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 00:26:31,353 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:31,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:31,353 INFO L85 PathProgramCache]: Analyzing trace with hash -506790680, now seen corresponding path program 1 times [2023-11-29 00:26:31,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:31,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084075578] [2023-11-29 00:26:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:31,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:31,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070820122] [2023-11-29 00:26:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:31,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:31,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:31,361 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:31,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 00:26:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:26:31,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:26:31,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:32,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 5 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:32,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:32,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084075578] [2023-11-29 00:26:32,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:32,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070820122] [2023-11-29 00:26:32,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070820122] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:26:32,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:26:32,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2023-11-29 00:26:32,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424102691] [2023-11-29 00:26:32,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:32,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:26:32,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:32,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:26:32,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:26:32,939 INFO L87 Difference]: Start difference. First operand 1560 states and 1931 transitions. Second operand has 20 states, 19 states have (on average 9.0) internal successors, (171), 20 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:36,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:36,560 INFO L93 Difference]: Finished difference Result 2397 states and 2947 transitions. [2023-11-29 00:26:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 00:26:36,560 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.0) internal successors, (171), 20 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 105 [2023-11-29 00:26:36,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:36,564 INFO L225 Difference]: With dead ends: 2397 [2023-11-29 00:26:36,564 INFO L226 Difference]: Without dead ends: 2396 [2023-11-29 00:26:36,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=441, Invalid=1815, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:26:36,565 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 610 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:36,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 544 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 00:26:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2023-11-29 00:26:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2033. [2023-11-29 00:26:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1947 states have (on average 1.2542372881355932) internal successors, (2442), 1971 states have internal predecessors, (2442), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 00:26:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2560 transitions. [2023-11-29 00:26:36,817 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2560 transitions. Word has length 105 [2023-11-29 00:26:36,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:36,817 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 2560 transitions. [2023-11-29 00:26:36,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.0) internal successors, (171), 20 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2560 transitions. [2023-11-29 00:26:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 00:26:36,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:36,819 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:36,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 00:26:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:37,019 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:37,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash 729925260, now seen corresponding path program 2 times [2023-11-29 00:26:37,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:37,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979453230] [2023-11-29 00:26:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:37,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875330978] [2023-11-29 00:26:37,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:26:37,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:37,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:37,029 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:37,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 00:26:37,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:26:37,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:26:37,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:26:37,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:37,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:37,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:37,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979453230] [2023-11-29 00:26:37,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:37,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875330978] [2023-11-29 00:26:37,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875330978] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:26:37,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:26:37,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:26:37,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070261315] [2023-11-29 00:26:37,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:37,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:26:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:26:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:26:37,619 INFO L87 Difference]: Start difference. First operand 2033 states and 2560 transitions. Second operand has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:39,393 INFO L93 Difference]: Finished difference Result 2610 states and 3183 transitions. [2023-11-29 00:26:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 00:26:39,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 105 [2023-11-29 00:26:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:39,397 INFO L225 Difference]: With dead ends: 2610 [2023-11-29 00:26:39,397 INFO L226 Difference]: Without dead ends: 2121 [2023-11-29 00:26:39,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:26:39,398 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 444 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:39,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 715 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 00:26:39,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2023-11-29 00:26:39,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 1902. [2023-11-29 00:26:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1821 states have (on average 1.2520593080724876) internal successors, (2280), 1845 states have internal predecessors, (2280), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:26:39,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2388 transitions. [2023-11-29 00:26:39,628 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2388 transitions. Word has length 105 [2023-11-29 00:26:39,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:39,629 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2388 transitions. [2023-11-29 00:26:39,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.545454545454545) internal successors, (171), 12 states have internal predecessors, (171), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:26:39,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2388 transitions. [2023-11-29 00:26:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 00:26:39,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:39,630 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:39,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 00:26:39,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:39,830 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:39,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1257976168, now seen corresponding path program 2 times [2023-11-29 00:26:39,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:39,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359101510] [2023-11-29 00:26:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:39,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:39,839 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:39,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521539636] [2023-11-29 00:26:39,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:26:39,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:39,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:39,841 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:39,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 00:26:39,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:26:39,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:26:39,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 00:26:39,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:26:41,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:43,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359101510] [2023-11-29 00:26:43,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521539636] [2023-11-29 00:26:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521539636] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:26:43,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:26:43,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 00:26:43,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667774859] [2023-11-29 00:26:43,893 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:43,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:26:43,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:43,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:26:43,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:26:43,894 INFO L87 Difference]: Start difference. First operand 1902 states and 2388 transitions. Second operand has 17 states, 16 states have (on average 6.0) internal successors, (96), 17 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:26:47,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:47,248 INFO L93 Difference]: Finished difference Result 1923 states and 2402 transitions. [2023-11-29 00:26:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 00:26:47,249 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 17 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 107 [2023-11-29 00:26:47,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:47,252 INFO L225 Difference]: With dead ends: 1923 [2023-11-29 00:26:47,252 INFO L226 Difference]: Without dead ends: 1922 [2023-11-29 00:26:47,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:26:47,253 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 309 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:47,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 555 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 00:26:47,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2023-11-29 00:26:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1902. [2023-11-29 00:26:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1821 states have (on average 1.2515101592531577) internal successors, (2279), 1845 states have internal predecessors, (2279), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:26:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2387 transitions. [2023-11-29 00:26:47,440 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2387 transitions. Word has length 107 [2023-11-29 00:26:47,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:47,440 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2387 transitions. [2023-11-29 00:26:47,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 17 states have internal predecessors, (96), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:26:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2387 transitions. [2023-11-29 00:26:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 00:26:47,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:47,441 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:47,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 00:26:47,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:47,641 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:47,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2029284518, now seen corresponding path program 2 times [2023-11-29 00:26:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529150926] [2023-11-29 00:26:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:47,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:47,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303751588] [2023-11-29 00:26:47,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:26:47,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:47,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:47,650 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:47,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 00:26:47,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:26:47,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:26:47,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:26:47,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:26:48,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:48,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529150926] [2023-11-29 00:26:48,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303751588] [2023-11-29 00:26:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303751588] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:26:48,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:26:48,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:26:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276281589] [2023-11-29 00:26:48,991 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:48,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:26:48,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:48,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:26:48,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:26:48,992 INFO L87 Difference]: Start difference. First operand 1902 states and 2387 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:26:54,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:26:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:55,982 INFO L93 Difference]: Finished difference Result 1920 states and 2401 transitions. [2023-11-29 00:26:55,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:26:55,983 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 109 [2023-11-29 00:26:55,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:55,987 INFO L225 Difference]: With dead ends: 1920 [2023-11-29 00:26:55,987 INFO L226 Difference]: Without dead ends: 1919 [2023-11-29 00:26:55,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:26:55,988 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 78 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:55,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 417 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1068 Invalid, 4 Unknown, 0 Unchecked, 6.6s Time] [2023-11-29 00:26:55,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-11-29 00:26:56,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1902. [2023-11-29 00:26:56,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1821 states have (on average 1.2509610104338276) internal successors, (2278), 1845 states have internal predecessors, (2278), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:26:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2386 transitions. [2023-11-29 00:26:56,199 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2386 transitions. Word has length 109 [2023-11-29 00:26:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:56,199 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2386 transitions. [2023-11-29 00:26:56,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:26:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2386 transitions. [2023-11-29 00:26:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 00:26:56,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:56,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:56,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 00:26:56,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 00:26:56,401 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:56,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1574299393, now seen corresponding path program 1 times [2023-11-29 00:26:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:56,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146929064] [2023-11-29 00:26:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:56,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:56,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:56,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778835986] [2023-11-29 00:26:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:56,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:56,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:56,408 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:56,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 00:26:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:26:56,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:26:56,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:26:56,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:26:57,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:57,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146929064] [2023-11-29 00:26:57,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:57,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778835986] [2023-11-29 00:26:57,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778835986] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:26:57,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:26:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:26:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400037077] [2023-11-29 00:26:57,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:57,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:26:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:57,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:26:57,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:26:57,101 INFO L87 Difference]: Start difference. First operand 1902 states and 2386 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 00:26:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:26:57,972 INFO L93 Difference]: Finished difference Result 2177 states and 2684 transitions. [2023-11-29 00:26:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:26:57,973 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 113 [2023-11-29 00:26:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:26:57,975 INFO L225 Difference]: With dead ends: 2177 [2023-11-29 00:26:57,975 INFO L226 Difference]: Without dead ends: 2176 [2023-11-29 00:26:57,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:26:57,975 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 807 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:26:57,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 367 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:26:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2023-11-29 00:26:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 1853. [2023-11-29 00:26:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1774 states have (on average 1.241826381059752) internal successors, (2203), 1797 states have internal predecessors, (2203), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 00:26:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2309 transitions. [2023-11-29 00:26:58,247 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2309 transitions. Word has length 113 [2023-11-29 00:26:58,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:26:58,247 INFO L495 AbstractCegarLoop]: Abstraction has 1853 states and 2309 transitions. [2023-11-29 00:26:58,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 00:26:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2309 transitions. [2023-11-29 00:26:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 00:26:58,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:26:58,249 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:58,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 00:26:58,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:58,449 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:26:58,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:58,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1814693225, now seen corresponding path program 1 times [2023-11-29 00:26:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:58,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692352070] [2023-11-29 00:26:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:58,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:58,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:26:58,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443292235] [2023-11-29 00:26:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:58,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:58,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:58,460 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:58,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 00:26:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:26:58,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:26:58,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:26:58,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:26:59,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:59,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692352070] [2023-11-29 00:26:59,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:26:59,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443292235] [2023-11-29 00:26:59,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443292235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:26:59,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:26:59,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 00:26:59,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571749376] [2023-11-29 00:26:59,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:59,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:26:59,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:59,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:26:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:26:59,283 INFO L87 Difference]: Start difference. First operand 1853 states and 2309 transitions. Second operand has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:00,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:00,173 INFO L93 Difference]: Finished difference Result 1885 states and 2338 transitions. [2023-11-29 00:27:00,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:27:00,174 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 113 [2023-11-29 00:27:00,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:00,176 INFO L225 Difference]: With dead ends: 1885 [2023-11-29 00:27:00,177 INFO L226 Difference]: Without dead ends: 1849 [2023-11-29 00:27:00,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:27:00,177 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 111 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:00,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 587 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:27:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2023-11-29 00:27:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1847. [2023-11-29 00:27:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1768 states have (on average 1.240950226244344) internal successors, (2194), 1791 states have internal predecessors, (2194), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 00:27:00,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2300 transitions. [2023-11-29 00:27:00,366 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2300 transitions. Word has length 113 [2023-11-29 00:27:00,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:00,366 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2300 transitions. [2023-11-29 00:27:00,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:00,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2300 transitions. [2023-11-29 00:27:00,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 00:27:00,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:00,367 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:00,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 00:27:00,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:00,568 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:00,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash -15507615, now seen corresponding path program 2 times [2023-11-29 00:27:00,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:00,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498613759] [2023-11-29 00:27:00,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:00,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:00,573 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:00,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429829221] [2023-11-29 00:27:00,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:27:00,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:00,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:00,574 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:00,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 00:27:00,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:27:00,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:27:00,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:27:00,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 96 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 00:27:01,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:01,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498613759] [2023-11-29 00:27:01,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429829221] [2023-11-29 00:27:01,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429829221] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:27:01,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:27:01,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 00:27:01,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058110215] [2023-11-29 00:27:01,191 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:01,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:27:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:01,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:27:01,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:27:01,193 INFO L87 Difference]: Start difference. First operand 1847 states and 2300 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:27:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:01,892 INFO L93 Difference]: Finished difference Result 1970 states and 2417 transitions. [2023-11-29 00:27:01,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:27:01,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 118 [2023-11-29 00:27:01,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:01,895 INFO L225 Difference]: With dead ends: 1970 [2023-11-29 00:27:01,895 INFO L226 Difference]: Without dead ends: 1968 [2023-11-29 00:27:01,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:27:01,895 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 311 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:01,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 361 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:27:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2023-11-29 00:27:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1859. [2023-11-29 00:27:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1780 states have (on average 1.2382022471910112) internal successors, (2204), 1803 states have internal predecessors, (2204), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-29 00:27:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2310 transitions. [2023-11-29 00:27:02,093 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2310 transitions. Word has length 118 [2023-11-29 00:27:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:02,093 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2310 transitions. [2023-11-29 00:27:02,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:27:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2310 transitions. [2023-11-29 00:27:02,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 00:27:02,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:02,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:02,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2023-11-29 00:27:02,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:02,295 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:02,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:02,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1839062559, now seen corresponding path program 1 times [2023-11-29 00:27:02,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:02,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982087012] [2023-11-29 00:27:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:02,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:02,304 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:02,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482134265] [2023-11-29 00:27:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:02,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:02,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:02,305 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:02,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 00:27:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:02,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:27:02,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:02,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:03,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982087012] [2023-11-29 00:27:03,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:03,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482134265] [2023-11-29 00:27:03,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482134265] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:03,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:03,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:27:03,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683501623] [2023-11-29 00:27:03,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:03,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:27:03,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:03,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:27:03,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:27:03,188 INFO L87 Difference]: Start difference. First operand 1859 states and 2310 transitions. Second operand has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:04,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:04,750 INFO L93 Difference]: Finished difference Result 2258 states and 2760 transitions. [2023-11-29 00:27:04,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 00:27:04,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 119 [2023-11-29 00:27:04,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:04,752 INFO L225 Difference]: With dead ends: 2258 [2023-11-29 00:27:04,752 INFO L226 Difference]: Without dead ends: 2257 [2023-11-29 00:27:04,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:27:04,752 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 564 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:04,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 502 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:27:04,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2023-11-29 00:27:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 1995. [2023-11-29 00:27:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1912 states have (on average 1.2432008368200838) internal successors, (2377), 1935 states have internal predecessors, (2377), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 00:27:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2491 transitions. [2023-11-29 00:27:04,961 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2491 transitions. Word has length 119 [2023-11-29 00:27:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:04,962 INFO L495 AbstractCegarLoop]: Abstraction has 1995 states and 2491 transitions. [2023-11-29 00:27:04,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.181818181818183) internal successors, (189), 12 states have internal predecessors, (189), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2491 transitions. [2023-11-29 00:27:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 00:27:04,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:04,963 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:04,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 00:27:05,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2023-11-29 00:27:05,163 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:05,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash -707769978, now seen corresponding path program 1 times [2023-11-29 00:27:05,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:05,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552359748] [2023-11-29 00:27:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:05,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:05,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379421765] [2023-11-29 00:27:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:05,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:05,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:05,170 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:05,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 00:27:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:05,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:27:05,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 00:27:05,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 00:27:05,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:05,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552359748] [2023-11-29 00:27:05,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:05,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379421765] [2023-11-29 00:27:05,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379421765] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:05,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:05,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:27:05,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200026431] [2023-11-29 00:27:05,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:05,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:27:05,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:27:05,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:27:05,427 INFO L87 Difference]: Start difference. First operand 1995 states and 2491 transitions. Second operand has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 10 states have internal predecessors, (145), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:27:06,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:06,085 INFO L93 Difference]: Finished difference Result 2876 states and 3581 transitions. [2023-11-29 00:27:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:27:06,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 10 states have internal predecessors, (145), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 120 [2023-11-29 00:27:06,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:06,088 INFO L225 Difference]: With dead ends: 2876 [2023-11-29 00:27:06,088 INFO L226 Difference]: Without dead ends: 2875 [2023-11-29 00:27:06,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:27:06,089 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 194 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:06,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 834 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:27:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2023-11-29 00:27:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2645. [2023-11-29 00:27:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2544 states have (on average 1.2523584905660377) internal successors, (3186), 2567 states have internal predecessors, (3186), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 00:27:06,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3336 transitions. [2023-11-29 00:27:06,438 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3336 transitions. Word has length 120 [2023-11-29 00:27:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:06,439 INFO L495 AbstractCegarLoop]: Abstraction has 2645 states and 3336 transitions. [2023-11-29 00:27:06,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 10 states have internal predecessors, (145), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:27:06,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3336 transitions. [2023-11-29 00:27:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 00:27:06,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:06,440 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:06,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 00:27:06,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:06,640 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:06,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:06,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1176364586, now seen corresponding path program 1 times [2023-11-29 00:27:06,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:06,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775038665] [2023-11-29 00:27:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:06,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:06,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:06,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904572072] [2023-11-29 00:27:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:06,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:06,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:06,652 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:06,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 00:27:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:06,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:27:06,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:07,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:07,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:07,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775038665] [2023-11-29 00:27:07,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:07,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904572072] [2023-11-29 00:27:07,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904572072] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:07,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:07,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:27:07,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433315269] [2023-11-29 00:27:07,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:07,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:27:07,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:07,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:27:07,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:27:07,415 INFO L87 Difference]: Start difference. First operand 2645 states and 3336 transitions. Second operand has 12 states, 11 states have (on average 17.818181818181817) internal successors, (196), 12 states have internal predecessors, (196), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 00:27:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:08,661 INFO L93 Difference]: Finished difference Result 2701 states and 3382 transitions. [2023-11-29 00:27:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:27:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.818181818181817) internal successors, (196), 12 states have internal predecessors, (196), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 120 [2023-11-29 00:27:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:08,665 INFO L225 Difference]: With dead ends: 2701 [2023-11-29 00:27:08,665 INFO L226 Difference]: Without dead ends: 2700 [2023-11-29 00:27:08,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:27:08,666 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 629 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:08,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 412 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:27:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-11-29 00:27:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2644. [2023-11-29 00:27:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2544 states have (on average 1.2382075471698113) internal successors, (3150), 2566 states have internal predecessors, (3150), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 00:27:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3300 transitions. [2023-11-29 00:27:08,944 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3300 transitions. Word has length 120 [2023-11-29 00:27:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:08,944 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3300 transitions. [2023-11-29 00:27:08,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.818181818181817) internal successors, (196), 12 states have internal predecessors, (196), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 00:27:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3300 transitions. [2023-11-29 00:27:08,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 00:27:08,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:08,945 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:08,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2023-11-29 00:27:09,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:09,146 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:09,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:09,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2109607269, now seen corresponding path program 2 times [2023-11-29 00:27:09,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:09,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271565963] [2023-11-29 00:27:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:09,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:09,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379816242] [2023-11-29 00:27:09,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:27:09,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:09,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:09,155 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:09,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 00:27:09,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:27:09,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:27:09,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:27:09,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 3 proven. 108 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 00:27:09,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:09,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:09,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271565963] [2023-11-29 00:27:09,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:09,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379816242] [2023-11-29 00:27:09,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379816242] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:27:09,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:27:09,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 00:27:09,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112331729] [2023-11-29 00:27:09,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:09,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:27:09,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:09,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:27:09,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:27:09,967 INFO L87 Difference]: Start difference. First operand 2644 states and 3300 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:27:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:11,171 INFO L93 Difference]: Finished difference Result 2770 states and 3428 transitions. [2023-11-29 00:27:11,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:27:11,171 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 122 [2023-11-29 00:27:11,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:11,173 INFO L225 Difference]: With dead ends: 2770 [2023-11-29 00:27:11,174 INFO L226 Difference]: Without dead ends: 2768 [2023-11-29 00:27:11,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:27:11,174 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 570 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:11,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 281 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:27:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2023-11-29 00:27:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 2644. [2023-11-29 00:27:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 2544 states have (on average 1.23624213836478) internal successors, (3145), 2566 states have internal predecessors, (3145), 75 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-29 00:27:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3295 transitions. [2023-11-29 00:27:11,489 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3295 transitions. Word has length 122 [2023-11-29 00:27:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:11,489 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3295 transitions. [2023-11-29 00:27:11,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 13 states have internal predecessors, (106), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:27:11,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3295 transitions. [2023-11-29 00:27:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 00:27:11,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:11,491 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:11,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2023-11-29 00:27:11,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:11,692 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:11,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:11,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1087371409, now seen corresponding path program 1 times [2023-11-29 00:27:11,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:11,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107068157] [2023-11-29 00:27:11,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:11,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:11,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:11,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [353014437] [2023-11-29 00:27:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:11,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:11,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:11,702 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:11,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 00:27:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:11,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:27:11,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:12,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 22 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:12,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:12,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107068157] [2023-11-29 00:27:12,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:12,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353014437] [2023-11-29 00:27:12,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353014437] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:12,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:12,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 00:27:12,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480050174] [2023-11-29 00:27:12,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:12,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:27:12,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:27:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:27:12,734 INFO L87 Difference]: Start difference. First operand 2644 states and 3295 transitions. Second operand has 24 states, 23 states have (on average 9.347826086956522) internal successors, (215), 24 states have internal predecessors, (215), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:14,775 INFO L93 Difference]: Finished difference Result 2890 states and 3571 transitions. [2023-11-29 00:27:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 00:27:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 9.347826086956522) internal successors, (215), 24 states have internal predecessors, (215), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 132 [2023-11-29 00:27:14,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:14,778 INFO L225 Difference]: With dead ends: 2890 [2023-11-29 00:27:14,779 INFO L226 Difference]: Without dead ends: 2889 [2023-11-29 00:27:14,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=369, Invalid=2181, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 00:27:14,780 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 374 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:14,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1159 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 00:27:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2023-11-29 00:27:15,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2799. [2023-11-29 00:27:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2695 states have (on average 1.2404452690166976) internal successors, (3343), 2717 states have internal predecessors, (3343), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 00:27:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3501 transitions. [2023-11-29 00:27:15,141 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3501 transitions. Word has length 132 [2023-11-29 00:27:15,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:15,142 INFO L495 AbstractCegarLoop]: Abstraction has 2799 states and 3501 transitions. [2023-11-29 00:27:15,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 9.347826086956522) internal successors, (215), 24 states have internal predecessors, (215), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:15,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3501 transitions. [2023-11-29 00:27:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 00:27:15,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:15,143 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:15,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 00:27:15,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:15,344 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:15,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1124290319, now seen corresponding path program 2 times [2023-11-29 00:27:15,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:15,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396321782] [2023-11-29 00:27:15,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:15,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:15,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:15,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342517656] [2023-11-29 00:27:15,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:27:15,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:15,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:15,355 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:15,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 00:27:15,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:27:15,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:27:15,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 00:27:15,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 00:27:16,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:16,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:16,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396321782] [2023-11-29 00:27:16,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:16,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342517656] [2023-11-29 00:27:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342517656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:27:16,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:27:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 00:27:16,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333092903] [2023-11-29 00:27:16,523 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:16,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:27:16,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:16,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:27:16,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:27:16,524 INFO L87 Difference]: Start difference. First operand 2799 states and 3501 transitions. Second operand has 17 states, 16 states have (on average 7.25) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:27:18,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:18,205 INFO L93 Difference]: Finished difference Result 3079 states and 3776 transitions. [2023-11-29 00:27:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 00:27:18,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.25) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 132 [2023-11-29 00:27:18,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:18,208 INFO L225 Difference]: With dead ends: 3079 [2023-11-29 00:27:18,208 INFO L226 Difference]: Without dead ends: 3077 [2023-11-29 00:27:18,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=383, Invalid=1339, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 00:27:18,209 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 649 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:18,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1396 Invalid, 2200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:27:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2023-11-29 00:27:18,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2865. [2023-11-29 00:27:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2761 states have (on average 1.2350597609561753) internal successors, (3410), 2783 states have internal predecessors, (3410), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 00:27:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 3568 transitions. [2023-11-29 00:27:18,573 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 3568 transitions. Word has length 132 [2023-11-29 00:27:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:18,573 INFO L495 AbstractCegarLoop]: Abstraction has 2865 states and 3568 transitions. [2023-11-29 00:27:18,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.25) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 00:27:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 3568 transitions. [2023-11-29 00:27:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 00:27:18,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:18,575 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:18,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 00:27:18,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:18,775 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:18,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:18,776 INFO L85 PathProgramCache]: Analyzing trace with hash 651224865, now seen corresponding path program 1 times [2023-11-29 00:27:18,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:18,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628454361] [2023-11-29 00:27:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:18,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:18,784 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:18,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830022566] [2023-11-29 00:27:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:18,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:18,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:18,785 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:18,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 00:27:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:18,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:27:18,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:19,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:19,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628454361] [2023-11-29 00:27:19,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:19,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830022566] [2023-11-29 00:27:19,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830022566] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:19,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:19,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 00:27:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824950134] [2023-11-29 00:27:19,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:19,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:27:19,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:27:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:27:19,712 INFO L87 Difference]: Start difference. First operand 2865 states and 3568 transitions. Second operand has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:21,052 INFO L93 Difference]: Finished difference Result 2872 states and 3574 transitions. [2023-11-29 00:27:21,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 00:27:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 133 [2023-11-29 00:27:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:21,055 INFO L225 Difference]: With dead ends: 2872 [2023-11-29 00:27:21,055 INFO L226 Difference]: Without dead ends: 2849 [2023-11-29 00:27:21,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:27:21,056 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 96 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:21,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 641 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:27:21,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2023-11-29 00:27:21,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2849. [2023-11-29 00:27:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 2745 states have (on average 1.2360655737704918) internal successors, (3393), 2767 states have internal predecessors, (3393), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 00:27:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 3551 transitions. [2023-11-29 00:27:21,394 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 3551 transitions. Word has length 133 [2023-11-29 00:27:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:21,394 INFO L495 AbstractCegarLoop]: Abstraction has 2849 states and 3551 transitions. [2023-11-29 00:27:21,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 18 states have internal predecessors, (195), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:27:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 3551 transitions. [2023-11-29 00:27:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 00:27:21,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:21,396 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:21,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2023-11-29 00:27:21,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 00:27:21,596 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:21,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:21,596 INFO L85 PathProgramCache]: Analyzing trace with hash -233726485, now seen corresponding path program 1 times [2023-11-29 00:27:21,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:21,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641314853] [2023-11-29 00:27:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:21,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:21,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:21,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164189438] [2023-11-29 00:27:21,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:21,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:21,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:21,603 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:21,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 00:27:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:27:21,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:27:21,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:21,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:22,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641314853] [2023-11-29 00:27:22,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:22,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164189438] [2023-11-29 00:27:22,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164189438] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:22,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:22,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-29 00:27:22,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671173842] [2023-11-29 00:27:22,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:22,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:27:22,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:22,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:27:22,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:27:22,158 INFO L87 Difference]: Start difference. First operand 2849 states and 3551 transitions. Second operand has 17 states, 16 states have (on average 10.25) internal successors, (164), 17 states have internal predecessors, (164), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:27:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:27:23,366 INFO L93 Difference]: Finished difference Result 2863 states and 3564 transitions. [2023-11-29 00:27:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 00:27:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.25) internal successors, (164), 17 states have internal predecessors, (164), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 133 [2023-11-29 00:27:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:27:23,369 INFO L225 Difference]: With dead ends: 2863 [2023-11-29 00:27:23,369 INFO L226 Difference]: Without dead ends: 2862 [2023-11-29 00:27:23,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:27:23,370 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 253 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:27:23,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 523 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:27:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2023-11-29 00:27:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2854. [2023-11-29 00:27:23,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2750 states have (on average 1.2356363636363636) internal successors, (3398), 2772 states have internal predecessors, (3398), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 00:27:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 3556 transitions. [2023-11-29 00:27:23,735 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 3556 transitions. Word has length 133 [2023-11-29 00:27:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:27:23,735 INFO L495 AbstractCegarLoop]: Abstraction has 2854 states and 3556 transitions. [2023-11-29 00:27:23,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.25) internal successors, (164), 17 states have internal predecessors, (164), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:27:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 3556 transitions. [2023-11-29 00:27:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 00:27:23,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:27:23,737 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:27:23,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2023-11-29 00:27:23,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 00:27:23,937 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:27:23,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:27:23,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1668941835, now seen corresponding path program 2 times [2023-11-29 00:27:23,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:27:23,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536247906] [2023-11-29 00:27:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:27:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:27:23,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:27:23,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624277721] [2023-11-29 00:27:23,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:27:23,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:27:23,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:27:23,947 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:27:23,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 00:27:24,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:27:24,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:27:24,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 00:27:24,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:27:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:24,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:27:29,521 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:27:29,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:27:29,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536247906] [2023-11-29 00:27:29,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:27:29,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624277721] [2023-11-29 00:27:29,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624277721] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:27:29,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:27:29,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-11-29 00:27:29,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017446715] [2023-11-29 00:27:29,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:27:29,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 00:27:29,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:27:29,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 00:27:29,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:27:29,524 INFO L87 Difference]: Start difference. First operand 2854 states and 3556 transitions. Second operand has 21 states, 20 states have (on average 11.4) internal successors, (228), 21 states have internal predecessors, (228), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 00:27:44,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:27:50,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:28:17,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:28:36,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:36,298 INFO L93 Difference]: Finished difference Result 5476 states and 6914 transitions. [2023-11-29 00:28:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 00:28:36,299 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 11.4) internal successors, (228), 21 states have internal predecessors, (228), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 136 [2023-11-29 00:28:36,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:28:36,303 INFO L225 Difference]: With dead ends: 5476 [2023-11-29 00:28:36,303 INFO L226 Difference]: Without dead ends: 5474 [2023-11-29 00:28:36,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=550, Invalid=1520, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 00:28:36,305 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1762 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:28:36,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 1388 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1892 Invalid, 0 Unknown, 0 Unchecked, 60.6s Time] [2023-11-29 00:28:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2023-11-29 00:28:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 4781. [2023-11-29 00:28:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 4613 states have (on average 1.243442445263386) internal successors, (5736), 4635 states have internal predecessors, (5736), 143 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 00:28:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 6022 transitions. [2023-11-29 00:28:36,975 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 6022 transitions. Word has length 136 [2023-11-29 00:28:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:28:36,976 INFO L495 AbstractCegarLoop]: Abstraction has 4781 states and 6022 transitions. [2023-11-29 00:28:36,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 11.4) internal successors, (228), 21 states have internal predecessors, (228), 8 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2023-11-29 00:28:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 6022 transitions. [2023-11-29 00:28:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 00:28:36,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:28:36,977 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:28:36,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 00:28:37,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 00:28:37,177 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:28:37,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:37,178 INFO L85 PathProgramCache]: Analyzing trace with hash -803558943, now seen corresponding path program 1 times [2023-11-29 00:28:37,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:37,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842386631] [2023-11-29 00:28:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:37,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:37,187 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:28:37,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978033058] [2023-11-29 00:28:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:37,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:28:37,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:37,189 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:28:37,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 00:28:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:37,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:28:37,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:28:37,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:28:37,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842386631] [2023-11-29 00:28:37,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:28:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978033058] [2023-11-29 00:28:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978033058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:28:37,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:28:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:28:37,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685751864] [2023-11-29 00:28:37,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:28:37,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:28:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:37,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:28:37,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:28:37,442 INFO L87 Difference]: Start difference. First operand 4781 states and 6022 transitions. Second operand has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:28:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:38,275 INFO L93 Difference]: Finished difference Result 4844 states and 6074 transitions. [2023-11-29 00:28:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:28:38,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 136 [2023-11-29 00:28:38,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:28:38,280 INFO L225 Difference]: With dead ends: 4844 [2023-11-29 00:28:38,280 INFO L226 Difference]: Without dead ends: 4843 [2023-11-29 00:28:38,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:28:38,281 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 156 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:28:38,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 483 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:28:38,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2023-11-29 00:28:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4499. [2023-11-29 00:28:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4340 states have (on average 1.2426267281105992) internal successors, (5393), 4362 states have internal predecessors, (5393), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2023-11-29 00:28:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 5661 transitions. [2023-11-29 00:28:38,900 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 5661 transitions. Word has length 136 [2023-11-29 00:28:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:28:38,900 INFO L495 AbstractCegarLoop]: Abstraction has 4499 states and 5661 transitions. [2023-11-29 00:28:38,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 8 states have internal predecessors, (117), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:28:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 5661 transitions. [2023-11-29 00:28:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 00:28:38,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:28:38,901 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:28:38,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 00:28:39,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 00:28:39,102 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:28:39,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 859476719, now seen corresponding path program 1 times [2023-11-29 00:28:39,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:39,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493698314] [2023-11-29 00:28:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:39,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:28:39,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584970509] [2023-11-29 00:28:39,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:39,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:28:39,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:39,111 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:28:39,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 00:28:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:28:39,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 00:28:39,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:40,074 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 00:28:40,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:28:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 00:28:40,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:40,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493698314] [2023-11-29 00:28:40,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:28:40,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584970509] [2023-11-29 00:28:40,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584970509] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:28:40,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:28:40,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-11-29 00:28:40,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543185992] [2023-11-29 00:28:40,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:28:40,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 00:28:40,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 00:28:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=920, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 00:28:40,804 INFO L87 Difference]: Start difference. First operand 4499 states and 5661 transitions. Second operand has 33 states, 32 states have (on average 7.1875) internal successors, (230), 33 states have internal predecessors, (230), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:28:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:48,706 INFO L93 Difference]: Finished difference Result 4815 states and 6014 transitions. [2023-11-29 00:28:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 00:28:48,707 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 7.1875) internal successors, (230), 33 states have internal predecessors, (230), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 137 [2023-11-29 00:28:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:28:48,711 INFO L225 Difference]: With dead ends: 4815 [2023-11-29 00:28:48,711 INFO L226 Difference]: Without dead ends: 4778 [2023-11-29 00:28:48,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2092 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1336, Invalid=6674, Unknown=0, NotChecked=0, Total=8010 [2023-11-29 00:28:48,713 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1442 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:28:48,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 694 Invalid, 3253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 00:28:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2023-11-29 00:28:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 4674. [2023-11-29 00:28:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4674 states, 4511 states have (on average 1.2445134116603858) internal successors, (5614), 4533 states have internal predecessors, (5614), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-29 00:28:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4674 states to 4674 states and 5890 transitions. [2023-11-29 00:28:49,408 INFO L78 Accepts]: Start accepts. Automaton has 4674 states and 5890 transitions. Word has length 137 [2023-11-29 00:28:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:28:49,409 INFO L495 AbstractCegarLoop]: Abstraction has 4674 states and 5890 transitions. [2023-11-29 00:28:49,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 7.1875) internal successors, (230), 33 states have internal predecessors, (230), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:28:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4674 states and 5890 transitions. [2023-11-29 00:28:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 00:28:49,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:28:49,410 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:28:49,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 00:28:49,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:28:49,611 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:28:49,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash 594040203, now seen corresponding path program 2 times [2023-11-29 00:28:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:49,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983156114] [2023-11-29 00:28:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:49,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:49,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:28:49,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225266597] [2023-11-29 00:28:49,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:28:49,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:28:49,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:49,620 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:28:49,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 00:28:49,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:28:49,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:28:49,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:28:49,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 8 proven. 126 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:28:50,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:28:50,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:50,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983156114] [2023-11-29 00:28:50,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:28:50,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225266597] [2023-11-29 00:28:50,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225266597] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:28:50,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:28:50,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:28:50,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598426846] [2023-11-29 00:28:50,973 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:28:50,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:28:50,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:50,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:28:50,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:28:50,974 INFO L87 Difference]: Start difference. First operand 4674 states and 5890 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:28:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:28:53,740 INFO L93 Difference]: Finished difference Result 5218 states and 6577 transitions. [2023-11-29 00:28:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:28:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 140 [2023-11-29 00:28:53,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:28:53,746 INFO L225 Difference]: With dead ends: 5218 [2023-11-29 00:28:53,746 INFO L226 Difference]: Without dead ends: 5217 [2023-11-29 00:28:53,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:28:53,747 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 159 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:28:53,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 618 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1327 Invalid, 1 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:28:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5217 states. [2023-11-29 00:28:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5217 to 5080. [2023-11-29 00:28:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 4904 states have (on average 1.2434747145187601) internal successors, (6098), 4926 states have internal predecessors, (6098), 151 states have call successors, (151), 2 states have call predecessors, (151), 2 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2023-11-29 00:28:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 6400 transitions. [2023-11-29 00:28:54,383 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 6400 transitions. Word has length 140 [2023-11-29 00:28:54,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:28:54,384 INFO L495 AbstractCegarLoop]: Abstraction has 5080 states and 6400 transitions. [2023-11-29 00:28:54,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 00:28:54,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 6400 transitions. [2023-11-29 00:28:54,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 00:28:54,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:28:54,385 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:28:54,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 00:28:54,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:28:54,586 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:28:54,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:28:54,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1235377195, now seen corresponding path program 2 times [2023-11-29 00:28:54,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:28:54,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429697748] [2023-11-29 00:28:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:28:54,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:28:54,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:28:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660825693] [2023-11-29 00:28:54,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:28:54,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:28:54,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:28:54,594 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:28:54,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 00:28:54,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:28:54,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:28:54,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:28:54,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:28:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 137 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:28:55,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:28:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 137 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:28:56,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:28:56,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429697748] [2023-11-29 00:28:56,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:28:56,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660825693] [2023-11-29 00:28:56,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660825693] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:28:56,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:28:56,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 00:28:56,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964905268] [2023-11-29 00:28:56,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:28:56,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:28:56,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:28:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:28:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:28:56,105 INFO L87 Difference]: Start difference. First operand 5080 states and 6400 transitions. Second operand has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:29:00,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:29:00,008 INFO L93 Difference]: Finished difference Result 6918 states and 8702 transitions. [2023-11-29 00:29:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-29 00:29:00,009 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 141 [2023-11-29 00:29:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:29:00,015 INFO L225 Difference]: With dead ends: 6918 [2023-11-29 00:29:00,015 INFO L226 Difference]: Without dead ends: 6916 [2023-11-29 00:29:00,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1284 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1147, Invalid=3965, Unknown=0, NotChecked=0, Total=5112 [2023-11-29 00:29:00,017 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 681 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:29:00,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 978 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:29:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6916 states. [2023-11-29 00:29:00,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6916 to 5906. [2023-11-29 00:29:00,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5703 states have (on average 1.2432053305277924) internal successors, (7090), 5725 states have internal predecessors, (7090), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2023-11-29 00:29:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 7446 transitions. [2023-11-29 00:29:00,797 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 7446 transitions. Word has length 141 [2023-11-29 00:29:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:29:00,798 INFO L495 AbstractCegarLoop]: Abstraction has 5906 states and 7446 transitions. [2023-11-29 00:29:00,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 10.130434782608695) internal successors, (233), 24 states have internal predecessors, (233), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:29:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 7446 transitions. [2023-11-29 00:29:00,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 00:29:00,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:29:00,799 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:29:00,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 00:29:00,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:00,999 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:29:00,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:29:00,999 INFO L85 PathProgramCache]: Analyzing trace with hash -16095747, now seen corresponding path program 3 times [2023-11-29 00:29:00,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:29:00,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151902344] [2023-11-29 00:29:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:29:01,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:29:01,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:29:01,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566612644] [2023-11-29 00:29:01,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:29:01,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:29:01,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:29:01,007 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:29:01,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 00:29:02,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:29:02,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:29:02,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 00:29:02,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:29:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 103 proven. 14 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 00:29:08,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:29:25,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:29:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151902344] [2023-11-29 00:29:25,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:29:25,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566612644] [2023-11-29 00:29:25,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566612644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:29:25,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:29:25,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 00:29:25,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499879021] [2023-11-29 00:29:25,565 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:29:25,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:29:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:29:25,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:29:25,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=866, Unknown=0, NotChecked=0, Total=992 [2023-11-29 00:29:25,566 INFO L87 Difference]: Start difference. First operand 5906 states and 7446 transitions. Second operand has 20 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:29:32,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:29:42,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:29:58,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:02,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:06,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:16,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:21,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:26,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:32,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:36,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:30:40,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:24,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:28,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:32,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:36,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:45,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:49,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:53,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:31:57,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:03,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:07,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:11,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:15,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:19,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:23,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:28,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:33,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:37,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:41,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:45,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:50,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:52,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:32:58,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:33:02,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:33:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:03,095 INFO L93 Difference]: Finished difference Result 5906 states and 7446 transitions. [2023-11-29 00:33:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 00:33:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 144 [2023-11-29 00:33:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:03,101 INFO L225 Difference]: With dead ends: 5906 [2023-11-29 00:33:03,101 INFO L226 Difference]: Without dead ends: 5900 [2023-11-29 00:33:03,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 81.0s TimeCoverageRelationStatistics Valid=505, Invalid=2238, Unknown=13, NotChecked=0, Total=2756 [2023-11-29 00:33:03,102 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 432 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 23 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 150.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 150.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:03,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 96 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1034 Invalid, 31 Unknown, 0 Unchecked, 150.5s Time] [2023-11-29 00:33:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2023-11-29 00:33:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 5187. [2023-11-29 00:33:04,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5011 states have (on average 1.1484733586110556) internal successors, (5755), 5027 states have internal predecessors, (5755), 157 states have call successors, (157), 2 states have call predecessors, (157), 2 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-29 00:33:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6069 transitions. [2023-11-29 00:33:04,289 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6069 transitions. Word has length 144 [2023-11-29 00:33:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:04,290 INFO L495 AbstractCegarLoop]: Abstraction has 5187 states and 6069 transitions. [2023-11-29 00:33:04,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.947368421052632) internal successors, (94), 19 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:33:04,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6069 transitions. [2023-11-29 00:33:04,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 00:33:04,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:04,291 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:04,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 00:33:04,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:04,491 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:33:04,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:04,492 INFO L85 PathProgramCache]: Analyzing trace with hash 793111360, now seen corresponding path program 2 times [2023-11-29 00:33:04,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:04,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975414016] [2023-11-29 00:33:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:04,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:04,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:04,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153798912] [2023-11-29 00:33:04,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:33:04,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:04,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:04,501 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:04,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 00:33:04,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:33:04,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:33:04,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:33:04,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:33:05,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:33:05,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:05,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975414016] [2023-11-29 00:33:05,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:05,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153798912] [2023-11-29 00:33:05,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153798912] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:05,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:33:05,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 00:33:05,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915731292] [2023-11-29 00:33:05,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:05,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:33:05,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:05,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:33:05,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:33:05,646 INFO L87 Difference]: Start difference. First operand 5187 states and 6069 transitions. Second operand has 24 states, 24 states have (on average 9.625) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:33:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:08,908 INFO L93 Difference]: Finished difference Result 5415 states and 6316 transitions. [2023-11-29 00:33:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 00:33:08,908 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.625) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 146 [2023-11-29 00:33:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:08,912 INFO L225 Difference]: With dead ends: 5415 [2023-11-29 00:33:08,912 INFO L226 Difference]: Without dead ends: 5327 [2023-11-29 00:33:08,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=520, Invalid=2450, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 00:33:08,913 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 302 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:08,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1123 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 00:33:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2023-11-29 00:33:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 5296. [2023-11-29 00:33:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5116 states have (on average 1.147185301016419) internal successors, (5869), 5132 states have internal predecessors, (5869), 161 states have call successors, (161), 2 states have call predecessors, (161), 2 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2023-11-29 00:33:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 6191 transitions. [2023-11-29 00:33:09,970 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 6191 transitions. Word has length 146 [2023-11-29 00:33:09,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:09,971 INFO L495 AbstractCegarLoop]: Abstraction has 5296 states and 6191 transitions. [2023-11-29 00:33:09,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.625) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:33:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 6191 transitions. [2023-11-29 00:33:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 00:33:09,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:09,972 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:09,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 00:33:10,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:10,173 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:33:10,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:10,173 INFO L85 PathProgramCache]: Analyzing trace with hash -498968071, now seen corresponding path program 2 times [2023-11-29 00:33:10,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:10,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661507592] [2023-11-29 00:33:10,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:10,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:10,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:10,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424154110] [2023-11-29 00:33:10,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:33:10,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:10,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:10,194 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:10,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 00:33:10,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:33:10,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:33:10,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-29 00:33:10,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 156 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 00:33:11,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 00:33:13,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:13,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661507592] [2023-11-29 00:33:13,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:13,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424154110] [2023-11-29 00:33:13,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424154110] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:13,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:33:13,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11] total 29 [2023-11-29 00:33:13,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168172871] [2023-11-29 00:33:13,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:13,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 00:33:13,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:13,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 00:33:13,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:33:13,999 INFO L87 Difference]: Start difference. First operand 5296 states and 6191 transitions. Second operand has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 30 states have internal predecessors, (229), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:33:23,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:23,681 INFO L93 Difference]: Finished difference Result 5337 states and 6230 transitions. [2023-11-29 00:33:23,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 00:33:23,682 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 30 states have internal predecessors, (229), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) Word has length 145 [2023-11-29 00:33:23,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:23,688 INFO L225 Difference]: With dead ends: 5337 [2023-11-29 00:33:23,689 INFO L226 Difference]: Without dead ends: 5334 [2023-11-29 00:33:23,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=378, Invalid=3044, Unknown=0, NotChecked=0, Total=3422 [2023-11-29 00:33:23,690 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 538 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:23,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 305 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-29 00:33:23,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2023-11-29 00:33:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5297. [2023-11-29 00:33:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5118 states have (on average 1.139116842516608) internal successors, (5830), 5133 states have internal predecessors, (5830), 161 states have call successors, (161), 2 states have call predecessors, (161), 2 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2023-11-29 00:33:25,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 6152 transitions. [2023-11-29 00:33:25,206 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 6152 transitions. Word has length 145 [2023-11-29 00:33:25,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:25,206 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 6152 transitions. [2023-11-29 00:33:25,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 30 states have internal predecessors, (229), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:33:25,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 6152 transitions. [2023-11-29 00:33:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 00:33:25,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:25,208 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:25,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 00:33:25,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2023-11-29 00:33:25,409 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:33:25,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:25,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1971518020, now seen corresponding path program 1 times [2023-11-29 00:33:25,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:25,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762042558] [2023-11-29 00:33:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:25,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:25,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924986342] [2023-11-29 00:33:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:25,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:25,418 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:25,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 00:33:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:25,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:33:25,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:33:26,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:33:26,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:26,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762042558] [2023-11-29 00:33:26,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:26,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924986342] [2023-11-29 00:33:26,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924986342] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:26,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:33:26,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 00:33:26,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525601586] [2023-11-29 00:33:26,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:26,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:33:26,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:26,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:33:26,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:33:26,298 INFO L87 Difference]: Start difference. First operand 5297 states and 6152 transitions. Second operand has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:33:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:28,603 INFO L93 Difference]: Finished difference Result 5841 states and 6743 transitions. [2023-11-29 00:33:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:33:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 148 [2023-11-29 00:33:28,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:28,609 INFO L225 Difference]: With dead ends: 5841 [2023-11-29 00:33:28,609 INFO L226 Difference]: Without dead ends: 5840 [2023-11-29 00:33:28,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:33:28,610 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 804 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:28,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 510 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:33:28,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2023-11-29 00:33:29,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 4999. [2023-11-29 00:33:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 4829 states have (on average 1.133153862083247) internal successors, (5472), 4844 states have internal predecessors, (5472), 152 states have call successors, (152), 2 states have call predecessors, (152), 2 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 00:33:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 5776 transitions. [2023-11-29 00:33:29,827 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 5776 transitions. Word has length 148 [2023-11-29 00:33:29,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:29,828 INFO L495 AbstractCegarLoop]: Abstraction has 4999 states and 5776 transitions. [2023-11-29 00:33:29,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:33:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 5776 transitions. [2023-11-29 00:33:29,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 00:33:29,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:29,829 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:29,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 00:33:30,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:30,029 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:33:30,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:30,030 INFO L85 PathProgramCache]: Analyzing trace with hash 171425038, now seen corresponding path program 3 times [2023-11-29 00:33:30,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:30,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546381463] [2023-11-29 00:33:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:30,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:30,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:30,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098887515] [2023-11-29 00:33:30,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:33:30,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:30,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:30,041 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:30,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 00:33:30,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:33:30,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:33:30,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:33:30,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:31,581 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 85 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-11-29 00:33:31,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:57,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:57,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546381463] [2023-11-29 00:33:57,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:57,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098887515] [2023-11-29 00:33:57,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098887515] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:33:57,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:33:57,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 00:33:57,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604123456] [2023-11-29 00:33:57,909 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:57,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:33:57,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:57,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:33:57,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=723, Unknown=2, NotChecked=0, Total=870 [2023-11-29 00:33:57,909 INFO L87 Difference]: Start difference. First operand 4999 states and 5776 transitions. Second operand has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:34:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:02,842 INFO L93 Difference]: Finished difference Result 4999 states and 5776 transitions. [2023-11-29 00:34:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 00:34:02,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 150 [2023-11-29 00:34:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:02,846 INFO L225 Difference]: With dead ends: 4999 [2023-11-29 00:34:02,846 INFO L226 Difference]: Without dead ends: 4997 [2023-11-29 00:34:02,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=354, Invalid=1366, Unknown=2, NotChecked=0, Total=1722 [2023-11-29 00:34:02,847 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 271 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:02,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 121 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:34:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4997 states. [2023-11-29 00:34:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4997 to 4927. [2023-11-29 00:34:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4927 states, 4760 states have (on average 1.123109243697479) internal successors, (5346), 4773 states have internal predecessors, (5346), 151 states have call successors, (151), 2 states have call predecessors, (151), 2 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2023-11-29 00:34:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4927 states to 4927 states and 5648 transitions. [2023-11-29 00:34:04,117 INFO L78 Accepts]: Start accepts. Automaton has 4927 states and 5648 transitions. Word has length 150 [2023-11-29 00:34:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:04,117 INFO L495 AbstractCegarLoop]: Abstraction has 4927 states and 5648 transitions. [2023-11-29 00:34:04,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:34:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4927 states and 5648 transitions. [2023-11-29 00:34:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 00:34:04,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:04,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:04,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2023-11-29 00:34:04,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:04,319 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:04,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:04,319 INFO L85 PathProgramCache]: Analyzing trace with hash 396602129, now seen corresponding path program 1 times [2023-11-29 00:34:04,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:04,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790341047] [2023-11-29 00:34:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:04,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:04,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:04,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609940061] [2023-11-29 00:34:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:04,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:04,331 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:04,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 00:34:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:34:04,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:34:04,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:04,741 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 6 proven. 145 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:04,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:34:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 31 proven. 120 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:05,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790341047] [2023-11-29 00:34:05,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609940061] [2023-11-29 00:34:05,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609940061] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:34:05,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:34:05,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 00:34:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326662115] [2023-11-29 00:34:05,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:34:05,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:34:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:05,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:34:05,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:34:05,403 INFO L87 Difference]: Start difference. First operand 4927 states and 5648 transitions. Second operand has 14 states, 14 states have (on average 16.928571428571427) internal successors, (237), 14 states have internal predecessors, (237), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:34:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:08,151 INFO L93 Difference]: Finished difference Result 7351 states and 8464 transitions. [2023-11-29 00:34:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:34:08,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.928571428571427) internal successors, (237), 14 states have internal predecessors, (237), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 151 [2023-11-29 00:34:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:08,157 INFO L225 Difference]: With dead ends: 7351 [2023-11-29 00:34:08,157 INFO L226 Difference]: Without dead ends: 6488 [2023-11-29 00:34:08,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:34:08,159 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 460 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:08,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 708 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:34:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6488 states. [2023-11-29 00:34:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 6267. [2023-11-29 00:34:09,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6267 states, 6056 states have (on average 1.1231836195508587) internal successors, (6802), 6069 states have internal predecessors, (6802), 195 states have call successors, (195), 2 states have call predecessors, (195), 2 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2023-11-29 00:34:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6267 states to 6267 states and 7192 transitions. [2023-11-29 00:34:09,796 INFO L78 Accepts]: Start accepts. Automaton has 6267 states and 7192 transitions. Word has length 151 [2023-11-29 00:34:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:09,797 INFO L495 AbstractCegarLoop]: Abstraction has 6267 states and 7192 transitions. [2023-11-29 00:34:09,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.928571428571427) internal successors, (237), 14 states have internal predecessors, (237), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:34:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 6267 states and 7192 transitions. [2023-11-29 00:34:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 00:34:09,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:09,798 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:09,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 00:34:09,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:09,999 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:09,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1873988099, now seen corresponding path program 2 times [2023-11-29 00:34:09,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:09,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216501951] [2023-11-29 00:34:09,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:10,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:10,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127581462] [2023-11-29 00:34:10,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:34:10,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:10,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:10,009 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:10,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 00:34:10,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:34:10,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:34:10,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:34:10,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:10,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:34:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:11,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:11,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216501951] [2023-11-29 00:34:11,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:11,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127581462] [2023-11-29 00:34:11,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127581462] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:34:11,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:34:11,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 00:34:11,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295168904] [2023-11-29 00:34:11,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:34:11,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:34:11,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:11,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:34:11,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:34:11,463 INFO L87 Difference]: Start difference. First operand 6267 states and 7192 transitions. Second operand has 14 states, 13 states have (on average 19.692307692307693) internal successors, (256), 14 states have internal predecessors, (256), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-29 00:34:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:15,419 INFO L93 Difference]: Finished difference Result 7374 states and 8401 transitions. [2023-11-29 00:34:15,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:34:15,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 19.692307692307693) internal successors, (256), 14 states have internal predecessors, (256), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 155 [2023-11-29 00:34:15,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:15,426 INFO L225 Difference]: With dead ends: 7374 [2023-11-29 00:34:15,426 INFO L226 Difference]: Without dead ends: 7373 [2023-11-29 00:34:15,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:34:15,428 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 802 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:15,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 863 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:34:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7373 states. [2023-11-29 00:34:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7373 to 6761. [2023-11-29 00:34:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6536 states have (on average 1.1214810281517749) internal successors, (7330), 6549 states have internal predecessors, (7330), 209 states have call successors, (209), 2 states have call predecessors, (209), 2 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-29 00:34:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 7748 transitions. [2023-11-29 00:34:17,251 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 7748 transitions. Word has length 155 [2023-11-29 00:34:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:17,251 INFO L495 AbstractCegarLoop]: Abstraction has 6761 states and 7748 transitions. [2023-11-29 00:34:17,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 19.692307692307693) internal successors, (256), 14 states have internal predecessors, (256), 10 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-29 00:34:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 7748 transitions. [2023-11-29 00:34:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 00:34:17,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:17,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:17,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 00:34:17,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:17,454 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:17,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 381785684, now seen corresponding path program 1 times [2023-11-29 00:34:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:17,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389411750] [2023-11-29 00:34:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:17,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:17,464 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:17,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525877623] [2023-11-29 00:34:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:17,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:17,465 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:17,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 00:34:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:34:17,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 00:34:17,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:18,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:34:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:18,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389411750] [2023-11-29 00:34:18,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525877623] [2023-11-29 00:34:18,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525877623] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:34:18,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:34:18,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-29 00:34:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293106946] [2023-11-29 00:34:18,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:34:18,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:34:18,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:18,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:34:18,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:34:18,547 INFO L87 Difference]: Start difference. First operand 6761 states and 7748 transitions. Second operand has 26 states, 25 states have (on average 10.12) internal successors, (253), 26 states have internal predecessors, (253), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:34:20,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:34:25,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:25,414 INFO L93 Difference]: Finished difference Result 7053 states and 8049 transitions. [2023-11-29 00:34:25,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 00:34:25,414 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 10.12) internal successors, (253), 26 states have internal predecessors, (253), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 156 [2023-11-29 00:34:25,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:25,420 INFO L225 Difference]: With dead ends: 7053 [2023-11-29 00:34:25,420 INFO L226 Difference]: Without dead ends: 7052 [2023-11-29 00:34:25,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=662, Invalid=2644, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 00:34:25,421 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 714 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:25,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1358 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 00:34:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7052 states. [2023-11-29 00:34:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7052 to 6853. [2023-11-29 00:34:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6626 states have (on average 1.1201328101418653) internal successors, (7422), 6639 states have internal predecessors, (7422), 211 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 00:34:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 7844 transitions. [2023-11-29 00:34:26,954 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 7844 transitions. Word has length 156 [2023-11-29 00:34:26,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:26,954 INFO L495 AbstractCegarLoop]: Abstraction has 6853 states and 7844 transitions. [2023-11-29 00:34:26,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 10.12) internal successors, (253), 26 states have internal predecessors, (253), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:34:26,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 7844 transitions. [2023-11-29 00:34:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 00:34:26,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:26,955 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:26,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 00:34:27,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:27,156 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:27,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 748914513, now seen corresponding path program 2 times [2023-11-29 00:34:27,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:27,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335707155] [2023-11-29 00:34:27,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:27,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:27,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:27,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651248502] [2023-11-29 00:34:27,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:34:27,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:27,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:27,170 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:27,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 00:34:27,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:34:27,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:34:27,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:34:27,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:28,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:34:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:28,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335707155] [2023-11-29 00:34:28,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651248502] [2023-11-29 00:34:28,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651248502] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:34:28,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:34:28,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 00:34:28,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131621279] [2023-11-29 00:34:28,941 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:34:28,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 00:34:28,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 00:34:28,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:34:28,943 INFO L87 Difference]: Start difference. First operand 6853 states and 7844 transitions. Second operand has 22 states, 21 states have (on average 12.523809523809524) internal successors, (263), 22 states have internal predecessors, (263), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 00:34:32,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:32,908 INFO L93 Difference]: Finished difference Result 7194 states and 8210 transitions. [2023-11-29 00:34:32,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 00:34:32,909 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 12.523809523809524) internal successors, (263), 22 states have internal predecessors, (263), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 159 [2023-11-29 00:34:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:32,914 INFO L225 Difference]: With dead ends: 7194 [2023-11-29 00:34:32,914 INFO L226 Difference]: Without dead ends: 7193 [2023-11-29 00:34:32,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=571, Invalid=1409, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 00:34:32,915 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 571 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:32,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1051 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:34:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2023-11-29 00:34:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 7011. [2023-11-29 00:34:34,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 6779 states have (on average 1.1197816787136745) internal successors, (7591), 6792 states have internal predecessors, (7591), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 00:34:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 8023 transitions. [2023-11-29 00:34:34,448 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 8023 transitions. Word has length 159 [2023-11-29 00:34:34,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:34,448 INFO L495 AbstractCegarLoop]: Abstraction has 7011 states and 8023 transitions. [2023-11-29 00:34:34,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 12.523809523809524) internal successors, (263), 22 states have internal predecessors, (263), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 00:34:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 8023 transitions. [2023-11-29 00:34:34,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 00:34:34,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:34,450 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:34,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 00:34:34,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:34,650 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:34,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1518767978, now seen corresponding path program 2 times [2023-11-29 00:34:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:34,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831780817] [2023-11-29 00:34:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:34,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:34,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:34,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329698115] [2023-11-29 00:34:34,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:34:34,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:34,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:34,663 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:34,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 00:34:34,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 00:34:34,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:34:34,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:34:34,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-11-29 00:34:34,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:34:34,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:34,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831780817] [2023-11-29 00:34:34,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:34,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329698115] [2023-11-29 00:34:34,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329698115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:34:34,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:34:34,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:34:34,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448752361] [2023-11-29 00:34:34,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:34:34,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:34:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:34:34,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:34:34,893 INFO L87 Difference]: Start difference. First operand 7011 states and 8023 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:34:36,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:36,830 INFO L93 Difference]: Finished difference Result 7012 states and 8023 transitions. [2023-11-29 00:34:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:34:36,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 161 [2023-11-29 00:34:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:36,838 INFO L225 Difference]: With dead ends: 7012 [2023-11-29 00:34:36,838 INFO L226 Difference]: Without dead ends: 6990 [2023-11-29 00:34:36,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:34:36,839 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 22 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:36,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 149 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:34:36,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2023-11-29 00:34:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 6990. [2023-11-29 00:34:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6990 states, 6758 states have (on average 1.1198579461379106) internal successors, (7568), 6771 states have internal predecessors, (7568), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 00:34:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6990 states to 6990 states and 8000 transitions. [2023-11-29 00:34:38,825 INFO L78 Accepts]: Start accepts. Automaton has 6990 states and 8000 transitions. Word has length 161 [2023-11-29 00:34:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:38,826 INFO L495 AbstractCegarLoop]: Abstraction has 6990 states and 8000 transitions. [2023-11-29 00:34:38,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:34:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6990 states and 8000 transitions. [2023-11-29 00:34:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-29 00:34:38,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:38,827 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:38,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 00:34:39,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2023-11-29 00:34:39,028 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:39,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash -611426980, now seen corresponding path program 1 times [2023-11-29 00:34:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:39,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127090144] [2023-11-29 00:34:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:39,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:39,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:39,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984341169] [2023-11-29 00:34:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:39,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:39,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:39,040 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:39,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 00:34:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:34:39,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:34:39,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:39,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:34:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:40,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127090144] [2023-11-29 00:34:40,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:40,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984341169] [2023-11-29 00:34:40,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984341169] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:34:40,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:34:40,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 00:34:40,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755429324] [2023-11-29 00:34:40,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:34:40,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:34:40,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:34:40,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:34:40,878 INFO L87 Difference]: Start difference. First operand 6990 states and 8000 transitions. Second operand has 24 states, 23 states have (on average 11.695652173913043) internal successors, (269), 24 states have internal predecessors, (269), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:34:44,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:44,693 INFO L93 Difference]: Finished difference Result 7061 states and 8066 transitions. [2023-11-29 00:34:44,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 00:34:44,693 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 11.695652173913043) internal successors, (269), 24 states have internal predecessors, (269), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 164 [2023-11-29 00:34:44,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:44,700 INFO L225 Difference]: With dead ends: 7061 [2023-11-29 00:34:44,700 INFO L226 Difference]: Without dead ends: 7044 [2023-11-29 00:34:44,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 744 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 00:34:44,701 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 615 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:44,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 895 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 00:34:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2023-11-29 00:34:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 6988. [2023-11-29 00:34:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6988 states, 6756 states have (on average 1.1195973949082296) internal successors, (7564), 6769 states have internal predecessors, (7564), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 00:34:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 7996 transitions. [2023-11-29 00:34:46,218 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 7996 transitions. Word has length 164 [2023-11-29 00:34:46,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:46,219 INFO L495 AbstractCegarLoop]: Abstraction has 6988 states and 7996 transitions. [2023-11-29 00:34:46,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 11.695652173913043) internal successors, (269), 24 states have internal predecessors, (269), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:34:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 7996 transitions. [2023-11-29 00:34:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 00:34:46,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:46,220 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:46,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 00:34:46,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2023-11-29 00:34:46,421 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:46,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:46,421 INFO L85 PathProgramCache]: Analyzing trace with hash 829197086, now seen corresponding path program 1 times [2023-11-29 00:34:46,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:46,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217698018] [2023-11-29 00:34:46,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:46,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:46,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:46,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996231633] [2023-11-29 00:34:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:46,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:46,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:46,431 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:46,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 00:34:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:34:46,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 00:34:46,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:34:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:34:49,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:34:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:34:51,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217698018] [2023-11-29 00:34:51,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:34:51,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996231633] [2023-11-29 00:34:51,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996231633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:34:51,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:34:51,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 00:34:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313590682] [2023-11-29 00:34:51,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:34:51,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:34:51,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:34:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:34:51,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=647, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:34:51,053 INFO L87 Difference]: Start difference. First operand 6988 states and 7996 transitions. Second operand has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:34:55,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:34:55,294 INFO L93 Difference]: Finished difference Result 7007 states and 8014 transitions. [2023-11-29 00:34:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 00:34:55,295 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 166 [2023-11-29 00:34:55,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:34:55,303 INFO L225 Difference]: With dead ends: 7007 [2023-11-29 00:34:55,303 INFO L226 Difference]: Without dead ends: 6988 [2023-11-29 00:34:55,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=226, Invalid=896, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:34:55,304 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 63 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:34:55,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 719 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:34:55,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6988 states. [2023-11-29 00:34:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6988 to 6988. [2023-11-29 00:34:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6988 states, 6756 states have (on average 1.119449378330373) internal successors, (7563), 6769 states have internal predecessors, (7563), 216 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2023-11-29 00:34:57,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 7995 transitions. [2023-11-29 00:34:57,156 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 7995 transitions. Word has length 166 [2023-11-29 00:34:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:34:57,156 INFO L495 AbstractCegarLoop]: Abstraction has 6988 states and 7995 transitions. [2023-11-29 00:34:57,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.888888888888889) internal successors, (142), 19 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:34:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 7995 transitions. [2023-11-29 00:34:57,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 00:34:57,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:34:57,158 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:34:57,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 00:34:57,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:57,358 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:34:57,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:34:57,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1946222084, now seen corresponding path program 2 times [2023-11-29 00:34:57,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:34:57,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273564430] [2023-11-29 00:34:57,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:34:57,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:34:57,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:34:57,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517107114] [2023-11-29 00:34:57,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:34:57,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:34:57,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:34:57,369 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:34:57,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 00:34:57,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:34:57,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:34:57,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 00:34:57,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:35:00,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:35:14,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:14,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273564430] [2023-11-29 00:35:14,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:35:14,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517107114] [2023-11-29 00:35:14,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517107114] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:35:14,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:35:14,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-11-29 00:35:14,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983452764] [2023-11-29 00:35:14,115 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:35:14,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 00:35:14,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:14,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 00:35:14,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=952, Unknown=2, NotChecked=0, Total=1122 [2023-11-29 00:35:14,116 INFO L87 Difference]: Start difference. First operand 6988 states and 7995 transitions. Second operand has 25 states, 24 states have (on average 6.0) internal successors, (144), 25 states have internal predecessors, (144), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:35:25,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:25,213 INFO L93 Difference]: Finished difference Result 7060 states and 8069 transitions. [2023-11-29 00:35:25,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 00:35:25,214 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.0) internal successors, (144), 25 states have internal predecessors, (144), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 168 [2023-11-29 00:35:25,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:25,219 INFO L225 Difference]: With dead ends: 7060 [2023-11-29 00:35:25,219 INFO L226 Difference]: Without dead ends: 7059 [2023-11-29 00:35:25,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=315, Invalid=1753, Unknown=2, NotChecked=0, Total=2070 [2023-11-29 00:35:25,220 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 283 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 3724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:25,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 968 Invalid, 3724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3714 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 00:35:25,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2023-11-29 00:35:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 7017. [2023-11-29 00:35:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7017 states, 6784 states have (on average 1.118808962264151) internal successors, (7590), 6797 states have internal predecessors, (7590), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:35:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 8024 transitions. [2023-11-29 00:35:27,365 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 8024 transitions. Word has length 168 [2023-11-29 00:35:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:27,365 INFO L495 AbstractCegarLoop]: Abstraction has 7017 states and 8024 transitions. [2023-11-29 00:35:27,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.0) internal successors, (144), 25 states have internal predecessors, (144), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:35:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 8024 transitions. [2023-11-29 00:35:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 00:35:27,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:27,367 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:27,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2023-11-29 00:35:27,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:27,568 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:35:27,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:27,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1401075662, now seen corresponding path program 2 times [2023-11-29 00:35:27,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:27,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164458459] [2023-11-29 00:35:27,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:27,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:27,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:35:27,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596725159] [2023-11-29 00:35:27,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:35:27,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:27,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:27,579 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:35:27,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 00:35:27,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:35:27,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:35:27,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:35:27,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:35:28,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:35:28,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164458459] [2023-11-29 00:35:28,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:35:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596725159] [2023-11-29 00:35:28,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596725159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:35:28,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:35:28,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 00:35:28,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793802982] [2023-11-29 00:35:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:35:28,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:35:28,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:28,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:35:28,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:35:28,292 INFO L87 Difference]: Start difference. First operand 7017 states and 8024 transitions. Second operand has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 15 states have internal predecessors, (144), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:35:32,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:32,847 INFO L93 Difference]: Finished difference Result 7124 states and 8124 transitions. [2023-11-29 00:35:32,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:35:32,847 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 15 states have internal predecessors, (144), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 168 [2023-11-29 00:35:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:32,852 INFO L225 Difference]: With dead ends: 7124 [2023-11-29 00:35:32,852 INFO L226 Difference]: Without dead ends: 7123 [2023-11-29 00:35:32,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:35:32,853 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 366 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:32,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 577 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 00:35:32,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7123 states. [2023-11-29 00:35:34,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7123 to 6999. [2023-11-29 00:35:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6766 states have (on average 1.118238250073899) internal successors, (7566), 6779 states have internal predecessors, (7566), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:35:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 8000 transitions. [2023-11-29 00:35:34,482 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 8000 transitions. Word has length 168 [2023-11-29 00:35:34,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:34,483 INFO L495 AbstractCegarLoop]: Abstraction has 6999 states and 8000 transitions. [2023-11-29 00:35:34,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.285714285714286) internal successors, (144), 15 states have internal predecessors, (144), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:35:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 8000 transitions. [2023-11-29 00:35:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 00:35:34,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:34,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:34,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2023-11-29 00:35:34,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:34,684 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:35:34,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash 483672728, now seen corresponding path program 1 times [2023-11-29 00:35:34,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:34,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646855340] [2023-11-29 00:35:34,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:34,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:34,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:35:34,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721245094] [2023-11-29 00:35:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:34,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:34,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:34,693 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:35:34,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 00:35:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:35:34,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 00:35:34,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 9 proven. 162 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 00:35:42,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:35:45,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:35:45,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646855340] [2023-11-29 00:35:45,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:35:45,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721245094] [2023-11-29 00:35:45,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721245094] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:35:45,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:35:45,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2023-11-29 00:35:45,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288981970] [2023-11-29 00:35:45,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:35:45,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:35:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:35:45,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:35:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1124, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 00:35:45,053 INFO L87 Difference]: Start difference. First operand 6999 states and 8000 transitions. Second operand has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:35:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:35:56,696 INFO L93 Difference]: Finished difference Result 7011 states and 8011 transitions. [2023-11-29 00:35:56,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 00:35:56,696 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 169 [2023-11-29 00:35:56,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:35:56,702 INFO L225 Difference]: With dead ends: 7011 [2023-11-29 00:35:56,702 INFO L226 Difference]: Without dead ends: 7010 [2023-11-29 00:35:56,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=282, Invalid=1974, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:35:56,703 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 167 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:35:56,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1448 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 00:35:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2023-11-29 00:35:58,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 6991. [2023-11-29 00:35:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 6758 states have (on average 1.118378218407813) internal successors, (7558), 6771 states have internal predecessors, (7558), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:35:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 7992 transitions. [2023-11-29 00:35:58,206 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 7992 transitions. Word has length 169 [2023-11-29 00:35:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:35:58,207 INFO L495 AbstractCegarLoop]: Abstraction has 6991 states and 7992 transitions. [2023-11-29 00:35:58,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:35:58,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 7992 transitions. [2023-11-29 00:35:58,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 00:35:58,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:35:58,208 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:35:58,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 00:35:58,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2023-11-29 00:35:58,409 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:35:58,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:35:58,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2108952848, now seen corresponding path program 2 times [2023-11-29 00:35:58,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:35:58,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074535180] [2023-11-29 00:35:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:35:58,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:35:58,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:35:58,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42232919] [2023-11-29 00:35:58,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:35:58,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:35:58,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:35:58,419 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:35:58,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 00:35:58,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:35:58,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:35:58,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 00:35:58,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:35:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:35:59,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:00,728 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:36:00,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:36:00,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074535180] [2023-11-29 00:36:00,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:36:00,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42232919] [2023-11-29 00:36:00,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42232919] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:36:00,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:36:00,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-11-29 00:36:00,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595839623] [2023-11-29 00:36:00,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:00,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 00:36:00,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:36:00,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 00:36:00,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:36:00,731 INFO L87 Difference]: Start difference. First operand 6991 states and 7992 transitions. Second operand has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:36:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:07,726 INFO L93 Difference]: Finished difference Result 7131 states and 8126 transitions. [2023-11-29 00:36:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 00:36:07,727 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 170 [2023-11-29 00:36:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:07,732 INFO L225 Difference]: With dead ends: 7131 [2023-11-29 00:36:07,732 INFO L226 Difference]: Without dead ends: 7112 [2023-11-29 00:36:07,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1237, Invalid=4925, Unknown=0, NotChecked=0, Total=6162 [2023-11-29 00:36:07,734 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 602 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:07,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1086 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 00:36:07,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7112 states. [2023-11-29 00:36:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7112 to 7026. [2023-11-29 00:36:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 6793 states have (on average 1.1182099219785073) internal successors, (7596), 6806 states have internal predecessors, (7596), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:36:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 8030 transitions. [2023-11-29 00:36:09,255 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 8030 transitions. Word has length 170 [2023-11-29 00:36:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:09,255 INFO L495 AbstractCegarLoop]: Abstraction has 7026 states and 8030 transitions. [2023-11-29 00:36:09,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 10.407407407407407) internal successors, (281), 28 states have internal predecessors, (281), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:36:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 8030 transitions. [2023-11-29 00:36:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 00:36:09,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:09,257 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:09,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 00:36:09,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2023-11-29 00:36:09,458 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:36:09,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:09,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1296761492, now seen corresponding path program 3 times [2023-11-29 00:36:09,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:36:09,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030339789] [2023-11-29 00:36:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:36:09,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:36:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405963279] [2023-11-29 00:36:09,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:36:09,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:36:09,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:36:09,467 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:36:09,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 00:36:09,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:36:09,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:36:09,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:36:09,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 143 proven. 16 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-29 00:36:09,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 143 proven. 16 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-11-29 00:36:10,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:36:10,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030339789] [2023-11-29 00:36:10,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:36:10,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405963279] [2023-11-29 00:36:10,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405963279] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:36:10,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:36:10,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 00:36:10,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073534291] [2023-11-29 00:36:10,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:10,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:36:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:36:10,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:36:10,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:36:10,227 INFO L87 Difference]: Start difference. First operand 7026 states and 8030 transitions. Second operand has 19 states, 18 states have (on average 8.0) internal successors, (144), 19 states have internal predecessors, (144), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 00:36:14,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:14,743 INFO L93 Difference]: Finished difference Result 7169 states and 8180 transitions. [2023-11-29 00:36:14,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 00:36:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.0) internal successors, (144), 19 states have internal predecessors, (144), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 171 [2023-11-29 00:36:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:14,748 INFO L225 Difference]: With dead ends: 7169 [2023-11-29 00:36:14,748 INFO L226 Difference]: Without dead ends: 7168 [2023-11-29 00:36:14,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:36:14,749 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 488 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:14,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 175 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 00:36:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7168 states. [2023-11-29 00:36:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7168 to 7026. [2023-11-29 00:36:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 6793 states have (on average 1.1054026203444722) internal successors, (7509), 6806 states have internal predecessors, (7509), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:36:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 7943 transitions. [2023-11-29 00:36:16,276 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 7943 transitions. Word has length 171 [2023-11-29 00:36:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:16,276 INFO L495 AbstractCegarLoop]: Abstraction has 7026 states and 7943 transitions. [2023-11-29 00:36:16,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.0) internal successors, (144), 19 states have internal predecessors, (144), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 00:36:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 7943 transitions. [2023-11-29 00:36:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 00:36:16,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:16,278 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:16,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 00:36:16,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2023-11-29 00:36:16,478 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:36:16,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:16,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1144634580, now seen corresponding path program 4 times [2023-11-29 00:36:16,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:36:16,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070293620] [2023-11-29 00:36:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:16,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:36:16,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:36:16,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920716064] [2023-11-29 00:36:16,486 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:36:16,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:36:16,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:36:16,487 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:36:16,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 00:36:16,557 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:36:16,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:36:16,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:36:16,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 71 proven. 178 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-29 00:36:17,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:22,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:36:22,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070293620] [2023-11-29 00:36:22,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:36:22,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920716064] [2023-11-29 00:36:22,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920716064] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:36:22,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:36:22,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 00:36:22,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116782921] [2023-11-29 00:36:22,207 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:22,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:36:22,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:36:22,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:36:22,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=360, Unknown=1, NotChecked=0, Total=420 [2023-11-29 00:36:22,208 INFO L87 Difference]: Start difference. First operand 7026 states and 7943 transitions. Second operand has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:36:26,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:26,692 INFO L93 Difference]: Finished difference Result 7235 states and 8151 transitions. [2023-11-29 00:36:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 00:36:26,693 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 179 [2023-11-29 00:36:26,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:26,697 INFO L225 Difference]: With dead ends: 7235 [2023-11-29 00:36:26,698 INFO L226 Difference]: Without dead ends: 7234 [2023-11-29 00:36:26,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=281, Invalid=1050, Unknown=1, NotChecked=0, Total=1332 [2023-11-29 00:36:26,699 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 289 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:26,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 843 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 00:36:26,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7234 states. [2023-11-29 00:36:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7234 to 7026. [2023-11-29 00:36:28,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 6793 states have (on average 1.1009863094361843) internal successors, (7479), 6806 states have internal predecessors, (7479), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:36:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 7913 transitions. [2023-11-29 00:36:28,239 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 7913 transitions. Word has length 179 [2023-11-29 00:36:28,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:28,240 INFO L495 AbstractCegarLoop]: Abstraction has 7026 states and 7913 transitions. [2023-11-29 00:36:28,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.071428571428571) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:36:28,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 7913 transitions. [2023-11-29 00:36:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 00:36:28,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:28,241 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:28,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 00:36:28,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 00:36:28,441 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:36:28,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:28,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1488159183, now seen corresponding path program 2 times [2023-11-29 00:36:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:36:28,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706880355] [2023-11-29 00:36:28,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:28,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:36:28,449 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:36:28,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222301178] [2023-11-29 00:36:28,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:36:28,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:36:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:36:28,450 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:36:28,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 00:36:28,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:36:28,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:36:28,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 00:36:28,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 00:36:29,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:29,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:36:29,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706880355] [2023-11-29 00:36:29,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:36:29,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222301178] [2023-11-29 00:36:29,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222301178] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:36:29,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:36:29,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 00:36:29,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381811215] [2023-11-29 00:36:29,483 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:29,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:36:29,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:36:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:36:29,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:36:29,484 INFO L87 Difference]: Start difference. First operand 7026 states and 7913 transitions. Second operand has 16 states, 15 states have (on average 10.4) internal successors, (156), 16 states have internal predecessors, (156), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 00:36:31,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:36:31,616 INFO L93 Difference]: Finished difference Result 7061 states and 7947 transitions. [2023-11-29 00:36:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:36:31,616 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.4) internal successors, (156), 16 states have internal predecessors, (156), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 185 [2023-11-29 00:36:31,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:36:31,621 INFO L225 Difference]: With dead ends: 7061 [2023-11-29 00:36:31,621 INFO L226 Difference]: Without dead ends: 7060 [2023-11-29 00:36:31,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 00:36:31,622 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 284 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:36:31,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 701 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:36:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7060 states. [2023-11-29 00:36:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7060 to 7034. [2023-11-29 00:36:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 6801 states have (on average 1.1008675194824291) internal successors, (7487), 6814 states have internal predecessors, (7487), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:36:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 7921 transitions. [2023-11-29 00:36:33,242 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 7921 transitions. Word has length 185 [2023-11-29 00:36:33,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:36:33,242 INFO L495 AbstractCegarLoop]: Abstraction has 7034 states and 7921 transitions. [2023-11-29 00:36:33,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.4) internal successors, (156), 16 states have internal predecessors, (156), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 00:36:33,242 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 7921 transitions. [2023-11-29 00:36:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 00:36:33,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:36:33,243 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:36:33,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 00:36:33,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 00:36:33,443 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:36:33,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:36:33,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1097940457, now seen corresponding path program 1 times [2023-11-29 00:36:33,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:36:33,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550154397] [2023-11-29 00:36:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:33,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:36:33,454 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:36:33,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123316291] [2023-11-29 00:36:33,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:36:33,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:36:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:36:33,455 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:36:33,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 00:36:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:36:33,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 00:36:33,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:36:35,345 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 12 proven. 246 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 00:36:35,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:36:40,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:36:40,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550154397] [2023-11-29 00:36:40,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:36:40,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123316291] [2023-11-29 00:36:40,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123316291] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:36:40,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:36:40,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2023-11-29 00:36:40,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364121203] [2023-11-29 00:36:40,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:36:40,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:36:40,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:36:40,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:36:40,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1178, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 00:36:40,999 INFO L87 Difference]: Start difference. First operand 7034 states and 7921 transitions. Second operand has 26 states, 25 states have (on average 6.48) internal successors, (162), 25 states have internal predecessors, (162), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 00:36:47,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:36:51,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:36:56,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:37:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:37:02,959 INFO L93 Difference]: Finished difference Result 7063 states and 7949 transitions. [2023-11-29 00:37:02,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 00:37:02,959 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.48) internal successors, (162), 25 states have internal predecessors, (162), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 188 [2023-11-29 00:37:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:37:02,965 INFO L225 Difference]: With dead ends: 7063 [2023-11-29 00:37:02,965 INFO L226 Difference]: Without dead ends: 7062 [2023-11-29 00:37:02,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=399, Invalid=2050, Unknown=1, NotChecked=0, Total=2450 [2023-11-29 00:37:02,967 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 194 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 3791 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 3799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3791 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:37:02,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1152 Invalid, 3799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3791 Invalid, 5 Unknown, 0 Unchecked, 14.5s Time] [2023-11-29 00:37:02,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7062 states. [2023-11-29 00:37:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7062 to 7037. [2023-11-29 00:37:04,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 6804 states have (on average 1.1008230452674896) internal successors, (7490), 6817 states have internal predecessors, (7490), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:37:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 7924 transitions. [2023-11-29 00:37:04,535 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 7924 transitions. Word has length 188 [2023-11-29 00:37:04,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:37:04,535 INFO L495 AbstractCegarLoop]: Abstraction has 7037 states and 7924 transitions. [2023-11-29 00:37:04,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.48) internal successors, (162), 25 states have internal predecessors, (162), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 00:37:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 7924 transitions. [2023-11-29 00:37:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 00:37:04,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:37:04,536 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:37:04,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 00:37:04,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 00:37:04,737 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:37:04,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:37:04,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1799096950, now seen corresponding path program 3 times [2023-11-29 00:37:04,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:37:04,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579206541] [2023-11-29 00:37:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:37:04,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:37:04,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:37:04,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657500946] [2023-11-29 00:37:04,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:37:04,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:37:04,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:37:04,747 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:37:04,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 00:37:04,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:37:04,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:37:04,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:37:04,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:37:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-11-29 00:37:05,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:37:05,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:37:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579206541] [2023-11-29 00:37:05,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:37:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657500946] [2023-11-29 00:37:05,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657500946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:37:05,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:37:05,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:37:05,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597000196] [2023-11-29 00:37:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:37:05,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:37:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:37:05,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:37:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:37:05,309 INFO L87 Difference]: Start difference. First operand 7037 states and 7924 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:37:06,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:37:06,994 INFO L93 Difference]: Finished difference Result 7215 states and 8111 transitions. [2023-11-29 00:37:06,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:37:06,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 188 [2023-11-29 00:37:06,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:37:06,999 INFO L225 Difference]: With dead ends: 7215 [2023-11-29 00:37:06,999 INFO L226 Difference]: Without dead ends: 7214 [2023-11-29 00:37:06,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:37:07,000 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 73 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:37:07,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 165 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:37:07,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7214 states. [2023-11-29 00:37:08,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7214 to 7043. [2023-11-29 00:37:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 6810 states have (on average 1.0980910425844346) internal successors, (7478), 6823 states have internal predecessors, (7478), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 00:37:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 7912 transitions. [2023-11-29 00:37:08,533 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 7912 transitions. Word has length 188 [2023-11-29 00:37:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:37:08,533 INFO L495 AbstractCegarLoop]: Abstraction has 7043 states and 7912 transitions. [2023-11-29 00:37:08,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:37:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 7912 transitions. [2023-11-29 00:37:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 00:37:08,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:37:08,534 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:37:08,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2023-11-29 00:37:08,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 00:37:08,734 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 00:37:08,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:37:08,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1080750051, now seen corresponding path program 3 times [2023-11-29 00:37:08,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:37:08,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063249366] [2023-11-29 00:37:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:37:08,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:37:08,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:37:08,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121193557] [2023-11-29 00:37:08,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:37:08,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:37:08,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:37:08,746 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:37:08,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb0bfbf0-818a-471d-ad5c-ecae2ca9b1d5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 00:37:08,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 00:37:08,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:37:08,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 00:37:08,864 INFO L285 TraceCheckSpWp]: Computing forward predicates...