./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/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_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/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_70bed7f1-aea5-44ad-94ee-09a1e5334b25/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 4cd3813e1162515d6dfe6f021a67e8bd41b689ea28e27900ea441d7fd3bbe5cc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:02:40,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:02:40,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:02:40,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:02:40,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:02:40,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:02:40,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:02:40,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:02:40,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:02:40,887 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:02:40,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:02:40,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:02:40,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:02:40,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:02:40,890 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:02:40,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:02:40,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:02:40,891 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:02:40,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:02:40,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:02:40,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:02:40,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:02:40,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:02:40,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:02:40,895 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:02:40,895 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:02:40,896 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:02:40,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:02:40,897 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:02:40,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:02:40,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:02:40,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:02:40,898 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:02:40,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:02:40,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:02:40,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:02:40,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:02:40,899 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:02:40,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:02:40,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:02:40,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:02:40,900 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:02:40,900 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:02:40,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:02:40,901 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_70bed7f1-aea5-44ad-94ee-09a1e5334b25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cd3813e1162515d6dfe6f021a67e8bd41b689ea28e27900ea441d7fd3bbe5cc [2023-11-29 03:02:41,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:02:41,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:02:41,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:02:41,154 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:02:41,155 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:02:41,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c [2023-11-29 03:02:43,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:02:44,032 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:02:44,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c [2023-11-29 03:02:44,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/data/f8dc9d077/17149ed7d7724f5fbf65f1603f69958d/FLAGf2f67e18e [2023-11-29 03:02:44,050 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/data/f8dc9d077/17149ed7d7724f5fbf65f1603f69958d [2023-11-29 03:02:44,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:02:44,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:02:44,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:02:44,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:02:44,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:02:44,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6280b483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44, skipping insertion in model container [2023-11-29 03:02:44,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:02:44,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:02:44,255 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:02:44,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:02:44,291 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:02:44,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44 WrapperNode [2023-11-29 03:02:44,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:02:44,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:02:44,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:02:44,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:02:44,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,339 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2023-11-29 03:02:44,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:02:44,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:02:44,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:02:44,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:02:44,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,355 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,368 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 03:02:44,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:02:44,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:02:44,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:02:44,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:02:44,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (1/1) ... [2023-11-29 03:02:44,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:02:44,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:44,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:02:44,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:02:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:02:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:02:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:02:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:02:44,511 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:02:44,513 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:02:45,017 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:02:45,043 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:02:45,043 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:02:45,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:02:45 BoogieIcfgContainer [2023-11-29 03:02:45,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:02:45,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:02:45,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:02:45,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:02:45,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:02:44" (1/3) ... [2023-11-29 03:02:45,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e6d420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:02:45, skipping insertion in model container [2023-11-29 03:02:45,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:02:44" (2/3) ... [2023-11-29 03:02:45,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40e6d420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:02:45, skipping insertion in model container [2023-11-29 03:02:45,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:02:45" (3/3) ... [2023-11-29 03:02:45,053 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound10.c [2023-11-29 03:02:45,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:02:45,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2023-11-29 03:02:45,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:02:45,122 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;@58d707bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:02:45,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-11-29 03:02:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 95 states have (on average 1.936842105263158) internal successors, (184), 179 states have internal predecessors, (184), 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 03:02:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 03:02:45,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:45,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:45,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:45,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:45,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1162004414, now seen corresponding path program 1 times [2023-11-29 03:02:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:45,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444785361] [2023-11-29 03:02:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:45,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:02:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 03:02:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:45,296 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 03:02:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:45,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444785361] [2023-11-29 03:02:45,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444785361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:45,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:45,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:02:45,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503406387] [2023-11-29 03:02:45,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:45,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:02:45,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:45,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:02:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:02:45,341 INFO L87 Difference]: Start difference. First operand has 187 states, 95 states have (on average 1.936842105263158) internal successors, (184), 179 states have internal predecessors, (184), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 03:02:45,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:45,379 INFO L93 Difference]: Finished difference Result 359 states and 390 transitions. [2023-11-29 03:02:45,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:02:45,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14 [2023-11-29 03:02:45,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:45,388 INFO L225 Difference]: With dead ends: 359 [2023-11-29 03:02:45,388 INFO L226 Difference]: Without dead ends: 171 [2023-11-29 03:02:45,392 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 03:02:45,395 INFO L413 NwaCegarLoop]: 175 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, 175 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 03:02:45,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:02:45,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-29 03:02:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-29 03:02:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 94 states have (on average 1.7553191489361701) internal successors, (165), 164 states have internal predecessors, (165), 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 03:02:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 173 transitions. [2023-11-29 03:02:45,439 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 173 transitions. Word has length 14 [2023-11-29 03:02:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:45,439 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 173 transitions. [2023-11-29 03:02:45,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 03:02:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 173 transitions. [2023-11-29 03:02:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 03:02:45,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:45,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:45,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:02:45,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:45,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1920324093, now seen corresponding path program 1 times [2023-11-29 03:02:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582470947] [2023-11-29 03:02:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:45,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:02:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 03:02:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:45,522 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 03:02:45,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582470947] [2023-11-29 03:02:45,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582470947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:45,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:45,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:02:45,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330813850] [2023-11-29 03:02:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:45,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:02:45,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:02:45,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:02:45,526 INFO L87 Difference]: Start difference. First operand 171 states and 173 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 03:02:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:45,954 INFO L93 Difference]: Finished difference Result 316 states and 320 transitions. [2023-11-29 03:02:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:02:45,955 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), 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 14 [2023-11-29 03:02:45,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:45,958 INFO L225 Difference]: With dead ends: 316 [2023-11-29 03:02:45,958 INFO L226 Difference]: Without dead ends: 260 [2023-11-29 03:02:45,959 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 03:02:45,961 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 90 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:45,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 124 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:02:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-29 03:02:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2023-11-29 03:02:45,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 168 states have (on average 1.505952380952381) internal successors, (253), 238 states have internal predecessors, (253), 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 03:02:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 263 transitions. [2023-11-29 03:02:45,982 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 263 transitions. Word has length 14 [2023-11-29 03:02:45,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:45,984 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 263 transitions. [2023-11-29 03:02:45,984 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), 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 03:02:45,984 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 263 transitions. [2023-11-29 03:02:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:02:45,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:45,986 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] [2023-11-29 03:02:45,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:02:45,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:45,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:45,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1713492121, now seen corresponding path program 1 times [2023-11-29 03:02:45,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:45,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788886071] [2023-11-29 03:02:45,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:45,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:46,006 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:46,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420553161] [2023-11-29 03:02:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:46,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:46,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:46,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:02:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:46,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:02:46,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:46,148 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 03:02:46,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:46,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:46,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788886071] [2023-11-29 03:02:46,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:46,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420553161] [2023-11-29 03:02:46,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420553161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:46,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:46,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:02:46,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288097123] [2023-11-29 03:02:46,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:46,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:02:46,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:46,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:02:46,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:02:46,153 INFO L87 Difference]: Start difference. First operand 246 states and 263 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 03:02:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:46,204 INFO L93 Difference]: Finished difference Result 246 states and 263 transitions. [2023-11-29 03:02:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:02:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 42 [2023-11-29 03:02:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:46,207 INFO L225 Difference]: With dead ends: 246 [2023-11-29 03:02:46,207 INFO L226 Difference]: Without dead ends: 243 [2023-11-29 03:02:46,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 03:02:46,209 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 124 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:46,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 156 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:02:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-29 03:02:46,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2023-11-29 03:02:46,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 168 states have (on average 1.4761904761904763) internal successors, (248), 235 states have internal predecessors, (248), 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 03:02:46,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 258 transitions. [2023-11-29 03:02:46,226 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 258 transitions. Word has length 42 [2023-11-29 03:02:46,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:46,227 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 258 transitions. [2023-11-29 03:02:46,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 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 03:02:46,227 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 258 transitions. [2023-11-29 03:02:46,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 03:02:46,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:46,229 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] [2023-11-29 03:02:46,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:02:46,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:46,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:46,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1578648303, now seen corresponding path program 1 times [2023-11-29 03:02:46,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:46,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654421916] [2023-11-29 03:02:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:46,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:46,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:46,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90795028] [2023-11-29 03:02:46,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:46,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:46,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:46,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:46,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:02:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:46,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:02:46,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:46,566 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 03:02:46,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:46,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:46,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654421916] [2023-11-29 03:02:46,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90795028] [2023-11-29 03:02:46,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90795028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:46,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:46,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:02:46,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669977167] [2023-11-29 03:02:46,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:46,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:02:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:02:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:02:46,569 INFO L87 Difference]: Start difference. First operand 243 states and 258 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 03:02:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:46,646 INFO L93 Difference]: Finished difference Result 268 states and 271 transitions. [2023-11-29 03:02:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:02:46,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 43 [2023-11-29 03:02:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:46,648 INFO L225 Difference]: With dead ends: 268 [2023-11-29 03:02:46,649 INFO L226 Difference]: Without dead ends: 266 [2023-11-29 03:02:46,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 03:02:46,650 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 66 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:46,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 290 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:02:46,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-29 03:02:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 243. [2023-11-29 03:02:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 168 states have (on average 1.4642857142857142) internal successors, (246), 235 states have internal predecessors, (246), 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 03:02:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 256 transitions. [2023-11-29 03:02:46,664 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 256 transitions. Word has length 43 [2023-11-29 03:02:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:46,665 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 256 transitions. [2023-11-29 03:02:46,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 03:02:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 256 transitions. [2023-11-29 03:02:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:02:46,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:46,667 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] [2023-11-29 03:02:46,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 03:02:46,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:46,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:46,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1693457243, now seen corresponding path program 1 times [2023-11-29 03:02:46,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:46,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783992752] [2023-11-29 03:02:46,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:46,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:46,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:46,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594677814] [2023-11-29 03:02:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:46,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:46,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:46,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:46,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:02:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:46,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:02:46,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:47,036 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 03:02:47,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:47,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:47,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783992752] [2023-11-29 03:02:47,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:47,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594677814] [2023-11-29 03:02:47,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594677814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:47,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:47,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:02:47,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747782911] [2023-11-29 03:02:47,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:47,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:02:47,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:47,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:02:47,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:02:47,038 INFO L87 Difference]: Start difference. First operand 243 states and 256 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 03:02:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:47,447 INFO L93 Difference]: Finished difference Result 266 states and 269 transitions. [2023-11-29 03:02:47,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:02:47,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 44 [2023-11-29 03:02:47,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:47,450 INFO L225 Difference]: With dead ends: 266 [2023-11-29 03:02:47,450 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 03:02:47,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 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 03:02:47,451 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 86 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:47,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 248 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:02:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 03:02:47,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 246. [2023-11-29 03:02:47,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 171 states have (on average 1.4385964912280702) internal successors, (246), 238 states have internal predecessors, (246), 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 03:02:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 256 transitions. [2023-11-29 03:02:47,463 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 256 transitions. Word has length 44 [2023-11-29 03:02:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:47,464 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 256 transitions. [2023-11-29 03:02:47,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 03:02:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 256 transitions. [2023-11-29 03:02:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:02:47,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:47,466 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 03:02:47,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:02:47,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:47,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:47,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash 957567089, now seen corresponding path program 1 times [2023-11-29 03:02:47,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:47,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135718596] [2023-11-29 03:02:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:47,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:47,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:47,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722268951] [2023-11-29 03:02:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:47,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:47,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:47,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:02:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:47,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:02:47,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:47,825 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 03:02:47,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:47,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:47,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135718596] [2023-11-29 03:02:47,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:47,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722268951] [2023-11-29 03:02:47,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722268951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:47,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:47,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:02:47,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930308791] [2023-11-29 03:02:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:47,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:02:47,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:47,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:02:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:02:47,827 INFO L87 Difference]: Start difference. First operand 246 states and 256 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 03:02:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:48,115 INFO L93 Difference]: Finished difference Result 246 states and 256 transitions. [2023-11-29 03:02:48,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:02:48,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 45 [2023-11-29 03:02:48,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:48,117 INFO L225 Difference]: With dead ends: 246 [2023-11-29 03:02:48,117 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:02:48,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 03:02:48,118 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 125 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:48,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 65 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:48,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:02:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 03:02:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 137 states have (on average 1.3722627737226278) internal successors, (188), 184 states have internal predecessors, (188), 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 03:02:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 198 transitions. [2023-11-29 03:02:48,129 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 198 transitions. Word has length 45 [2023-11-29 03:02:48,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:48,129 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 198 transitions. [2023-11-29 03:02:48,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 03:02:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 198 transitions. [2023-11-29 03:02:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:02:48,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:48,130 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, 1, 1, 1, 1] [2023-11-29 03:02:48,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:02:48,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:48,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:48,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:48,332 INFO L85 PathProgramCache]: Analyzing trace with hash -280525862, now seen corresponding path program 1 times [2023-11-29 03:02:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:48,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246019128] [2023-11-29 03:02:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:48,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:48,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:48,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725725267] [2023-11-29 03:02:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:48,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:48,346 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:48,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:02:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:48,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:02:48,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:48,471 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 03:02:48,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:48,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:48,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246019128] [2023-11-29 03:02:48,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:48,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725725267] [2023-11-29 03:02:48,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725725267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:48,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:48,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:02:48,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152943531] [2023-11-29 03:02:48,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:48,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:02:48,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:48,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:02:48,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:02:48,474 INFO L87 Difference]: Start difference. First operand 192 states and 198 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 03:02:48,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:48,490 INFO L93 Difference]: Finished difference Result 192 states and 198 transitions. [2023-11-29 03:02:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:02:48,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 54 [2023-11-29 03:02:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:48,492 INFO L225 Difference]: With dead ends: 192 [2023-11-29 03:02:48,492 INFO L226 Difference]: Without dead ends: 191 [2023-11-29 03:02:48,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 03:02:48,493 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 96 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:48,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 155 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:02:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-29 03:02:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2023-11-29 03:02:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 137 states have (on average 1.3576642335766422) internal successors, (186), 183 states have internal predecessors, (186), 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 03:02:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2023-11-29 03:02:48,504 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 54 [2023-11-29 03:02:48,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:48,504 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2023-11-29 03:02:48,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 03:02:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2023-11-29 03:02:48,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:02:48,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:48,506 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, 1, 1, 1, 1, 1] [2023-11-29 03:02:48,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 03:02:48,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:48,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:48,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:48,707 INFO L85 PathProgramCache]: Analyzing trace with hash -106367008, now seen corresponding path program 1 times [2023-11-29 03:02:48,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:48,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903694028] [2023-11-29 03:02:48,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:48,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:48,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:48,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787427699] [2023-11-29 03:02:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:48,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:48,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:48,719 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:48,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:02:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:48,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:02:48,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:48,818 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 03:02:48,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:48,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:48,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903694028] [2023-11-29 03:02:48,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:48,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787427699] [2023-11-29 03:02:48,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787427699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:48,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:48,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:02:48,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163411831] [2023-11-29 03:02:48,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:48,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:02:48,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:48,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:02:48,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:02:48,820 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 03:02:48,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:48,836 INFO L93 Difference]: Finished difference Result 192 states and 196 transitions. [2023-11-29 03:02:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:02:48,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 55 [2023-11-29 03:02:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:48,839 INFO L225 Difference]: With dead ends: 192 [2023-11-29 03:02:48,839 INFO L226 Difference]: Without dead ends: 191 [2023-11-29 03:02:48,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 03:02:48,840 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:48,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:02:48,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-29 03:02:48,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2023-11-29 03:02:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 137 states have (on average 1.3503649635036497) internal successors, (185), 183 states have internal predecessors, (185), 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 03:02:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 195 transitions. [2023-11-29 03:02:48,848 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 195 transitions. Word has length 55 [2023-11-29 03:02:48,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:48,848 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 195 transitions. [2023-11-29 03:02:48,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 03:02:48,848 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 195 transitions. [2023-11-29 03:02:48,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:02:48,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:48,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:48,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:02:49,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:49,053 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:49,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:49,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1964749084, now seen corresponding path program 1 times [2023-11-29 03:02:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561817444] [2023-11-29 03:02:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:49,061 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:49,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971653920] [2023-11-29 03:02:49,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:49,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:49,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:49,062 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:49,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:02:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:49,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:02:49,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:49,180 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 03:02:49,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:49,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561817444] [2023-11-29 03:02:49,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:49,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971653920] [2023-11-29 03:02:49,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971653920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:49,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:02:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633638040] [2023-11-29 03:02:49,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:49,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:02:49,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:02:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:02:49,182 INFO L87 Difference]: Start difference. First operand 191 states and 195 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 03:02:49,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:49,548 INFO L93 Difference]: Finished difference Result 322 states and 327 transitions. [2023-11-29 03:02:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:02:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 03:02:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:49,550 INFO L225 Difference]: With dead ends: 322 [2023-11-29 03:02:49,550 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 03:02:49,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:02:49,552 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 94 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:49,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 123 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:49,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 03:02:49,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 273. [2023-11-29 03:02:49,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.262672811059908) internal successors, (274), 263 states have internal predecessors, (274), 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 03:02:49,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 288 transitions. [2023-11-29 03:02:49,565 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 288 transitions. Word has length 59 [2023-11-29 03:02:49,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:49,565 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 288 transitions. [2023-11-29 03:02:49,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 03:02:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 288 transitions. [2023-11-29 03:02:49,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:02:49,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:49,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:49,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 03:02:49,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:49,770 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:49,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:49,770 INFO L85 PathProgramCache]: Analyzing trace with hash -69304982, now seen corresponding path program 1 times [2023-11-29 03:02:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:49,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705228233] [2023-11-29 03:02:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:49,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:49,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:49,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535237522] [2023-11-29 03:02:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:49,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:49,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:49,781 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:49,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:02:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:49,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:02:49,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:49,927 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 03:02:49,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:02:49,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705228233] [2023-11-29 03:02:49,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:49,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535237522] [2023-11-29 03:02:49,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535237522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:02:49,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:02:49,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:02:49,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328563714] [2023-11-29 03:02:49,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:02:49,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:02:49,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:49,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:02:49,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:02:49,930 INFO L87 Difference]: Start difference. First operand 273 states and 288 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 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 03:02:50,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:50,154 INFO L93 Difference]: Finished difference Result 274 states and 288 transitions. [2023-11-29 03:02:50,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:02:50,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 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 03:02:50,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:50,157 INFO L225 Difference]: With dead ends: 274 [2023-11-29 03:02:50,157 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 03:02:50,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 03:02:50,157 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 39 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:50,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 256 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:02:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 03:02:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-11-29 03:02:50,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.2580645161290323) internal successors, (273), 263 states have internal predecessors, (273), 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 03:02:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 287 transitions. [2023-11-29 03:02:50,169 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 287 transitions. Word has length 65 [2023-11-29 03:02:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:50,169 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 287 transitions. [2023-11-29 03:02:50,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 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 03:02:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 287 transitions. [2023-11-29 03:02:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 03:02:50,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:50,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:50,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:02:50,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:02:50,373 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:50,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash 809529056, now seen corresponding path program 1 times [2023-11-29 03:02:50,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:50,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650501547] [2023-11-29 03:02:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:50,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:50,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:50,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875844508] [2023-11-29 03:02:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:50,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:50,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:50,388 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:50,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:02:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:50,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:02:50,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:02:50,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:02:50,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:50,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650501547] [2023-11-29 03:02:50,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:50,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875844508] [2023-11-29 03:02:50,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875844508] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:50,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:02:50,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170263933] [2023-11-29 03:02:50,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:50,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:02:50,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:02:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:02:50,961 INFO L87 Difference]: Start difference. First operand 273 states and 287 transitions. Second operand has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 8 states have internal predecessors, (167), 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 03:02:51,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:51,605 INFO L93 Difference]: Finished difference Result 343 states and 350 transitions. [2023-11-29 03:02:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:02:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 8 states have internal predecessors, (167), 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 03:02:51,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:51,608 INFO L225 Difference]: With dead ends: 343 [2023-11-29 03:02:51,608 INFO L226 Difference]: Without dead ends: 340 [2023-11-29 03:02:51,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:02:51,609 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 293 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:51,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 263 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:02:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-29 03:02:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2023-11-29 03:02:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 257 states have (on average 1.2879377431906616) internal successors, (331), 302 states have internal predecessors, (331), 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 03:02:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 345 transitions. [2023-11-29 03:02:51,620 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 345 transitions. Word has length 96 [2023-11-29 03:02:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:51,620 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 345 transitions. [2023-11-29 03:02:51,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 8 states have internal predecessors, (167), 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 03:02:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 345 transitions. [2023-11-29 03:02:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 03:02:51,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:51,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:51,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 03:02:51,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:02:51,822 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:51,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -674402934, now seen corresponding path program 1 times [2023-11-29 03:02:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:51,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035348666] [2023-11-29 03:02:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:51,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:51,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522360911] [2023-11-29 03:02:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:51,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:51,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:51,837 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:51,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:02:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:51,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:02:51,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:02:52,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:53,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:53,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035348666] [2023-11-29 03:02:53,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:53,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522360911] [2023-11-29 03:02:53,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522360911] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:53,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:53,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:02:53,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261528552] [2023-11-29 03:02:53,048 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:53,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:02:53,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:53,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:02:53,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:02:53,049 INFO L87 Difference]: Start difference. First operand 312 states and 345 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 03:02:53,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:53,564 INFO L93 Difference]: Finished difference Result 323 states and 345 transitions. [2023-11-29 03:02:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:02:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 97 [2023-11-29 03:02:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:53,566 INFO L225 Difference]: With dead ends: 323 [2023-11-29 03:02:53,567 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 03:02:53,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:02:53,567 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 133 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:53,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 115 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:02:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 03:02:53,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 312. [2023-11-29 03:02:53,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 257 states have (on average 1.2684824902723735) internal successors, (326), 302 states have internal predecessors, (326), 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 03:02:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 340 transitions. [2023-11-29 03:02:53,578 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 340 transitions. Word has length 97 [2023-11-29 03:02:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:53,579 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 340 transitions. [2023-11-29 03:02:53,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 03:02:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 340 transitions. [2023-11-29 03:02:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 03:02:53,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:53,580 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, 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 03:02:53,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:02:53,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:02:53,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:53,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:53,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1531036241, now seen corresponding path program 1 times [2023-11-29 03:02:53,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:53,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15758972] [2023-11-29 03:02:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:53,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:53,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:53,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634371135] [2023-11-29 03:02:53,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:53,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:53,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:53,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:53,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:02:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:53,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:02:53,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:02:53,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:02:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15758972] [2023-11-29 03:02:54,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634371135] [2023-11-29 03:02:54,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634371135] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:54,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:54,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:02:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684146632] [2023-11-29 03:02:54,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:02:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:54,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:02:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:02:54,082 INFO L87 Difference]: Start difference. First operand 312 states and 340 transitions. Second operand has 6 states, 5 states have (on average 36.2) internal successors, (181), 6 states have internal predecessors, (181), 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 03:02:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:54,143 INFO L93 Difference]: Finished difference Result 536 states and 547 transitions. [2023-11-29 03:02:54,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:02:54,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 36.2) internal successors, (181), 6 states have internal predecessors, (181), 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 108 [2023-11-29 03:02:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:54,147 INFO L225 Difference]: With dead ends: 536 [2023-11-29 03:02:54,147 INFO L226 Difference]: Without dead ends: 535 [2023-11-29 03:02:54,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:02:54,148 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 210 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:54,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 644 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:02:54,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-29 03:02:54,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 369. [2023-11-29 03:02:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 312 states have (on average 1.314102564102564) internal successors, (410), 357 states have internal predecessors, (410), 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 03:02:54,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 428 transitions. [2023-11-29 03:02:54,167 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 428 transitions. Word has length 108 [2023-11-29 03:02:54,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:54,167 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 428 transitions. [2023-11-29 03:02:54,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 36.2) internal successors, (181), 6 states have internal predecessors, (181), 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 03:02:54,168 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 428 transitions. [2023-11-29 03:02:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:02:54,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:54,169 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, 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 03:02:54,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:02:54,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:54,370 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:54,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:54,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2059372331, now seen corresponding path program 1 times [2023-11-29 03:02:54,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:54,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825112909] [2023-11-29 03:02:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:54,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:54,380 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:54,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252493013] [2023-11-29 03:02:54,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:54,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:54,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:54,382 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:54,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:02:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:54,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:02:54,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:02:54,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:02:54,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:54,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825112909] [2023-11-29 03:02:54,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:54,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252493013] [2023-11-29 03:02:54,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252493013] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:02:54,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:02:54,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:02:54,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208342248] [2023-11-29 03:02:54,753 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:54,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:02:54,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:54,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:02:54,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:02:54,764 INFO L87 Difference]: Start difference. First operand 369 states and 428 transitions. Second operand has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 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 03:02:55,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:55,303 INFO L93 Difference]: Finished difference Result 443 states and 486 transitions. [2023-11-29 03:02:55,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:02:55,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 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 112 [2023-11-29 03:02:55,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:55,306 INFO L225 Difference]: With dead ends: 443 [2023-11-29 03:02:55,306 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 03:02:55,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:02:55,307 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 621 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:55,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 146 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:02:55,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 03:02:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 380. [2023-11-29 03:02:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 334 states have (on average 1.1826347305389222) internal successors, (395), 369 states have internal predecessors, (395), 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 03:02:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 411 transitions. [2023-11-29 03:02:55,324 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 411 transitions. Word has length 112 [2023-11-29 03:02:55,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:55,324 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 411 transitions. [2023-11-29 03:02:55,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 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 03:02:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 411 transitions. [2023-11-29 03:02:55,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 03:02:55,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:55,326 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:55,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:02:55,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:02:55,527 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:55,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:55,527 INFO L85 PathProgramCache]: Analyzing trace with hash -351277160, now seen corresponding path program 1 times [2023-11-29 03:02:55,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:55,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192028908] [2023-11-29 03:02:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:55,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:55,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:55,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330922675] [2023-11-29 03:02:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:55,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:55,541 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:55,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:02:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:55,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:02:55,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:02:55,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:02:57,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:02:57,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192028908] [2023-11-29 03:02:57,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:02:57,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330922675] [2023-11-29 03:02:57,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330922675] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:02:57,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:02:57,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:02:57,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005734494] [2023-11-29 03:02:57,689 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:02:57,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:02:57,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:02:57,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:02:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:02:57,691 INFO L87 Difference]: Start difference. First operand 380 states and 411 transitions. Second operand has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 7 states have internal predecessors, (127), 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 03:02:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:02:58,012 INFO L93 Difference]: Finished difference Result 386 states and 417 transitions. [2023-11-29 03:02:58,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:02:58,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 7 states have internal predecessors, (127), 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 146 [2023-11-29 03:02:58,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:02:58,016 INFO L225 Difference]: With dead ends: 386 [2023-11-29 03:02:58,016 INFO L226 Difference]: Without dead ends: 385 [2023-11-29 03:02:58,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:02:58,017 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 97 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:02:58,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 312 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:02:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-11-29 03:02:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2023-11-29 03:02:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 336 states have (on average 1.181547619047619) internal successors, (397), 371 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 03:02:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 415 transitions. [2023-11-29 03:02:58,035 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 415 transitions. Word has length 146 [2023-11-29 03:02:58,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:02:58,036 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 415 transitions. [2023-11-29 03:02:58,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 7 states have internal predecessors, (127), 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 03:02:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 415 transitions. [2023-11-29 03:02:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 03:02:58,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:02:58,038 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:02:58,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 03:02:58,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:02:58,239 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:02:58,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:02:58,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1995310146, now seen corresponding path program 1 times [2023-11-29 03:02:58,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:02:58,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417336573] [2023-11-29 03:02:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:58,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:02:58,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:02:58,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505723443] [2023-11-29 03:02:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:02:58,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:02:58,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:02:58,269 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:02:58,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:02:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:02:58,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:02:58,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:02:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:02:58,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:03:04,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:04,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417336573] [2023-11-29 03:03:04,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:04,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505723443] [2023-11-29 03:03:04,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505723443] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:03:04,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:03:04,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 03:03:04,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552442031] [2023-11-29 03:03:04,238 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:03:04,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:03:04,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:04,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:03:04,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=91, Unknown=1, NotChecked=0, Total=132 [2023-11-29 03:03:04,239 INFO L87 Difference]: Start difference. First operand 383 states and 415 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 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 03:03:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:04,499 INFO L93 Difference]: Finished difference Result 385 states and 416 transitions. [2023-11-29 03:03:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:03:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 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 147 [2023-11-29 03:03:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:04,502 INFO L225 Difference]: With dead ends: 385 [2023-11-29 03:03:04,502 INFO L226 Difference]: Without dead ends: 347 [2023-11-29 03:03:04,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=49, Invalid=106, Unknown=1, NotChecked=0, Total=156 [2023-11-29 03:03:04,502 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 94 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:04,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 305 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:03:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-29 03:03:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-29 03:03:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 301 states have (on average 1.1993355481727574) internal successors, (361), 336 states have internal predecessors, (361), 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 03:03:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 377 transitions. [2023-11-29 03:03:04,513 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 377 transitions. Word has length 147 [2023-11-29 03:03:04,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:04,513 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 377 transitions. [2023-11-29 03:03:04,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 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 03:03:04,514 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 377 transitions. [2023-11-29 03:03:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 03:03:04,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:04,515 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, 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] [2023-11-29 03:03:04,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:03:04,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:03:04,716 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:03:04,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:04,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1901356357, now seen corresponding path program 2 times [2023-11-29 03:03:04,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608249282] [2023-11-29 03:03:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:04,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:04,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:04,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836334802] [2023-11-29 03:03:04,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:03:04,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:04,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:04,731 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:04,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:03:04,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:03:04,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:03:04,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:03:04,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:03:05,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:03:05,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:05,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608249282] [2023-11-29 03:03:05,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:05,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836334802] [2023-11-29 03:03:05,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836334802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:05,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:05,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:03:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125275325] [2023-11-29 03:03:05,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:05,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:03:05,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:05,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:03:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:03:05,235 INFO L87 Difference]: Start difference. First operand 347 states and 377 transitions. Second operand has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 7 states have internal predecessors, (136), 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 03:03:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:05,544 INFO L93 Difference]: Finished difference Result 347 states and 377 transitions. [2023-11-29 03:03:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:03:05,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 7 states have internal predecessors, (136), 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 150 [2023-11-29 03:03:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:05,547 INFO L225 Difference]: With dead ends: 347 [2023-11-29 03:03:05,547 INFO L226 Difference]: Without dead ends: 330 [2023-11-29 03:03:05,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:03:05,548 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 118 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:05,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 98 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:03:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-29 03:03:05,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 327. [2023-11-29 03:03:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 298 states have (on average 1.1073825503355705) internal successors, (330), 316 states have internal predecessors, (330), 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 03:03:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 346 transitions. [2023-11-29 03:03:05,558 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 346 transitions. Word has length 150 [2023-11-29 03:03:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:05,559 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 346 transitions. [2023-11-29 03:03:05,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 7 states have internal predecessors, (136), 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 03:03:05,559 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 346 transitions. [2023-11-29 03:03:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-29 03:03:05,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:05,561 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:05,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:03:05,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:03:05,761 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:03:05,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1668062458, now seen corresponding path program 1 times [2023-11-29 03:03:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:05,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122666835] [2023-11-29 03:03:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:05,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:05,772 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:05,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974950906] [2023-11-29 03:03:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:05,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:05,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:05,774 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:05,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:03:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:05,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:03:05,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:03:06,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:03:06,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122666835] [2023-11-29 03:03:06,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974950906] [2023-11-29 03:03:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974950906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:03:06,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:03:06,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 03:03:06,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665847850] [2023-11-29 03:03:06,138 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:03:06,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:03:06,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:06,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:03:06,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:03:06,139 INFO L87 Difference]: Start difference. First operand 327 states and 346 transitions. Second operand has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 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 03:03:06,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:06,567 INFO L93 Difference]: Finished difference Result 399 states and 407 transitions. [2023-11-29 03:03:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:03:06,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 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 167 [2023-11-29 03:03:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:06,570 INFO L225 Difference]: With dead ends: 399 [2023-11-29 03:03:06,570 INFO L226 Difference]: Without dead ends: 396 [2023-11-29 03:03:06,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:03:06,570 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 122 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:06,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 106 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:03:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-29 03:03:06,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 327. [2023-11-29 03:03:06,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 298 states have (on average 1.0973154362416107) internal successors, (327), 316 states have internal predecessors, (327), 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 03:03:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 343 transitions. [2023-11-29 03:03:06,580 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 343 transitions. Word has length 167 [2023-11-29 03:03:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:06,581 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 343 transitions. [2023-11-29 03:03:06,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 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 03:03:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 343 transitions. [2023-11-29 03:03:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 03:03:06,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:06,582 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, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:06,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:03:06,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:03:06,783 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:03:06,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:06,783 INFO L85 PathProgramCache]: Analyzing trace with hash -985216376, now seen corresponding path program 1 times [2023-11-29 03:03:06,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:06,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346101528] [2023-11-29 03:03:06,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:06,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:06,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031591468] [2023-11-29 03:03:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:06,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:06,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:06,796 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:06,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:03:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:06,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 03:03:06,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:03:07,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:03:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:03:07,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:07,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346101528] [2023-11-29 03:03:07,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:07,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031591468] [2023-11-29 03:03:07,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031591468] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:03:07,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:03:07,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 03:03:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897061075] [2023-11-29 03:03:07,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:03:07,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:03:07,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:07,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:03:07,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:03:07,517 INFO L87 Difference]: Start difference. First operand 327 states and 343 transitions. Second operand has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 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 03:03:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:08,146 INFO L93 Difference]: Finished difference Result 408 states and 427 transitions. [2023-11-29 03:03:08,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:03:08,146 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 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 169 [2023-11-29 03:03:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:08,149 INFO L225 Difference]: With dead ends: 408 [2023-11-29 03:03:08,149 INFO L226 Difference]: Without dead ends: 395 [2023-11-29 03:03:08,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:03:08,149 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 410 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:08,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 266 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:03:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-29 03:03:08,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 312. [2023-11-29 03:03:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 292 states have (on average 1.047945205479452) internal successors, (306), 301 states have internal predecessors, (306), 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 03:03:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 322 transitions. [2023-11-29 03:03:08,165 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 322 transitions. Word has length 169 [2023-11-29 03:03:08,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:08,166 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 322 transitions. [2023-11-29 03:03:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 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 03:03:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 322 transitions. [2023-11-29 03:03:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 03:03:08,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:08,167 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, 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, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:08,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:03:08,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:08,368 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:03:08,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:08,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1900127734, now seen corresponding path program 1 times [2023-11-29 03:03:08,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:08,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806639711] [2023-11-29 03:03:08,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:08,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:08,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:08,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448831064] [2023-11-29 03:03:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:08,380 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:08,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:03:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:03:08,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:03:08,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:08,885 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:03:08,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:03:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 03:03:09,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:09,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806639711] [2023-11-29 03:03:09,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:09,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448831064] [2023-11-29 03:03:09,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448831064] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:03:09,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:03:09,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:03:09,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039986769] [2023-11-29 03:03:09,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:03:09,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:03:09,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:09,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:03:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:03:09,427 INFO L87 Difference]: Start difference. First operand 312 states and 322 transitions. Second operand has 14 states, 13 states have (on average 22.846153846153847) internal successors, (297), 14 states have internal predecessors, (297), 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 03:03:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:11,105 INFO L93 Difference]: Finished difference Result 574 states and 589 transitions. [2023-11-29 03:03:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:03:11,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 22.846153846153847) internal successors, (297), 14 states have internal predecessors, (297), 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 171 [2023-11-29 03:03:11,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:11,109 INFO L225 Difference]: With dead ends: 574 [2023-11-29 03:03:11,109 INFO L226 Difference]: Without dead ends: 573 [2023-11-29 03:03:11,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=179, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:03:11,110 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 511 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:11,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 195 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:03:11,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-29 03:03:11,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 420. [2023-11-29 03:03:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 398 states have (on average 1.0628140703517588) internal successors, (423), 407 states have internal predecessors, (423), 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 03:03:11,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 443 transitions. [2023-11-29 03:03:11,127 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 443 transitions. Word has length 171 [2023-11-29 03:03:11,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:11,128 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 443 transitions. [2023-11-29 03:03:11,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 22.846153846153847) internal successors, (297), 14 states have internal predecessors, (297), 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 03:03:11,128 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 443 transitions. [2023-11-29 03:03:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 03:03:11,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:11,129 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:03:11,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 03:03:11,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:11,330 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:03:11,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 396242567, now seen corresponding path program 2 times [2023-11-29 03:03:11,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:11,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646634080] [2023-11-29 03:03:11,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:11,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:11,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:11,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199248998] [2023-11-29 03:03:11,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:03:11,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:11,344 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:11,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:03:11,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:03:11,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:03:11,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:03:11,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-29 03:03:12,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:03:12,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:03:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646634080] [2023-11-29 03:03:12,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:03:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199248998] [2023-11-29 03:03:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199248998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:03:12,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:03:12,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:03:12,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752013860] [2023-11-29 03:03:12,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:03:12,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:03:12,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:03:12,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:03:12,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:03:12,178 INFO L87 Difference]: Start difference. First operand 420 states and 443 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:03:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:03:12,296 INFO L93 Difference]: Finished difference Result 420 states and 443 transitions. [2023-11-29 03:03:12,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:03:12,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2023-11-29 03:03:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:03:12,299 INFO L225 Difference]: With dead ends: 420 [2023-11-29 03:03:12,299 INFO L226 Difference]: Without dead ends: 381 [2023-11-29 03:03:12,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 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 03:03:12,300 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 61 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:03:12,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 44 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:03:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-29 03:03:12,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2023-11-29 03:03:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 362 states have (on average 1.058011049723757) internal successors, (383), 369 states have internal predecessors, (383), 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 03:03:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 401 transitions. [2023-11-29 03:03:12,321 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 401 transitions. Word has length 199 [2023-11-29 03:03:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:03:12,321 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 401 transitions. [2023-11-29 03:03:12,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:03:12,321 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 401 transitions. [2023-11-29 03:03:12,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-29 03:03:12,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:03:12,323 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, 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] [2023-11-29 03:03:12,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:03:12,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 03:03:12,523 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:03:12,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:03:12,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1769144768, now seen corresponding path program 2 times [2023-11-29 03:03:12,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:03:12,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280409922] [2023-11-29 03:03:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:03:12,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:03:12,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:03:12,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447186317] [2023-11-29 03:03:12,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:03:12,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:03:12,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:03:12,537 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:03:12,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:03:12,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:03:12,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:03:12,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:03:12,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:03:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 240 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:03:12,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:03:21,117 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse0 .cse1 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) (not (= (mod (+ .cse0 .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) is different from false [2023-11-29 03:03:29,273 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:03:41,308 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:03:50,920 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:04:16,458 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:05:23,053 WARN L293 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:06:44,818 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:06:57,150 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 30) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 45) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 130) .cse0 (* |c_ULTIMATE.start_main_~y~0#1| 119)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 32) (* 8 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) 307445734561825844) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10) (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse0) 30) 0)))) is different from false [2023-11-29 03:07:23,477 WARN L293 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:07:38,461 WARN L293 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:11:47,318 WARN L293 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:12:32,444 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:13:23,036 WARN L293 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 03:13:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 10 trivial. 204 not checked. [2023-11-29 03:13:55,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:13:55,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280409922] [2023-11-29 03:13:55,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:13:55,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447186317] [2023-11-29 03:13:55,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447186317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:13:55,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:13:55,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 03:13:55,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35856200] [2023-11-29 03:13:55,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:13:55,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:13:55,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:13:55,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:13:55,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=165, Unknown=5, NotChecked=54, Total=272 [2023-11-29 03:13:55,669 INFO L87 Difference]: Start difference. First operand 381 states and 401 transitions. Second operand has 17 states, 16 states have (on average 22.75) internal successors, (364), 17 states have internal predecessors, (364), 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 03:14:04,464 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse8 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse9 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (let ((.cse4 (not (= (mod (+ .cse8 .cse9 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0))) (.cse5 (* .cse1 6)) (.cse6 (* |c_ULTIMATE.start_main_~y~0#1| 4)) (.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse7 (* 4 .cse3))) (and (< (+ |c_ULTIMATE.start_main_~x~0#1| .cse0) 307445734561825861) (or (< (+ (* .cse1 30) .cse0 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 45) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 130) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| 119)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 32) (* 8 .cse3)) 307445734561825844) .cse4) (or .cse4 (< (+ (* .cse1 84) .cse0 (* 12 .cse3) (div (+ (* |c_ULTIMATE.start_main_~y~0#1| 719) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 370) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 75)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 120)) 307445734561825763)) (or (< (+ .cse5 .cse6 .cse0 .cse7 (div (+ .cse8 .cse9 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) .cse4) (< (+ .cse5 |c_ULTIMATE.start_main_~x~0#1| .cse6 .cse0 .cse7) 307445734561825860) (= |c_ULTIMATE.start_main_~x~0#1| 98)))) is different from false [2023-11-29 03:14:08,480 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse6 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (mod (+ .cse5 .cse6 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) (and (or (< (+ (* .cse0 30) .cse1 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 45) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 130) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| 119)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 32) (* 8 .cse3)) 307445734561825844) .cse4) (or .cse4 (< (+ (* .cse0 84) .cse1 (* 12 .cse3) (div (+ (* |c_ULTIMATE.start_main_~y~0#1| 719) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 370) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 75)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 120)) 307445734561825763)) (or (< (+ (* .cse0 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) .cse1 (* 4 .cse3) (div (+ .cse5 .cse6 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) .cse4) (= |c_ULTIMATE.start_main_~x~0#1| 98)))) is different from false [2023-11-29 03:14:12,657 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse6 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (mod (+ .cse5 .cse6 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) (and (or (< (+ (* .cse0 30) .cse1 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 45) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 130) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| 119)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 32) (* 8 .cse3)) 307445734561825844) .cse4) (or .cse4 (< (+ (* .cse0 84) .cse1 (* 12 .cse3) (div (+ (* |c_ULTIMATE.start_main_~y~0#1| 719) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 370) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 75)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 120)) 307445734561825763)) (or (< (+ (* .cse0 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) .cse1 (* 4 .cse3) (div (+ .cse5 .cse6 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) .cse4)))) is different from false [2023-11-29 03:14:22,122 WARN L293 SmtUtils]: Spent 7.29s on a formula simplification. DAG size of input: 62 DAG size of output: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:14:23,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:14:27,507 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse6 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (mod (+ .cse5 .cse6 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) (and (< (+ |c_ULTIMATE.start_main_~x~0#1| .cse0) 307445734561825861) (or (< (+ (* .cse1 30) .cse0 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 45) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 130) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| 119)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 32) (* 8 .cse3)) 307445734561825844) .cse4) (or (< (+ (* .cse1 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) .cse0 (* 4 .cse3) (div (+ .cse5 .cse6 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) .cse4)))) is different from false [2023-11-29 03:14:31,525 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse6 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (.cse4 (not (= (mod (+ .cse5 .cse6 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) (and (or (< (+ (* .cse0 30) .cse1 (div (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 45) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 130) .cse2 (* |c_ULTIMATE.start_main_~y~0#1| 119)) 30) (* |c_ULTIMATE.start_main_~y~0#1| 32) (* 8 .cse3)) 307445734561825844) .cse4) (<= |c_ULTIMATE.start_main_~x~0#1| 307445734561825860) (or (< (+ (* .cse0 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) .cse1 (* 4 .cse3) (div (+ .cse5 .cse6 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) .cse4)))) is different from false [2023-11-29 03:15:18,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:15:23,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:04,356 WARN L293 SmtUtils]: Spent 12.33s on a formula simplification. DAG size of input: 47 DAG size of output: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 03:16:08,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:09,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:14,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:18,471 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 [] [2023-11-29 03:16:22,495 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (and (< (+ |c_ULTIMATE.start_main_~x~0#1| .cse0) 307445734561825861) (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse3 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) .cse0 (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse1 .cse2 .cse3 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) (not (= (mod (+ .cse1 .cse2 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse3) 30) 0)))))) is different from false [2023-11-29 03:16:27,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:31,894 WARN L854 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~x~0#1| 307445734561825860) (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse0 .cse1 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) (not (= (mod (+ .cse0 .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0))))) is different from false [2023-11-29 03:16:32,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:38,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:39,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:41,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:16:44,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:44,032 INFO L93 Difference]: Finished difference Result 458 states and 474 transitions. [2023-11-29 03:16:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 03:16:44,033 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 22.75) internal successors, (364), 17 states have internal predecessors, (364), 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 202 [2023-11-29 03:16:44,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:44,036 INFO L225 Difference]: With dead ends: 458 [2023-11-29 03:16:44,036 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 03:16:44,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 390 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 172.2s TimeCoverageRelationStatistics Valid=153, Invalid=512, Unknown=21, NotChecked=504, Total=1190 [2023-11-29 03:16:44,038 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 247 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 14 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 2137 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:44,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 272 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1303 Invalid, 6 Unknown, 2137 Unchecked, 38.9s Time] [2023-11-29 03:16:44,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 03:16:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 412. [2023-11-29 03:16:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 393 states have (on average 1.0534351145038168) internal successors, (414), 400 states have internal predecessors, (414), 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 03:16:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 432 transitions. [2023-11-29 03:16:44,063 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 432 transitions. Word has length 202 [2023-11-29 03:16:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:44,063 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 432 transitions. [2023-11-29 03:16:44,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 22.75) internal successors, (364), 17 states have internal predecessors, (364), 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 03:16:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 432 transitions. [2023-11-29 03:16:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-29 03:16:44,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:44,066 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:16:44,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:16:44,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:44,266 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:16:44,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:44,267 INFO L85 PathProgramCache]: Analyzing trace with hash -114569319, now seen corresponding path program 1 times [2023-11-29 03:16:44,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:16:44,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093101867] [2023-11-29 03:16:44,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:44,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:16:44,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:16:44,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1684712881] [2023-11-29 03:16:44,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:44,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:44,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:16:44,284 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:16:44,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:16:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:16:45,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:16:45,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:16:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 03:16:45,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:16:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 03:16:46,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:16:46,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093101867] [2023-11-29 03:16:46,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:16:46,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684712881] [2023-11-29 03:16:46,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684712881] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:16:46,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:16:46,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 03:16:46,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959014755] [2023-11-29 03:16:46,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:16:46,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:16:46,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:16:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:16:46,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:16:46,308 INFO L87 Difference]: Start difference. First operand 412 states and 432 transitions. Second operand has 12 states, 11 states have (on average 37.36363636363637) internal successors, (411), 12 states have internal predecessors, (411), 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 03:16:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:47,361 INFO L93 Difference]: Finished difference Result 435 states and 451 transitions. [2023-11-29 03:16:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:16:47,362 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 37.36363636363637) internal successors, (411), 12 states have internal predecessors, (411), 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 233 [2023-11-29 03:16:47,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:47,365 INFO L225 Difference]: With dead ends: 435 [2023-11-29 03:16:47,365 INFO L226 Difference]: Without dead ends: 412 [2023-11-29 03:16:47,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:16:47,366 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 215 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:47,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 295 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:16:47,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-29 03:16:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2023-11-29 03:16:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 393 states have (on average 1.0330788804071247) internal successors, (406), 398 states have internal predecessors, (406), 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 03:16:47,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 424 transitions. [2023-11-29 03:16:47,406 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 424 transitions. Word has length 233 [2023-11-29 03:16:47,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:47,407 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 424 transitions. [2023-11-29 03:16:47,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 37.36363636363637) internal successors, (411), 12 states have internal predecessors, (411), 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 03:16:47,408 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 424 transitions. [2023-11-29 03:16:47,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 03:16:47,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:47,410 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, 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, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:16:47,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:16:47,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:47,611 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:16:47,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash 583432480, now seen corresponding path program 2 times [2023-11-29 03:16:47,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:16:47,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949236876] [2023-11-29 03:16:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:47,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:16:47,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:16:47,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013888376] [2023-11-29 03:16:47,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:16:47,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:47,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:16:47,637 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:16:47,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:16:47,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:16:47,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:16:47,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:16:47,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:16:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-11-29 03:16:48,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:16:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-11-29 03:16:48,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:16:48,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949236876] [2023-11-29 03:16:48,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:16:48,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013888376] [2023-11-29 03:16:48,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013888376] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:16:48,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:16:48,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 03:16:48,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097639235] [2023-11-29 03:16:48,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:16:48,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:16:48,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:16:48,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:16:48,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:16:48,564 INFO L87 Difference]: Start difference. First operand 410 states and 424 transitions. Second operand has 6 states, 5 states have (on average 22.4) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:16:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:48,620 INFO L93 Difference]: Finished difference Result 410 states and 424 transitions. [2023-11-29 03:16:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:16:48,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 267 [2023-11-29 03:16:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:48,624 INFO L225 Difference]: With dead ends: 410 [2023-11-29 03:16:48,624 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 03:16:48,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:16:48,625 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 149 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:48,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 178 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:16:48,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 03:16:48,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-11-29 03:16:48,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.025445292620865) internal successors, (403), 397 states have internal predecessors, (403), 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 03:16:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 421 transitions. [2023-11-29 03:16:48,652 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 421 transitions. Word has length 267 [2023-11-29 03:16:48,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:48,653 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 421 transitions. [2023-11-29 03:16:48,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:16:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 421 transitions. [2023-11-29 03:16:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-29 03:16:48,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:48,655 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:16:48,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:16:48,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 03:16:48,856 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:16:48,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:48,856 INFO L85 PathProgramCache]: Analyzing trace with hash -879335156, now seen corresponding path program 1 times [2023-11-29 03:16:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:16:48,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350837678] [2023-11-29 03:16:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:16:48,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:16:48,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70884191] [2023-11-29 03:16:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:48,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:48,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:16:48,880 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:16:48,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:16:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:16:50,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:16:50,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:16:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 0 proven. 545 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 03:16:50,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:16:51,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:16:51,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350837678] [2023-11-29 03:16:51,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:16:51,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70884191] [2023-11-29 03:16:51,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70884191] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:16:51,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:16:51,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 03:16:51,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164941536] [2023-11-29 03:16:51,010 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:16:51,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:16:51,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:16:51,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:16:51,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:16:51,012 INFO L87 Difference]: Start difference. First operand 409 states and 421 transitions. Second operand has 8 states, 7 states have (on average 37.0) internal successors, (259), 8 states have internal predecessors, (259), 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 03:16:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:51,495 INFO L93 Difference]: Finished difference Result 430 states and 439 transitions. [2023-11-29 03:16:51,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:16:51,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 37.0) internal successors, (259), 8 states have internal predecessors, (259), 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 288 [2023-11-29 03:16:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:51,498 INFO L225 Difference]: With dead ends: 430 [2023-11-29 03:16:51,498 INFO L226 Difference]: Without dead ends: 429 [2023-11-29 03:16:51,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:16:51,499 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 47 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:51,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 99 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:16:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-11-29 03:16:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 409. [2023-11-29 03:16:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.0229007633587786) internal successors, (402), 397 states have internal predecessors, (402), 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 03:16:51,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 420 transitions. [2023-11-29 03:16:51,538 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 420 transitions. Word has length 288 [2023-11-29 03:16:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:51,539 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 420 transitions. [2023-11-29 03:16:51,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 37.0) internal successors, (259), 8 states have internal predecessors, (259), 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 03:16:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 420 transitions. [2023-11-29 03:16:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-11-29 03:16:51,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:51,543 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:16:51,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:16:51,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:16:51,746 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:16:51,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:51,746 INFO L85 PathProgramCache]: Analyzing trace with hash 722767380, now seen corresponding path program 1 times [2023-11-29 03:16:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:16:51,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965509550] [2023-11-29 03:16:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:51,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:16:51,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:16:51,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947456010] [2023-11-29 03:16:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:51,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:51,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:16:51,767 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:16:51,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:16:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:16:52,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:16:52,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:16:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 03:16:53,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:16:54,168 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 03:16:54,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:16:54,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965509550] [2023-11-29 03:16:54,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:16:54,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947456010] [2023-11-29 03:16:54,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947456010] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:16:54,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:16:54,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 03:16:54,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587554520] [2023-11-29 03:16:54,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:16:54,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:16:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:16:54,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:16:54,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:16:54,173 INFO L87 Difference]: Start difference. First operand 409 states and 420 transitions. Second operand has 14 states, 13 states have (on average 40.53846153846154) internal successors, (527), 14 states have internal predecessors, (527), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 03:16:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:55,452 INFO L93 Difference]: Finished difference Result 428 states and 438 transitions. [2023-11-29 03:16:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:16:55,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 40.53846153846154) internal successors, (527), 14 states have internal predecessors, (527), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 296 [2023-11-29 03:16:55,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:55,455 INFO L225 Difference]: With dead ends: 428 [2023-11-29 03:16:55,455 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 03:16:55,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:16:55,456 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 216 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:55,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 382 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:16:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 03:16:55,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2023-11-29 03:16:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 375 states have (on average 1.0106666666666666) internal successors, (379), 377 states have internal predecessors, (379), 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 03:16:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 397 transitions. [2023-11-29 03:16:55,492 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 397 transitions. Word has length 296 [2023-11-29 03:16:55,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:55,493 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 397 transitions. [2023-11-29 03:16:55,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 40.53846153846154) internal successors, (527), 14 states have internal predecessors, (527), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 03:16:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 397 transitions. [2023-11-29 03:16:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-11-29 03:16:55,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:55,496 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:16:55,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 03:16:55,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:16:55,696 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:16:55,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:55,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1883346501, now seen corresponding path program 2 times [2023-11-29 03:16:55,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:16:55,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975393150] [2023-11-29 03:16:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:16:55,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:16:55,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860358536] [2023-11-29 03:16:55,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:16:55,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:55,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:16:55,717 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:16:55,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:16:56,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:16:56,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:16:56,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:16:56,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:16:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 03:16:56,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:16:56,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:16:56,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975393150] [2023-11-29 03:16:56,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:16:56,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860358536] [2023-11-29 03:16:56,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860358536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:16:56,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:16:56,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:16:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741015995] [2023-11-29 03:16:56,923 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:16:56,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:16:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:16:56,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:16:56,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:16:56,925 INFO L87 Difference]: Start difference. First operand 389 states and 397 transitions. Second operand has 9 states, 8 states have (on average 38.375) internal successors, (307), 9 states have internal predecessors, (307), 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 03:16:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:16:57,436 INFO L93 Difference]: Finished difference Result 400 states and 408 transitions. [2023-11-29 03:16:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:16:57,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 38.375) internal successors, (307), 9 states have internal predecessors, (307), 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 341 [2023-11-29 03:16:57,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:16:57,440 INFO L225 Difference]: With dead ends: 400 [2023-11-29 03:16:57,440 INFO L226 Difference]: Without dead ends: 399 [2023-11-29 03:16:57,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:16:57,441 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 29 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:16:57,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:16:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-29 03:16:57,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 389. [2023-11-29 03:16:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 375 states have (on average 1.008) internal successors, (378), 377 states have internal predecessors, (378), 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 03:16:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 396 transitions. [2023-11-29 03:16:57,483 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 396 transitions. Word has length 341 [2023-11-29 03:16:57,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:16:57,483 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 396 transitions. [2023-11-29 03:16:57,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 38.375) internal successors, (307), 9 states have internal predecessors, (307), 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 03:16:57,483 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 396 transitions. [2023-11-29 03:16:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-11-29 03:16:57,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:16:57,486 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:16:57,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 03:16:57,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 03:16:57,686 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:16:57,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:16:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash -640697526, now seen corresponding path program 2 times [2023-11-29 03:16:57,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:16:57,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101304098] [2023-11-29 03:16:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:16:57,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:16:57,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:16:57,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757330656] [2023-11-29 03:16:57,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:16:57,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:16:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:16:57,705 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:16:57,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:17:01,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:17:01,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:17:01,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:17:01,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:17:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2023-11-29 03:17:06,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:17:06,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:17:06,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101304098] [2023-11-29 03:17:06,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:17:06,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757330656] [2023-11-29 03:17:06,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757330656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:17:06,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:17:06,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:17:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367067966] [2023-11-29 03:17:06,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:17:06,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:17:06,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:17:06,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:17:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:17:06,798 INFO L87 Difference]: Start difference. First operand 389 states and 396 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:17:12,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:17:18,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:17:22,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:17:26,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:17:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:26,814 INFO L93 Difference]: Finished difference Result 391 states and 398 transitions. [2023-11-29 03:17:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:17:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 383 [2023-11-29 03:17:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:26,817 INFO L225 Difference]: With dead ends: 391 [2023-11-29 03:17:26,817 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 03:17:26,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:17:26,818 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 129 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:26,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 77 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 297 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2023-11-29 03:17:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 03:17:26,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 388. [2023-11-29 03:17:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 375 states have (on average 1.0053333333333334) internal successors, (377), 376 states have internal predecessors, (377), 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 03:17:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 395 transitions. [2023-11-29 03:17:26,842 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 395 transitions. Word has length 383 [2023-11-29 03:17:26,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:26,843 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 395 transitions. [2023-11-29 03:17:26,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 10 states have internal predecessors, (97), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 03:17:26,843 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 395 transitions. [2023-11-29 03:17:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2023-11-29 03:17:26,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:26,845 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:17:26,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:17:27,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:17:27,046 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-29 03:17:27,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash -312346516, now seen corresponding path program 3 times [2023-11-29 03:17:27,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:27,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98454373] [2023-11-29 03:17:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:27,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:27,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:17:27,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998963328] [2023-11-29 03:17:27,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:17:27,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:17:27,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:17:27,065 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:17:27,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bed7f1-aea5-44ad-94ee-09a1e5334b25/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process