./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/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_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/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_f5cf0fd7-51e9-4d08-94e5-1e162f279736/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 3d9847fe213bf8df5d23c53d2bc8b53fb384c85820b87c09591484702dabefc3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:48:48,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:48:49,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:48:49,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:48:49,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:48:49,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:48:49,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:48:49,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:48:49,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:48:49,060 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:48:49,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:48:49,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:48:49,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:48:49,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:48:49,063 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:48:49,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:48:49,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:48:49,065 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:48:49,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:48:49,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:48:49,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:48:49,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:48:49,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:48:49,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:48:49,068 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:48:49,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:48:49,069 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:48:49,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:48:49,069 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:48:49,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:48:49,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:48:49,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:48:49,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:48:49,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:48:49,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:48:49,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:48:49,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:48:49,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:48:49,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:48:49,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:48:49,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:48:49,073 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:48:49,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:48:49,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:48:49,073 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_f5cf0fd7-51e9-4d08-94e5-1e162f279736/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d9847fe213bf8df5d23c53d2bc8b53fb384c85820b87c09591484702dabefc3 [2023-11-29 05:48:49,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:48:49,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:48:49,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:48:49,344 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:48:49,344 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:48:49,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2023-11-29 05:48:52,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:48:52,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:48:52,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2023-11-29 05:48:52,319 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/data/34536603d/2d470902113a421cb4eb49002dca9f1a/FLAG4557ec31e [2023-11-29 05:48:52,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/data/34536603d/2d470902113a421cb4eb49002dca9f1a [2023-11-29 05:48:52,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:48:52,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:48:52,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:48:52,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:48:52,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:48:52,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4418dca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52, skipping insertion in model container [2023-11-29 05:48:52,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:48:52,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:48:52,568 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:48:52,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:48:52,607 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:48:52,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52 WrapperNode [2023-11-29 05:48:52,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:48:52,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:48:52,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:48:52,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:48:52,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,651 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2023-11-29 05:48:52,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:48:52,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:48:52,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:48:52,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:48:52,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,678 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 05:48:52,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:48:52,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:48:52,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:48:52,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:48:52,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (1/1) ... [2023-11-29 05:48:52,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:48:52,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:52,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:48:52,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:48:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:48:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:48:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:48:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:48:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:48:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:48:52,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:48:52,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:48:52,818 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:48:52,820 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:48:53,162 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:48:53,189 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:48:53,190 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:48:53,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:48:53 BoogieIcfgContainer [2023-11-29 05:48:53,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:48:53,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:48:53,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:48:53,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:48:53,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:48:52" (1/3) ... [2023-11-29 05:48:53,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701555c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:48:53, skipping insertion in model container [2023-11-29 05:48:53,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:48:52" (2/3) ... [2023-11-29 05:48:53,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701555c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:48:53, skipping insertion in model container [2023-11-29 05:48:53,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:48:53" (3/3) ... [2023-11-29 05:48:53,199 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound10.c [2023-11-29 05:48:53,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:48:53,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-29 05:48:53,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:48:53,270 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;@51c5d3ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:48:53,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 05:48:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 69 states have (on average 1.8985507246376812) internal successors, (131), 125 states have internal predecessors, (131), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 05:48:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 05:48:53,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:48:53,283 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:53,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:48:53,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:53,289 INFO L85 PathProgramCache]: Analyzing trace with hash 38741639, now seen corresponding path program 1 times [2023-11-29 05:48:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955338058] [2023-11-29 05:48:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:53,395 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:48:53,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118378668] [2023-11-29 05:48:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:53,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:53,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:53,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:48:53,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:48:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:53,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:48:53,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:48:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:48:53,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:48:53,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:53,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955338058] [2023-11-29 05:48:53,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:48:53,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118378668] [2023-11-29 05:48:53,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118378668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:53,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:53,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:48:53,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066349498] [2023-11-29 05:48:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:53,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:48:53,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:53,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:48:53,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:48:53,591 INFO L87 Difference]: Start difference. First operand has 139 states, 69 states have (on average 1.8985507246376812) internal successors, (131), 125 states have internal predecessors, (131), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:53,850 INFO L93 Difference]: Finished difference Result 393 states and 451 transitions. [2023-11-29 05:48:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:48:53,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2023-11-29 05:48:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:48:53,865 INFO L225 Difference]: With dead ends: 393 [2023-11-29 05:48:53,865 INFO L226 Difference]: Without dead ends: 251 [2023-11-29 05:48:53,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 05:48:53,873 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 108 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:48:53,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:48:53,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-29 05:48:53,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 174. [2023-11-29 05:48:53,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 101 states have (on average 1.8613861386138615) internal successors, (188), 156 states have internal predecessors, (188), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:48:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 218 transitions. [2023-11-29 05:48:53,927 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 218 transitions. Word has length 25 [2023-11-29 05:48:53,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:48:53,928 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 218 transitions. [2023-11-29 05:48:53,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 218 transitions. [2023-11-29 05:48:53,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 05:48:53,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:48:53,931 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:53,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:48:54,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:54,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:48:54,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1200990860, now seen corresponding path program 1 times [2023-11-29 05:48:54,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:54,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598009850] [2023-11-29 05:48:54,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:54,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:54,152 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:48:54,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104846247] [2023-11-29 05:48:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:54,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:54,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:54,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:48:54,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:48:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:54,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:48:54,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:48:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:48:54,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:48:54,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:54,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598009850] [2023-11-29 05:48:54,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:48:54,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104846247] [2023-11-29 05:48:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104846247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:54,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:54,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:48:54,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468050824] [2023-11-29 05:48:54,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:54,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:48:54,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:48:54,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:48:54,244 INFO L87 Difference]: Start difference. First operand 174 states and 218 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:54,451 INFO L93 Difference]: Finished difference Result 251 states and 267 transitions. [2023-11-29 05:48:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:48:54,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2023-11-29 05:48:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:48:54,454 INFO L225 Difference]: With dead ends: 251 [2023-11-29 05:48:54,454 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 05:48:54,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 05:48:54,456 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:48:54,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 145 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:48:54,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 05:48:54,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 175. [2023-11-29 05:48:54,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 102 states have (on average 1.8431372549019607) internal successors, (188), 157 states have internal predecessors, (188), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:48:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2023-11-29 05:48:54,476 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 26 [2023-11-29 05:48:54,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:48:54,477 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2023-11-29 05:48:54,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:54,478 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2023-11-29 05:48:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 05:48:54,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:48:54,479 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:54,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:48:54,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:54,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:48:54,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:54,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1423988951, now seen corresponding path program 1 times [2023-11-29 05:48:54,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:54,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860962739] [2023-11-29 05:48:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:54,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:54,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:48:54,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385548880] [2023-11-29 05:48:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:54,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:54,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:54,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:48:54,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:48:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:54,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:48:54,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:48:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:48:54,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:48:54,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:54,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860962739] [2023-11-29 05:48:54,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:48:54,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385548880] [2023-11-29 05:48:54,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385548880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:54,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:54,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:48:54,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522627334] [2023-11-29 05:48:54,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:54,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:48:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:48:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:48:54,784 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:54,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:54,901 INFO L93 Difference]: Finished difference Result 292 states and 342 transitions. [2023-11-29 05:48:54,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:48:54,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2023-11-29 05:48:54,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:48:54,904 INFO L225 Difference]: With dead ends: 292 [2023-11-29 05:48:54,904 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 05:48:54,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 05:48:54,906 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 100 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:48:54,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 203 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:48:54,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 05:48:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 228. [2023-11-29 05:48:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 149 states have (on average 1.7919463087248322) internal successors, (267), 204 states have internal predecessors, (267), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 05:48:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 309 transitions. [2023-11-29 05:48:54,928 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 309 transitions. Word has length 27 [2023-11-29 05:48:54,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:48:54,929 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 309 transitions. [2023-11-29 05:48:54,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:54,929 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 309 transitions. [2023-11-29 05:48:54,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 05:48:54,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:48:54,930 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:54,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:48:55,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:55,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:48:55,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1641187275, now seen corresponding path program 1 times [2023-11-29 05:48:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:55,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741695485] [2023-11-29 05:48:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:55,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:55,147 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:48:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482500516] [2023-11-29 05:48:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:55,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:55,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:55,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:48:55,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:48:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:55,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:48:55,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:48:55,246 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:48:55,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:48:55,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:55,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741695485] [2023-11-29 05:48:55,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:48:55,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482500516] [2023-11-29 05:48:55,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482500516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:55,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:55,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:48:55,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182935392] [2023-11-29 05:48:55,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:55,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:48:55,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:55,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:48:55,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:48:55,249 INFO L87 Difference]: Start difference. First operand 228 states and 309 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:55,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:55,438 INFO L93 Difference]: Finished difference Result 284 states and 328 transitions. [2023-11-29 05:48:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:48:55,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 05:48:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:48:55,441 INFO L225 Difference]: With dead ends: 284 [2023-11-29 05:48:55,441 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 05:48:55,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 05:48:55,442 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:48:55,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 125 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:48:55,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 05:48:55,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 232. [2023-11-29 05:48:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 153 states have (on average 1.7450980392156863) internal successors, (267), 208 states have internal predecessors, (267), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 05:48:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 309 transitions. [2023-11-29 05:48:55,459 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 309 transitions. Word has length 29 [2023-11-29 05:48:55,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:48:55,460 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 309 transitions. [2023-11-29 05:48:55,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2023-11-29 05:48:55,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 05:48:55,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:48:55,461 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:48:55,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:48:55,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:55,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:48:55,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:55,662 INFO L85 PathProgramCache]: Analyzing trace with hash -662801968, now seen corresponding path program 1 times [2023-11-29 05:48:55,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:55,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867738678] [2023-11-29 05:48:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:55,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:48:55,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569921477] [2023-11-29 05:48:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:55,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:55,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:55,678 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:48:55,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:48:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:55,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:48:55,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:48:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:48:55,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:48:55,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867738678] [2023-11-29 05:48:55,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:48:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569921477] [2023-11-29 05:48:55,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569921477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:48:55,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:48:55,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:48:55,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341861928] [2023-11-29 05:48:55,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:55,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:48:55,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:48:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:48:55,769 INFO L87 Difference]: Start difference. First operand 232 states and 309 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:48:56,045 INFO L93 Difference]: Finished difference Result 277 states and 320 transitions. [2023-11-29 05:48:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:48:56,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2023-11-29 05:48:56,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:48:56,047 INFO L225 Difference]: With dead ends: 277 [2023-11-29 05:48:56,048 INFO L226 Difference]: Without dead ends: 272 [2023-11-29 05:48:56,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 05:48:56,049 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 171 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:48:56,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 173 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:48:56,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-29 05:48:56,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 193. [2023-11-29 05:48:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 119 states have (on average 1.73109243697479) internal successors, (206), 174 states have internal predecessors, (206), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 05:48:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 238 transitions. [2023-11-29 05:48:56,063 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 238 transitions. Word has length 30 [2023-11-29 05:48:56,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:48:56,063 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 238 transitions. [2023-11-29 05:48:56,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 05:48:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 238 transitions. [2023-11-29 05:48:56,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 05:48:56,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:48:56,065 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 05:48:56,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 05:48:56,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:56,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:48:56,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:48:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash 330085702, now seen corresponding path program 1 times [2023-11-29 05:48:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:48:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904256722] [2023-11-29 05:48:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:48:56,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:48:56,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447249902] [2023-11-29 05:48:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:48:56,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:48:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:48:56,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:48:56,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:48:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:48:56,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:48:56,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:48:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:48:56,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:48:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:48:56,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:48:56,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904256722] [2023-11-29 05:48:56,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:48:56,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447249902] [2023-11-29 05:48:56,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447249902] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:48:56,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:48:56,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 05:48:56,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709103835] [2023-11-29 05:48:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:48:56,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:48:56,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:48:56,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:48:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:48:56,675 INFO L87 Difference]: Start difference. First operand 193 states and 238 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:49:01,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 05:49:05,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 05:49:10,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 05:49:14,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 05:49:14,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:14,544 INFO L93 Difference]: Finished difference Result 218 states and 266 transitions. [2023-11-29 05:49:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:49:14,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2023-11-29 05:49:14,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:14,546 INFO L225 Difference]: With dead ends: 218 [2023-11-29 05:49:14,546 INFO L226 Difference]: Without dead ends: 216 [2023-11-29 05:49:14,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:14,548 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 236 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 14 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:14,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 171 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 169 Invalid, 6 Unknown, 0 Unchecked, 17.7s Time] [2023-11-29 05:49:14,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-29 05:49:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2023-11-29 05:49:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 135 states have (on average 1.674074074074074) internal successors, (226), 189 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:49:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 262 transitions. [2023-11-29 05:49:14,565 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 262 transitions. Word has length 36 [2023-11-29 05:49:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:14,565 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 262 transitions. [2023-11-29 05:49:14,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:49:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 262 transitions. [2023-11-29 05:49:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 05:49:14,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:14,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 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 05:49:14,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:49:14,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 05:49:14,771 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:14,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1642722234, now seen corresponding path program 1 times [2023-11-29 05:49:14,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:14,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117525752] [2023-11-29 05:49:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:14,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:14,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077045999] [2023-11-29 05:49:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:14,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:14,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:14,786 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:14,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:49:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:14,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:49:14,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:49:14,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:49:15,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117525752] [2023-11-29 05:49:15,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:15,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077045999] [2023-11-29 05:49:15,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077045999] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:15,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:15,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 05:49:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329818959] [2023-11-29 05:49:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:15,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:49:15,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:49:15,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:49:15,127 INFO L87 Difference]: Start difference. First operand 210 states and 262 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:49:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:17,485 INFO L93 Difference]: Finished difference Result 219 states and 266 transitions. [2023-11-29 05:49:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:49:17,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2023-11-29 05:49:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:17,487 INFO L225 Difference]: With dead ends: 219 [2023-11-29 05:49:17,487 INFO L226 Difference]: Without dead ends: 217 [2023-11-29 05:49:17,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:17,488 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 233 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:17,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 236 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 05:49:17,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-29 05:49:17,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2023-11-29 05:49:17,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 137 states have (on average 1.6496350364963503) internal successors, (226), 190 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:49:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2023-11-29 05:49:17,507 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 37 [2023-11-29 05:49:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:17,508 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2023-11-29 05:49:17,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:49:17,508 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2023-11-29 05:49:17,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 05:49:17,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:17,509 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 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 05:49:17,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:49:17,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:17,710 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:17,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash -615218232, now seen corresponding path program 1 times [2023-11-29 05:49:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096268947] [2023-11-29 05:49:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:17,722 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:17,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131870722] [2023-11-29 05:49:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:17,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:17,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:17,724 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:17,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:49:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:17,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:49:17,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:49:17,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:49:17,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:17,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096268947] [2023-11-29 05:49:17,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:17,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131870722] [2023-11-29 05:49:17,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131870722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:49:17,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:49:17,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:49:17,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738558550] [2023-11-29 05:49:17,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:17,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:17,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:17,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:49:17,967 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 05:49:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:18,853 INFO L93 Difference]: Finished difference Result 375 states and 458 transitions. [2023-11-29 05:49:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:18,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 38 [2023-11-29 05:49:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:18,856 INFO L225 Difference]: With dead ends: 375 [2023-11-29 05:49:18,856 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 05:49:18,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:18,857 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 518 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:18,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 218 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:49:18,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 05:49:18,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 212. [2023-11-29 05:49:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 139 states have (on average 1.6258992805755397) internal successors, (226), 191 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:49:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 262 transitions. [2023-11-29 05:49:18,879 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 262 transitions. Word has length 38 [2023-11-29 05:49:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:18,880 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 262 transitions. [2023-11-29 05:49:18,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 05:49:18,880 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 262 transitions. [2023-11-29 05:49:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 05:49:18,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:18,881 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 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 05:49:18,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:49:19,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:19,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:19,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:19,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1891895940, now seen corresponding path program 1 times [2023-11-29 05:49:19,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:19,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371401249] [2023-11-29 05:49:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:19,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:19,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:19,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704929269] [2023-11-29 05:49:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:19,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:19,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:19,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:19,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:49:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:19,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:49:19,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:49:19,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:49:19,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371401249] [2023-11-29 05:49:19,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704929269] [2023-11-29 05:49:19,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704929269] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:49:19,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:49:19,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:49:19,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329899031] [2023-11-29 05:49:19,377 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:19,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:19,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:19,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:49:19,378 INFO L87 Difference]: Start difference. First operand 212 states and 262 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 05:49:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:19,818 INFO L93 Difference]: Finished difference Result 373 states and 453 transitions. [2023-11-29 05:49:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:19,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 39 [2023-11-29 05:49:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:19,821 INFO L225 Difference]: With dead ends: 373 [2023-11-29 05:49:19,821 INFO L226 Difference]: Without dead ends: 371 [2023-11-29 05:49:19,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:19,823 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 306 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:19,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 385 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:49:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-29 05:49:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 213. [2023-11-29 05:49:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 141 states have (on average 1.6028368794326242) internal successors, (226), 192 states have internal predecessors, (226), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 05:49:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 262 transitions. [2023-11-29 05:49:19,846 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 262 transitions. Word has length 39 [2023-11-29 05:49:19,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:19,846 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 262 transitions. [2023-11-29 05:49:19,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 05:49:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 262 transitions. [2023-11-29 05:49:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 05:49:19,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:19,847 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 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 05:49:19,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:49:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:20,048 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:20,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1480768074, now seen corresponding path program 1 times [2023-11-29 05:49:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564684738] [2023-11-29 05:49:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:20,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:20,059 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:20,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116504945] [2023-11-29 05:49:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:20,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:20,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:20,061 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:20,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:49:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:20,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 05:49:20,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:49:20,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:20,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:20,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564684738] [2023-11-29 05:49:20,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:20,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116504945] [2023-11-29 05:49:20,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116504945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:20,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:20,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:49:20,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289017013] [2023-11-29 05:49:20,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:20,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:49:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:20,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:49:20,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:49:20,304 INFO L87 Difference]: Start difference. First operand 213 states and 262 transitions. Second operand has 8 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 05:49:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:21,272 INFO L93 Difference]: Finished difference Result 365 states and 446 transitions. [2023-11-29 05:49:21,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:21,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2023-11-29 05:49:21,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:21,275 INFO L225 Difference]: With dead ends: 365 [2023-11-29 05:49:21,275 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 05:49:21,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:49:21,276 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 408 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:21,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 164 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:49:21,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 05:49:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 275. [2023-11-29 05:49:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 196 states have (on average 1.6122448979591837) internal successors, (316), 247 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:49:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 366 transitions. [2023-11-29 05:49:21,305 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 366 transitions. Word has length 40 [2023-11-29 05:49:21,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:21,306 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 366 transitions. [2023-11-29 05:49:21,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 05:49:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 366 transitions. [2023-11-29 05:49:21,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 05:49:21,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:21,307 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 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 05:49:21,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:49:21,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:49:21,508 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:21,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1340829890, now seen corresponding path program 1 times [2023-11-29 05:49:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:21,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060968494] [2023-11-29 05:49:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:21,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:21,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527712901] [2023-11-29 05:49:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:21,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:21,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:21,518 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:21,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:49:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:21,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:49:21,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:49:21,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:21,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:21,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060968494] [2023-11-29 05:49:21,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:21,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527712901] [2023-11-29 05:49:21,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527712901] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:21,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:21,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:49:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823767826] [2023-11-29 05:49:21,871 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:21,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:49:21,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:49:21,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:49:21,872 INFO L87 Difference]: Start difference. First operand 275 states and 366 transitions. Second operand has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:49:23,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:23,020 INFO L93 Difference]: Finished difference Result 369 states and 450 transitions. [2023-11-29 05:49:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:23,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2023-11-29 05:49:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:23,023 INFO L225 Difference]: With dead ends: 369 [2023-11-29 05:49:23,023 INFO L226 Difference]: Without dead ends: 367 [2023-11-29 05:49:23,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:23,024 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 506 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:23,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 196 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:49:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-29 05:49:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 277. [2023-11-29 05:49:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 198 states have (on average 1.595959595959596) internal successors, (316), 249 states have internal predecessors, (316), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:49:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 366 transitions. [2023-11-29 05:49:23,042 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 366 transitions. Word has length 41 [2023-11-29 05:49:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:23,042 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 366 transitions. [2023-11-29 05:49:23,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 05:49:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 366 transitions. [2023-11-29 05:49:23,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 05:49:23,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:23,044 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:23,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:49:23,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 05:49:23,246 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:23,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 44615711, now seen corresponding path program 1 times [2023-11-29 05:49:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:23,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713540190] [2023-11-29 05:49:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:23,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:23,257 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:23,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339968844] [2023-11-29 05:49:23,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:23,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:23,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:23,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:23,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:49:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:23,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:49:23,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:23,397 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 05:49:23,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:23,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:23,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713540190] [2023-11-29 05:49:23,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:23,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339968844] [2023-11-29 05:49:23,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339968844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:23,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:23,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:49:23,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393243071] [2023-11-29 05:49:23,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:23,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:49:23,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:49:23,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:23,400 INFO L87 Difference]: Start difference. First operand 277 states and 366 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:49:23,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:23,625 INFO L93 Difference]: Finished difference Result 319 states and 385 transitions. [2023-11-29 05:49:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:49:23,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2023-11-29 05:49:23,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:23,628 INFO L225 Difference]: With dead ends: 319 [2023-11-29 05:49:23,628 INFO L226 Difference]: Without dead ends: 317 [2023-11-29 05:49:23,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:49:23,629 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 189 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:23,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 302 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:23,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-29 05:49:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 278. [2023-11-29 05:49:23,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 199 states have (on average 1.5829145728643217) internal successors, (315), 250 states have internal predecessors, (315), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 05:49:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 365 transitions. [2023-11-29 05:49:23,656 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 365 transitions. Word has length 49 [2023-11-29 05:49:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:23,656 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 365 transitions. [2023-11-29 05:49:23,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:49:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 365 transitions. [2023-11-29 05:49:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 05:49:23,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:23,657 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:23,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:49:23,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 05:49:23,858 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:23,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1383087122, now seen corresponding path program 1 times [2023-11-29 05:49:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:23,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632613240] [2023-11-29 05:49:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:23,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:23,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763466352] [2023-11-29 05:49:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:23,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:23,869 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:23,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:49:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:23,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:49:23,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:24,040 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 05:49:24,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 05:49:24,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:24,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632613240] [2023-11-29 05:49:24,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:24,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763466352] [2023-11-29 05:49:24,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763466352] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:49:24,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:49:24,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:49:24,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573580323] [2023-11-29 05:49:24,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:24,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:24,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:24,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:49:24,163 INFO L87 Difference]: Start difference. First operand 278 states and 365 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:49:24,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:24,540 INFO L93 Difference]: Finished difference Result 333 states and 396 transitions. [2023-11-29 05:49:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:24,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 50 [2023-11-29 05:49:24,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:24,543 INFO L225 Difference]: With dead ends: 333 [2023-11-29 05:49:24,543 INFO L226 Difference]: Without dead ends: 331 [2023-11-29 05:49:24,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:24,544 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 420 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:24,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 393 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:49:24,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-29 05:49:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 284. [2023-11-29 05:49:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 205 states have (on average 1.575609756097561) internal successors, (323), 255 states have internal predecessors, (323), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 375 transitions. [2023-11-29 05:49:24,571 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 375 transitions. Word has length 50 [2023-11-29 05:49:24,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:24,572 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 375 transitions. [2023-11-29 05:49:24,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:49:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 375 transitions. [2023-11-29 05:49:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 05:49:24,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:24,573 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:24,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 05:49:24,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 05:49:24,778 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:24,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash -73972095, now seen corresponding path program 1 times [2023-11-29 05:49:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:24,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128154251] [2023-11-29 05:49:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:24,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:24,789 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:24,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235935628] [2023-11-29 05:49:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:24,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:24,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:24,791 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:24,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:49:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:24,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:49:24,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 05:49:24,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128154251] [2023-11-29 05:49:24,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235935628] [2023-11-29 05:49:24,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235935628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:24,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:24,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:49:24,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804655936] [2023-11-29 05:49:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:24,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:49:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:24,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:49:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:24,968 INFO L87 Difference]: Start difference. First operand 284 states and 375 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:49:25,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:25,646 INFO L93 Difference]: Finished difference Result 315 states and 383 transitions. [2023-11-29 05:49:25,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:49:25,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2023-11-29 05:49:25,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:25,648 INFO L225 Difference]: With dead ends: 315 [2023-11-29 05:49:25,648 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 05:49:25,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:49:25,649 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 178 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:25,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 248 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:49:25,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 05:49:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2023-11-29 05:49:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 207 states have (on average 1.5603864734299517) internal successors, (323), 257 states have internal predecessors, (323), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:25,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 375 transitions. [2023-11-29 05:49:25,676 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 375 transitions. Word has length 51 [2023-11-29 05:49:25,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:25,677 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 375 transitions. [2023-11-29 05:49:25,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:49:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 375 transitions. [2023-11-29 05:49:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 05:49:25,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:25,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:25,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:49:25,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 05:49:25,879 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:25,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:25,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2001832436, now seen corresponding path program 1 times [2023-11-29 05:49:25,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:25,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373793149] [2023-11-29 05:49:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:25,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:25,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:25,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457698708] [2023-11-29 05:49:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:25,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:25,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:25,890 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:25,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:49:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:25,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:49:25,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 05:49:26,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:26,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373793149] [2023-11-29 05:49:26,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457698708] [2023-11-29 05:49:26,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457698708] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:26,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:26,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:49:26,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089252900] [2023-11-29 05:49:26,238 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:26,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:49:26,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:49:26,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:49:26,239 INFO L87 Difference]: Start difference. First operand 286 states and 375 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:49:28,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:28,038 INFO L93 Difference]: Finished difference Result 313 states and 380 transitions. [2023-11-29 05:49:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 52 [2023-11-29 05:49:28,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:28,040 INFO L225 Difference]: With dead ends: 313 [2023-11-29 05:49:28,040 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 05:49:28,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:28,041 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 252 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:28,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 305 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 05:49:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 05:49:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 287. [2023-11-29 05:49:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 208 states have (on average 1.5480769230769231) internal successors, (322), 258 states have internal predecessors, (322), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 374 transitions. [2023-11-29 05:49:28,067 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 374 transitions. Word has length 52 [2023-11-29 05:49:28,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:28,068 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 374 transitions. [2023-11-29 05:49:28,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 05:49:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 374 transitions. [2023-11-29 05:49:28,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:49:28,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:28,069 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:28,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 05:49:28,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 05:49:28,269 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:28,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1959843167, now seen corresponding path program 1 times [2023-11-29 05:49:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:28,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853259514] [2023-11-29 05:49:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:28,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:28,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:28,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862993059] [2023-11-29 05:49:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:28,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:28,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:28,279 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:28,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:49:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:28,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:49:28,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:28,331 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:28,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:28,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:28,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853259514] [2023-11-29 05:49:28,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:28,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862993059] [2023-11-29 05:49:28,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862993059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:28,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:28,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:49:28,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190372132] [2023-11-29 05:49:28,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:28,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:49:28,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:28,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:49:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:49:28,332 INFO L87 Difference]: Start difference. First operand 287 states and 374 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 05:49:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:28,382 INFO L93 Difference]: Finished difference Result 287 states and 374 transitions. [2023-11-29 05:49:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:28,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-11-29 05:49:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:28,386 INFO L225 Difference]: With dead ends: 287 [2023-11-29 05:49:28,386 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 05:49:28,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 05:49:28,387 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 47 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:28,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 201 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:49:28,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 05:49:28,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-11-29 05:49:28,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 208 states have (on average 1.5192307692307692) internal successors, (316), 256 states have internal predecessors, (316), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 368 transitions. [2023-11-29 05:49:28,404 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 368 transitions. Word has length 59 [2023-11-29 05:49:28,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:28,405 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 368 transitions. [2023-11-29 05:49:28,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 05:49:28,405 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 368 transitions. [2023-11-29 05:49:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 05:49:28,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:28,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:28,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 05:49:28,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:49:28,606 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:28,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:28,607 INFO L85 PathProgramCache]: Analyzing trace with hash -625595905, now seen corresponding path program 1 times [2023-11-29 05:49:28,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:28,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565290027] [2023-11-29 05:49:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:28,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:28,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:28,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1616962639] [2023-11-29 05:49:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:28,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:28,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:28,614 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:28,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:49:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:28,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:49:28,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:28,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:28,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:28,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565290027] [2023-11-29 05:49:28,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:28,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616962639] [2023-11-29 05:49:28,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616962639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:28,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:28,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:49:28,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547204523] [2023-11-29 05:49:28,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:28,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:49:28,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:28,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:49:28,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:49:28,664 INFO L87 Difference]: Start difference. First operand 285 states and 368 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 05:49:28,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:28,707 INFO L93 Difference]: Finished difference Result 285 states and 368 transitions. [2023-11-29 05:49:28,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:28,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-11-29 05:49:28,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:28,709 INFO L225 Difference]: With dead ends: 285 [2023-11-29 05:49:28,709 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 05:49:28,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 05:49:28,710 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 45 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:28,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 200 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:49:28,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 05:49:28,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-29 05:49:28,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 208 states have (on average 1.4807692307692308) internal successors, (308), 254 states have internal predecessors, (308), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:28,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2023-11-29 05:49:28,727 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 60 [2023-11-29 05:49:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:28,728 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2023-11-29 05:49:28,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 05:49:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2023-11-29 05:49:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:49:28,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:28,729 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:28,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 05:49:28,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 05:49:28,929 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:28,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:28,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2081391361, now seen corresponding path program 1 times [2023-11-29 05:49:28,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:28,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477614705] [2023-11-29 05:49:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:28,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:28,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:28,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172625934] [2023-11-29 05:49:28,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:28,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:28,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:28,937 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:28,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:49:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:28,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:49:28,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:29,072 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:29,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:29,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:29,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477614705] [2023-11-29 05:49:29,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:29,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172625934] [2023-11-29 05:49:29,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172625934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:29,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:29,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:49:29,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198938740] [2023-11-29 05:49:29,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:29,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:49:29,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:29,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:49:29,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:49:29,074 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:49:29,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:29,289 INFO L93 Difference]: Finished difference Result 311 states and 388 transitions. [2023-11-29 05:49:29,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:49:29,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-29 05:49:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:29,292 INFO L225 Difference]: With dead ends: 311 [2023-11-29 05:49:29,292 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 05:49:29,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:29,293 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 363 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:29,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 161 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:29,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 05:49:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 285. [2023-11-29 05:49:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.4761904761904763) internal successors, (310), 256 states have internal predecessors, (310), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 362 transitions. [2023-11-29 05:49:29,321 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 362 transitions. Word has length 61 [2023-11-29 05:49:29,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:29,322 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 362 transitions. [2023-11-29 05:49:29,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:49:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 362 transitions. [2023-11-29 05:49:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:49:29,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:29,323 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:29,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 05:49:29,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 05:49:29,524 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:29,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:29,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2081405263, now seen corresponding path program 1 times [2023-11-29 05:49:29,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:29,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000855683] [2023-11-29 05:49:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:29,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:29,533 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230899442] [2023-11-29 05:49:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:29,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:29,535 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:29,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 05:49:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:29,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:49:29,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:29,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:29,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:29,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000855683] [2023-11-29 05:49:29,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:29,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230899442] [2023-11-29 05:49:29,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230899442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:29,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:29,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:49:29,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811506654] [2023-11-29 05:49:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:29,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:49:29,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:49:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:49:29,717 INFO L87 Difference]: Start difference. First operand 285 states and 362 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:49:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:29,919 INFO L93 Difference]: Finished difference Result 310 states and 387 transitions. [2023-11-29 05:49:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:49:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 61 [2023-11-29 05:49:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:29,922 INFO L225 Difference]: With dead ends: 310 [2023-11-29 05:49:29,922 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 05:49:29,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:29,923 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 196 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:29,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 178 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 05:49:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 285. [2023-11-29 05:49:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.4714285714285715) internal successors, (309), 256 states have internal predecessors, (309), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2023-11-29 05:49:29,952 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 361 transitions. Word has length 61 [2023-11-29 05:49:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:29,952 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 361 transitions. [2023-11-29 05:49:29,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 05:49:29,952 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 361 transitions. [2023-11-29 05:49:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 05:49:29,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:29,953 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:29,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 05:49:30,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:30,154 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:30,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:30,154 INFO L85 PathProgramCache]: Analyzing trace with hash 99053827, now seen corresponding path program 1 times [2023-11-29 05:49:30,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:30,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465142783] [2023-11-29 05:49:30,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:30,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:30,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:30,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071554320] [2023-11-29 05:49:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:30,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:30,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:30,162 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:30,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 05:49:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:30,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:49:30,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:30,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:30,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:30,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465142783] [2023-11-29 05:49:30,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071554320] [2023-11-29 05:49:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071554320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:30,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:49:30,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181998490] [2023-11-29 05:49:30,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:30,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:49:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:30,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:49:30,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:49:30,297 INFO L87 Difference]: Start difference. First operand 285 states and 361 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:30,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:30,706 INFO L93 Difference]: Finished difference Result 305 states and 364 transitions. [2023-11-29 05:49:30,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:30,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2023-11-29 05:49:30,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:30,708 INFO L225 Difference]: With dead ends: 305 [2023-11-29 05:49:30,708 INFO L226 Difference]: Without dead ends: 303 [2023-11-29 05:49:30,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 05:49:30,709 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 49 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:30,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 151 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:49:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-29 05:49:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 285. [2023-11-29 05:49:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 210 states have (on average 1.457142857142857) internal successors, (306), 256 states have internal predecessors, (306), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 358 transitions. [2023-11-29 05:49:30,730 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 358 transitions. Word has length 62 [2023-11-29 05:49:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:30,731 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 358 transitions. [2023-11-29 05:49:30,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 358 transitions. [2023-11-29 05:49:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 05:49:30,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:30,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:30,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 05:49:30,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:30,932 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:30,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash 287282565, now seen corresponding path program 1 times [2023-11-29 05:49:30,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:30,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472712324] [2023-11-29 05:49:30,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:30,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:30,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:30,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839030858] [2023-11-29 05:49:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:30,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:30,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:30,941 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:30,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 05:49:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:30,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:49:30,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:31,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:31,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:31,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472712324] [2023-11-29 05:49:31,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:31,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839030858] [2023-11-29 05:49:31,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839030858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:31,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:31,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:49:31,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504876677] [2023-11-29 05:49:31,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:31,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:49:31,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:31,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:49:31,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:49:31,070 INFO L87 Difference]: Start difference. First operand 285 states and 358 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:31,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:31,291 INFO L93 Difference]: Finished difference Result 372 states and 435 transitions. [2023-11-29 05:49:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:31,292 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), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2023-11-29 05:49:31,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:31,294 INFO L225 Difference]: With dead ends: 372 [2023-11-29 05:49:31,294 INFO L226 Difference]: Without dead ends: 370 [2023-11-29 05:49:31,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 05:49:31,295 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 70 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:31,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 135 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-29 05:49:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 293. [2023-11-29 05:49:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 218 states have (on average 1.4495412844036697) internal successors, (316), 264 states have internal predecessors, (316), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2023-11-29 05:49:31,322 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 64 [2023-11-29 05:49:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:31,323 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2023-11-29 05:49:31,323 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), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2023-11-29 05:49:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 05:49:31,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:31,324 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:31,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 05:49:31,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 05:49:31,525 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:31,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:31,525 INFO L85 PathProgramCache]: Analyzing trace with hash 701450949, now seen corresponding path program 1 times [2023-11-29 05:49:31,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:31,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450150894] [2023-11-29 05:49:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:31,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:31,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548305915] [2023-11-29 05:49:31,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:31,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:31,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:31,533 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:31,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 05:49:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:31,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:49:31,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:31,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:31,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:31,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450150894] [2023-11-29 05:49:31,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:31,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548305915] [2023-11-29 05:49:31,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548305915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:31,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:31,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:49:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503908094] [2023-11-29 05:49:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:31,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:49:31,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:31,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:49:31,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:49:31,655 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:31,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:31,857 INFO L93 Difference]: Finished difference Result 293 states and 368 transitions. [2023-11-29 05:49:31,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:31,858 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), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2023-11-29 05:49:31,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:31,860 INFO L225 Difference]: With dead ends: 293 [2023-11-29 05:49:31,860 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 05:49:31,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 05:49:31,861 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 78 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:31,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 84 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 05:49:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-11-29 05:49:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 218 states have (on average 1.4311926605504588) internal successors, (312), 262 states have internal predecessors, (312), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:49:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 364 transitions. [2023-11-29 05:49:31,881 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 364 transitions. Word has length 64 [2023-11-29 05:49:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:31,881 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 364 transitions. [2023-11-29 05:49:31,881 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), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 364 transitions. [2023-11-29 05:49:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 05:49:31,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:31,882 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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 05:49:31,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 05:49:32,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:32,082 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:32,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:32,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1909443445, now seen corresponding path program 1 times [2023-11-29 05:49:32,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:32,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089629354] [2023-11-29 05:49:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:32,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:32,090 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:32,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656551144] [2023-11-29 05:49:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:32,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:32,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:32,091 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:32,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:49:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:32,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:49:32,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:32,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:32,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:32,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089629354] [2023-11-29 05:49:32,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:32,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656551144] [2023-11-29 05:49:32,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656551144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:32,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:32,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 05:49:32,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893227455] [2023-11-29 05:49:32,351 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:32,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:49:32,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:32,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:49:32,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:32,352 INFO L87 Difference]: Start difference. First operand 291 states and 364 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:32,632 INFO L93 Difference]: Finished difference Result 364 states and 424 transitions. [2023-11-29 05:49:32,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:32,632 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), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2023-11-29 05:49:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:32,634 INFO L225 Difference]: With dead ends: 364 [2023-11-29 05:49:32,634 INFO L226 Difference]: Without dead ends: 362 [2023-11-29 05:49:32,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:32,635 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:32,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 175 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:49:32,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-11-29 05:49:32,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 297. [2023-11-29 05:49:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 223 states have (on average 1.4349775784753362) internal successors, (320), 267 states have internal predecessors, (320), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 374 transitions. [2023-11-29 05:49:32,667 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 374 transitions. Word has length 67 [2023-11-29 05:49:32,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:32,667 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 374 transitions. [2023-11-29 05:49:32,667 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), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:32,668 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 374 transitions. [2023-11-29 05:49:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 05:49:32,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:32,668 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:32,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 05:49:32,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:32,869 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:32,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash -936795298, now seen corresponding path program 1 times [2023-11-29 05:49:32,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:32,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643930762] [2023-11-29 05:49:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:32,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:32,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:32,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320776385] [2023-11-29 05:49:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:32,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:32,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:32,880 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:32,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 05:49:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:32,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:49:32,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:33,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:33,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:33,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643930762] [2023-11-29 05:49:33,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:33,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320776385] [2023-11-29 05:49:33,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320776385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:33,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:33,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 05:49:33,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525210462] [2023-11-29 05:49:33,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:33,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:49:33,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:33,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:49:33,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:33,145 INFO L87 Difference]: Start difference. First operand 297 states and 374 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:33,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:33,336 INFO L93 Difference]: Finished difference Result 362 states and 422 transitions. [2023-11-29 05:49:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:33,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2023-11-29 05:49:33,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:33,338 INFO L225 Difference]: With dead ends: 362 [2023-11-29 05:49:33,338 INFO L226 Difference]: Without dead ends: 360 [2023-11-29 05:49:33,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:49:33,339 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:33,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 175 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-29 05:49:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 298. [2023-11-29 05:49:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.4285714285714286) internal successors, (320), 268 states have internal predecessors, (320), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 374 transitions. [2023-11-29 05:49:33,361 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 374 transitions. Word has length 68 [2023-11-29 05:49:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:33,362 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 374 transitions. [2023-11-29 05:49:33,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 374 transitions. [2023-11-29 05:49:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 05:49:33,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:33,363 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:33,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 05:49:33,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:33,563 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:33,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1024116887, now seen corresponding path program 1 times [2023-11-29 05:49:33,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:33,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760161633] [2023-11-29 05:49:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:33,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:33,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177997054] [2023-11-29 05:49:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:33,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:33,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:33,572 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:33,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 05:49:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:33,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:49:33,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:49:33,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:33,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:33,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760161633] [2023-11-29 05:49:33,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:33,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177997054] [2023-11-29 05:49:33,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177997054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:33,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:33,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:49:33,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476142642] [2023-11-29 05:49:33,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:33,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:49:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:33,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:49:33,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:49:33,645 INFO L87 Difference]: Start difference. First operand 298 states and 374 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:33,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:33,972 INFO L93 Difference]: Finished difference Result 362 states and 422 transitions. [2023-11-29 05:49:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:49:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2023-11-29 05:49:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:33,975 INFO L225 Difference]: With dead ends: 362 [2023-11-29 05:49:33,975 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 05:49:33,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 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 05:49:33,976 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 59 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:33,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 189 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:49:33,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 05:49:34,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 298. [2023-11-29 05:49:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.4107142857142858) internal successors, (316), 268 states have internal predecessors, (316), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 370 transitions. [2023-11-29 05:49:34,006 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 370 transitions. Word has length 69 [2023-11-29 05:49:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:34,007 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 370 transitions. [2023-11-29 05:49:34,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 370 transitions. [2023-11-29 05:49:34,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 05:49:34,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:34,008 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:34,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 05:49:34,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:49:34,208 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:34,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:34,209 INFO L85 PathProgramCache]: Analyzing trace with hash 169429588, now seen corresponding path program 1 times [2023-11-29 05:49:34,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:34,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358961840] [2023-11-29 05:49:34,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:34,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:34,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:34,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525984899] [2023-11-29 05:49:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:34,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:34,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:34,217 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:34,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 05:49:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:34,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:49:34,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:49:34,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:49:34,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358961840] [2023-11-29 05:49:34,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:34,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525984899] [2023-11-29 05:49:34,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525984899] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:49:34,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:49:34,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:49:34,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155890256] [2023-11-29 05:49:34,423 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:34,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:34,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:49:34,425 INFO L87 Difference]: Start difference. First operand 298 states and 370 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:49:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:34,929 INFO L93 Difference]: Finished difference Result 308 states and 372 transitions. [2023-11-29 05:49:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:34,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 72 [2023-11-29 05:49:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:34,932 INFO L225 Difference]: With dead ends: 308 [2023-11-29 05:49:34,932 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 05:49:34,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:34,933 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 257 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:34,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 156 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:49:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 05:49:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 297. [2023-11-29 05:49:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 224 states have (on average 1.3973214285714286) internal successors, (313), 267 states have internal predecessors, (313), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 367 transitions. [2023-11-29 05:49:34,966 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 367 transitions. Word has length 72 [2023-11-29 05:49:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:34,967 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 367 transitions. [2023-11-29 05:49:34,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:49:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 367 transitions. [2023-11-29 05:49:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 05:49:34,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:34,968 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:34,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 05:49:35,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:35,168 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:35,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:35,169 INFO L85 PathProgramCache]: Analyzing trace with hash 628819385, now seen corresponding path program 1 times [2023-11-29 05:49:35,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:35,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790676489] [2023-11-29 05:49:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:35,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:35,176 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:35,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879214146] [2023-11-29 05:49:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:35,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:35,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:35,177 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:35,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 05:49:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:35,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:49:35,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 05:49:35,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:35,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790676489] [2023-11-29 05:49:35,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879214146] [2023-11-29 05:49:35,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879214146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:35,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:35,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:49:35,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385398544] [2023-11-29 05:49:35,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:35,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:49:35,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:35,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:49:35,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:49:35,261 INFO L87 Difference]: Start difference. First operand 297 states and 367 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:35,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:35,558 INFO L93 Difference]: Finished difference Result 356 states and 414 transitions. [2023-11-29 05:49:35,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:49:35,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2023-11-29 05:49:35,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:35,560 INFO L225 Difference]: With dead ends: 356 [2023-11-29 05:49:35,560 INFO L226 Difference]: Without dead ends: 355 [2023-11-29 05:49:35,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 05:49:35,561 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 134 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:35,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 158 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:49:35,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-29 05:49:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 297. [2023-11-29 05:49:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 224 states have (on average 1.3928571428571428) internal successors, (312), 267 states have internal predecessors, (312), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 366 transitions. [2023-11-29 05:49:35,583 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 366 transitions. Word has length 71 [2023-11-29 05:49:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:35,584 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 366 transitions. [2023-11-29 05:49:35,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 366 transitions. [2023-11-29 05:49:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 05:49:35,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:35,585 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:35,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 05:49:35,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:35,785 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:35,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:35,785 INFO L85 PathProgramCache]: Analyzing trace with hash 957350077, now seen corresponding path program 1 times [2023-11-29 05:49:35,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:35,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938867327] [2023-11-29 05:49:35,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:35,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:35,798 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:35,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228998704] [2023-11-29 05:49:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:35,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:35,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:35,799 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:35,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 05:49:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:35,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:49:35,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:49:36,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:36,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:36,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938867327] [2023-11-29 05:49:36,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:36,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228998704] [2023-11-29 05:49:36,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228998704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:36,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:36,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:49:36,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596098013] [2023-11-29 05:49:36,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:36,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:49:36,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:49:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:49:36,912 INFO L87 Difference]: Start difference. First operand 297 states and 366 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:49:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:37,991 INFO L93 Difference]: Finished difference Result 313 states and 369 transitions. [2023-11-29 05:49:37,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:49:37,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2023-11-29 05:49:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:37,993 INFO L225 Difference]: With dead ends: 313 [2023-11-29 05:49:37,993 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 05:49:37,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:49:37,994 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 211 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:37,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 250 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:49:37,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 05:49:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2023-11-29 05:49:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 223 states have (on average 1.3856502242152466) internal successors, (309), 266 states have internal predecessors, (309), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 363 transitions. [2023-11-29 05:49:38,025 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 363 transitions. Word has length 73 [2023-11-29 05:49:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:38,025 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 363 transitions. [2023-11-29 05:49:38,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:49:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 363 transitions. [2023-11-29 05:49:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 05:49:38,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:38,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:38,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 05:49:38,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:38,227 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:38,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:38,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1981435486, now seen corresponding path program 1 times [2023-11-29 05:49:38,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:38,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34592371] [2023-11-29 05:49:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:38,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:38,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:38,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086346941] [2023-11-29 05:49:38,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:38,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:38,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:38,236 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:38,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 05:49:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:38,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:49:38,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:49:38,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:38,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:38,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34592371] [2023-11-29 05:49:38,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:38,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086346941] [2023-11-29 05:49:38,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086346941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:38,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:38,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:49:38,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158914889] [2023-11-29 05:49:38,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:38,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:49:38,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:49:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:49:38,333 INFO L87 Difference]: Start difference. First operand 296 states and 363 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:38,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:38,777 INFO L93 Difference]: Finished difference Result 355 states and 410 transitions. [2023-11-29 05:49:38,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:49:38,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2023-11-29 05:49:38,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:38,779 INFO L225 Difference]: With dead ends: 355 [2023-11-29 05:49:38,779 INFO L226 Difference]: Without dead ends: 352 [2023-11-29 05:49:38,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 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 05:49:38,780 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 76 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:38,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 209 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:49:38,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-29 05:49:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 299. [2023-11-29 05:49:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 226 states have (on average 1.3805309734513274) internal successors, (312), 269 states have internal predecessors, (312), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-29 05:49:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 366 transitions. [2023-11-29 05:49:38,802 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 366 transitions. Word has length 72 [2023-11-29 05:49:38,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:38,802 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 366 transitions. [2023-11-29 05:49:38,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:49:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 366 transitions. [2023-11-29 05:49:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 05:49:38,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:38,803 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2023-11-29 05:49:38,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 05:49:39,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 05:49:39,003 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:39,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:39,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1002095526, now seen corresponding path program 1 times [2023-11-29 05:49:39,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:39,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771064065] [2023-11-29 05:49:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:39,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:39,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:39,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62343949] [2023-11-29 05:49:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:39,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:39,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:39,012 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:39,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 05:49:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:39,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:49:39,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:39,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:39,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:39,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771064065] [2023-11-29 05:49:39,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:39,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62343949] [2023-11-29 05:49:39,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62343949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:39,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:39,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:49:39,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799046424] [2023-11-29 05:49:39,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:39,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:39,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:39,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:39,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:49:39,512 INFO L87 Difference]: Start difference. First operand 299 states and 366 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:40,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:40,786 INFO L93 Difference]: Finished difference Result 493 states and 582 transitions. [2023-11-29 05:49:40,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:49:40,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2023-11-29 05:49:40,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:40,789 INFO L225 Difference]: With dead ends: 493 [2023-11-29 05:49:40,789 INFO L226 Difference]: Without dead ends: 492 [2023-11-29 05:49:40,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:49:40,790 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 318 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:40,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 421 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 05:49:40,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-29 05:49:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 309. [2023-11-29 05:49:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 235 states have (on average 1.3659574468085107) internal successors, (321), 278 states have internal predecessors, (321), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 05:49:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 377 transitions. [2023-11-29 05:49:40,827 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 377 transitions. Word has length 78 [2023-11-29 05:49:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 377 transitions. [2023-11-29 05:49:40,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 377 transitions. [2023-11-29 05:49:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 05:49:40,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:40,829 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:40,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 05:49:41,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:41,029 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:41,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1000190298, now seen corresponding path program 1 times [2023-11-29 05:49:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913580839] [2023-11-29 05:49:41,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:41,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:41,038 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:41,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783830031] [2023-11-29 05:49:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:41,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:41,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:41,040 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:41,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 05:49:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:41,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:49:41,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:41,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:41,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:41,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913580839] [2023-11-29 05:49:41,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:41,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783830031] [2023-11-29 05:49:41,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783830031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:41,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:41,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:49:41,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704417141] [2023-11-29 05:49:41,658 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:41,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:41,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:41,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:41,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:49:41,659 INFO L87 Difference]: Start difference. First operand 309 states and 377 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:42,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:42,827 INFO L93 Difference]: Finished difference Result 473 states and 552 transitions. [2023-11-29 05:49:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:49:42,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2023-11-29 05:49:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:42,830 INFO L225 Difference]: With dead ends: 473 [2023-11-29 05:49:42,830 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 05:49:42,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:49:42,831 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 707 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:42,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 311 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:49:42,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 05:49:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 388. [2023-11-29 05:49:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 306 states have (on average 1.434640522875817) internal successors, (439), 349 states have internal predecessors, (439), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 05:49:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 511 transitions. [2023-11-29 05:49:42,861 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 511 transitions. Word has length 79 [2023-11-29 05:49:42,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:42,861 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 511 transitions. [2023-11-29 05:49:42,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:42,861 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 511 transitions. [2023-11-29 05:49:42,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 05:49:42,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:42,862 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:42,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 05:49:43,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 05:49:43,063 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:43,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:43,063 INFO L85 PathProgramCache]: Analyzing trace with hash 941128232, now seen corresponding path program 1 times [2023-11-29 05:49:43,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:43,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255868278] [2023-11-29 05:49:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:43,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:43,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171007037] [2023-11-29 05:49:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:43,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:43,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:43,070 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:43,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 05:49:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:43,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:49:43,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:43,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:43,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255868278] [2023-11-29 05:49:43,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171007037] [2023-11-29 05:49:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171007037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:43,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:49:43,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252255216] [2023-11-29 05:49:43,666 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:43,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:43,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:43,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:43,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:49:43,667 INFO L87 Difference]: Start difference. First operand 388 states and 511 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:44,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:44,742 INFO L93 Difference]: Finished difference Result 468 states and 546 transitions. [2023-11-29 05:49:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:49:44,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 80 [2023-11-29 05:49:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:44,745 INFO L225 Difference]: With dead ends: 468 [2023-11-29 05:49:44,745 INFO L226 Difference]: Without dead ends: 463 [2023-11-29 05:49:44,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:49:44,746 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 381 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:44,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 256 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:49:44,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-29 05:49:44,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 387. [2023-11-29 05:49:44,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.4131147540983606) internal successors, (431), 348 states have internal predecessors, (431), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 05:49:44,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 503 transitions. [2023-11-29 05:49:44,777 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 503 transitions. Word has length 80 [2023-11-29 05:49:44,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:44,778 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 503 transitions. [2023-11-29 05:49:44,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:44,778 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 503 transitions. [2023-11-29 05:49:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 05:49:44,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:44,778 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:44,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 05:49:44,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:44,979 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:44,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash -889795812, now seen corresponding path program 1 times [2023-11-29 05:49:44,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:44,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533219833] [2023-11-29 05:49:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:44,986 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:44,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [837171920] [2023-11-29 05:49:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:44,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:44,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:44,988 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:44,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 05:49:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:45,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:49:45,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:49:45,389 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:45,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:45,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533219833] [2023-11-29 05:49:45,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:45,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837171920] [2023-11-29 05:49:45,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837171920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:45,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:45,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:49:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859095732] [2023-11-29 05:49:45,508 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:45,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:45,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:45,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:45,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:49:45,509 INFO L87 Difference]: Start difference. First operand 387 states and 503 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:46,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:46,673 INFO L93 Difference]: Finished difference Result 518 states and 634 transitions. [2023-11-29 05:49:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:49:46,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 81 [2023-11-29 05:49:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:46,676 INFO L225 Difference]: With dead ends: 518 [2023-11-29 05:49:46,676 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 05:49:46,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:49:46,677 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 400 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:46,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 329 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:49:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 05:49:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 387. [2023-11-29 05:49:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 305 states have (on average 1.4098360655737705) internal successors, (430), 348 states have internal predecessors, (430), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 05:49:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 502 transitions. [2023-11-29 05:49:46,708 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 502 transitions. Word has length 81 [2023-11-29 05:49:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:46,709 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 502 transitions. [2023-11-29 05:49:46,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 05:49:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 502 transitions. [2023-11-29 05:49:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 05:49:46,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:46,709 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:46,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 05:49:46,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:46,910 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:46,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:46,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1813866326, now seen corresponding path program 1 times [2023-11-29 05:49:46,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:46,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736279486] [2023-11-29 05:49:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:46,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:46,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372597330] [2023-11-29 05:49:46,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:46,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:46,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:46,917 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:46,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 05:49:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:46,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:49:46,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:47,276 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:49:47,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:47,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736279486] [2023-11-29 05:49:47,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:47,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372597330] [2023-11-29 05:49:47,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372597330] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:47,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:47,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:49:47,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862741507] [2023-11-29 05:49:47,440 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:47,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:49:47,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:47,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:49:47,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:49:47,441 INFO L87 Difference]: Start difference. First operand 387 states and 502 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:49:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:49,256 INFO L93 Difference]: Finished difference Result 464 states and 537 transitions. [2023-11-29 05:49:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:49:49,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 82 [2023-11-29 05:49:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:49,259 INFO L225 Difference]: With dead ends: 464 [2023-11-29 05:49:49,259 INFO L226 Difference]: Without dead ends: 462 [2023-11-29 05:49:49,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:49:49,260 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 568 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:49,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 294 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 05:49:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-29 05:49:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 379. [2023-11-29 05:49:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 298 states have (on average 1.4026845637583893) internal successors, (418), 341 states have internal predecessors, (418), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 05:49:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 488 transitions. [2023-11-29 05:49:49,290 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 488 transitions. Word has length 82 [2023-11-29 05:49:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:49,291 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 488 transitions. [2023-11-29 05:49:49,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:49:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 488 transitions. [2023-11-29 05:49:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 05:49:49,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:49,291 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:49,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 05:49:49,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 05:49:49,492 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:49,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:49,492 INFO L85 PathProgramCache]: Analyzing trace with hash -395281186, now seen corresponding path program 1 times [2023-11-29 05:49:49,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:49,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166548685] [2023-11-29 05:49:49,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:49,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:49,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:49,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413197311] [2023-11-29 05:49:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:49,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:49,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:49,499 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:49,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 05:49:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:49,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:49:49,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:49,760 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 05:49:49,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:50,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:50,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166548685] [2023-11-29 05:49:50,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:50,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413197311] [2023-11-29 05:49:50,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413197311] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:50,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:50,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:49:50,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569374918] [2023-11-29 05:49:50,575 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:50,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:49:50,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:50,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:49:50,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:49:50,576 INFO L87 Difference]: Start difference. First operand 379 states and 488 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:49:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:51,722 INFO L93 Difference]: Finished difference Result 443 states and 537 transitions. [2023-11-29 05:49:51,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:49:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2023-11-29 05:49:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:51,724 INFO L225 Difference]: With dead ends: 443 [2023-11-29 05:49:51,724 INFO L226 Difference]: Without dead ends: 438 [2023-11-29 05:49:51,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:49:51,725 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 315 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:51,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 324 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:49:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-29 05:49:51,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 373. [2023-11-29 05:49:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 297 states have (on average 1.3636363636363635) internal successors, (405), 335 states have internal predecessors, (405), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 05:49:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 475 transitions. [2023-11-29 05:49:51,755 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 475 transitions. Word has length 83 [2023-11-29 05:49:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:51,756 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 475 transitions. [2023-11-29 05:49:51,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:49:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 475 transitions. [2023-11-29 05:49:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 05:49:51,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:51,756 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:51,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 05:49:51,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 05:49:51,957 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:51,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash -979740629, now seen corresponding path program 1 times [2023-11-29 05:49:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876187904] [2023-11-29 05:49:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:51,964 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:51,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621762903] [2023-11-29 05:49:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:51,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:51,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:51,965 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:51,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 05:49:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:52,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:49:52,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:49:52,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:52,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:52,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876187904] [2023-11-29 05:49:52,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:52,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621762903] [2023-11-29 05:49:52,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621762903] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:52,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:52,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:49:52,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399324814] [2023-11-29 05:49:52,632 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:52,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:49:52,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:52,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:49:52,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:49:52,633 INFO L87 Difference]: Start difference. First operand 373 states and 475 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 05:49:55,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:57,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:49:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:58,001 INFO L93 Difference]: Finished difference Result 586 states and 706 transitions. [2023-11-29 05:49:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:49:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 89 [2023-11-29 05:49:58,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:58,004 INFO L225 Difference]: With dead ends: 586 [2023-11-29 05:49:58,004 INFO L226 Difference]: Without dead ends: 582 [2023-11-29 05:49:58,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:49:58,005 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 670 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:58,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 428 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 05:49:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-11-29 05:49:58,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 478. [2023-11-29 05:49:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 391 states have (on average 1.3785166240409208) internal successors, (539), 429 states have internal predecessors, (539), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 05:49:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 631 transitions. [2023-11-29 05:49:58,052 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 631 transitions. Word has length 89 [2023-11-29 05:49:58,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:58,052 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 631 transitions. [2023-11-29 05:49:58,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 05:49:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 631 transitions. [2023-11-29 05:49:58,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 05:49:58,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:58,053 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:58,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 05:49:58,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 05:49:58,253 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:58,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:58,254 INFO L85 PathProgramCache]: Analyzing trace with hash -307188350, now seen corresponding path program 1 times [2023-11-29 05:49:58,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:58,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375438084] [2023-11-29 05:49:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:58,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:58,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650727786] [2023-11-29 05:49:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:58,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:58,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:58,267 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:58,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 05:49:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:58,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:49:58,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:49:58,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:58,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:58,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375438084] [2023-11-29 05:49:58,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:58,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650727786] [2023-11-29 05:49:58,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650727786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:49:58,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:49:58,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 05:49:58,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160372750] [2023-11-29 05:49:58,824 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:58,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:49:58,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:58,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:49:58,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:49:58,825 INFO L87 Difference]: Start difference. First operand 478 states and 631 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:49:59,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:59,368 INFO L93 Difference]: Finished difference Result 486 states and 635 transitions. [2023-11-29 05:49:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:49:59,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 90 [2023-11-29 05:49:59,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:59,371 INFO L225 Difference]: With dead ends: 486 [2023-11-29 05:49:59,371 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 05:49:59,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:49:59,372 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:59,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 411 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:49:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 05:49:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 458. [2023-11-29 05:49:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 378 states have (on average 1.3280423280423281) internal successors, (502), 411 states have internal predecessors, (502), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 05:49:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 590 transitions. [2023-11-29 05:49:59,413 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 590 transitions. Word has length 90 [2023-11-29 05:49:59,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:59,414 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 590 transitions. [2023-11-29 05:49:59,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:49:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 590 transitions. [2023-11-29 05:49:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 05:49:59,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:59,414 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:59,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 05:49:59,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 05:49:59,615 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:49:59,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1144741604, now seen corresponding path program 1 times [2023-11-29 05:49:59,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:59,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571561824] [2023-11-29 05:49:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:59,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:59,622 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906939949] [2023-11-29 05:49:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:59,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:59,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:59,623 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:59,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 05:49:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:59,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:49:59,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 05:49:59,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:00,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:00,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571561824] [2023-11-29 05:50:00,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:00,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906939949] [2023-11-29 05:50:00,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906939949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:00,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:00,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:50:00,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136540463] [2023-11-29 05:50:00,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:00,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:50:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:50:00,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:00,130 INFO L87 Difference]: Start difference. First operand 458 states and 590 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 05:50:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:00,929 INFO L93 Difference]: Finished difference Result 617 states and 752 transitions. [2023-11-29 05:50:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:50:00,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 92 [2023-11-29 05:50:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:00,932 INFO L225 Difference]: With dead ends: 617 [2023-11-29 05:50:00,932 INFO L226 Difference]: Without dead ends: 616 [2023-11-29 05:50:00,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:50:00,932 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 452 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:00,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 262 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:50:00,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-11-29 05:50:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 458. [2023-11-29 05:50:00,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 378 states have (on average 1.3227513227513228) internal successors, (500), 411 states have internal predecessors, (500), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 05:50:00,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 588 transitions. [2023-11-29 05:50:00,974 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 588 transitions. Word has length 92 [2023-11-29 05:50:00,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:00,974 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 588 transitions. [2023-11-29 05:50:00,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 05:50:00,974 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 588 transitions. [2023-11-29 05:50:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 05:50:00,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:00,975 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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] [2023-11-29 05:50:00,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 05:50:01,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 05:50:01,176 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:01,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1127251439, now seen corresponding path program 1 times [2023-11-29 05:50:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:01,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111470578] [2023-11-29 05:50:01,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:01,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:01,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:01,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305909310] [2023-11-29 05:50:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:01,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:01,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:01,185 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:01,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 05:50:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:01,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:50:01,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:01,448 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 05:50:01,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:01,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:01,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111470578] [2023-11-29 05:50:01,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:01,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305909310] [2023-11-29 05:50:01,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305909310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:01,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:01,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:50:01,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484172152] [2023-11-29 05:50:01,495 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:01,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:50:01,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:50:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:01,496 INFO L87 Difference]: Start difference. First operand 458 states and 588 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:50:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:02,140 INFO L93 Difference]: Finished difference Result 466 states and 588 transitions. [2023-11-29 05:50:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:50:02,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2023-11-29 05:50:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:02,144 INFO L225 Difference]: With dead ends: 466 [2023-11-29 05:50:02,144 INFO L226 Difference]: Without dead ends: 462 [2023-11-29 05:50:02,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:50:02,145 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 154 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:02,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 127 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:50:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-29 05:50:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 383. [2023-11-29 05:50:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 344 states have internal predecessors, (400), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 05:50:02,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 472 transitions. [2023-11-29 05:50:02,201 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 472 transitions. Word has length 93 [2023-11-29 05:50:02,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:02,201 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 472 transitions. [2023-11-29 05:50:02,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:50:02,201 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 472 transitions. [2023-11-29 05:50:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 05:50:02,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:02,202 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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] [2023-11-29 05:50:02,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 05:50:02,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 05:50:02,403 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:02,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash 585056326, now seen corresponding path program 1 times [2023-11-29 05:50:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:02,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728613300] [2023-11-29 05:50:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:02,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:02,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:02,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999340518] [2023-11-29 05:50:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:02,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:02,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:02,413 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:02,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 05:50:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:02,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:50:02,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 23 proven. 19 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-29 05:50:03,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:03,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728613300] [2023-11-29 05:50:03,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999340518] [2023-11-29 05:50:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999340518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:03,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:03,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:50:03,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995840552] [2023-11-29 05:50:03,491 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:03,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:50:03,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:03,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:50:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:50:03,492 INFO L87 Difference]: Start difference. First operand 383 states and 472 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:50:09,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:16,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:21,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:25,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:50:31,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:31,077 INFO L93 Difference]: Finished difference Result 477 states and 571 transitions. [2023-11-29 05:50:31,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:50:31,078 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2023-11-29 05:50:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:31,081 INFO L225 Difference]: With dead ends: 477 [2023-11-29 05:50:31,081 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 05:50:31,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:50:31,082 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 268 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 18 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:31,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 441 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1226 Invalid, 5 Unknown, 0 Unchecked, 26.9s Time] [2023-11-29 05:50:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 05:50:31,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 374. [2023-11-29 05:50:31,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 308 states have (on average 1.2629870129870129) internal successors, (389), 336 states have internal predecessors, (389), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 05:50:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 459 transitions. [2023-11-29 05:50:31,122 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 459 transitions. Word has length 94 [2023-11-29 05:50:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:31,123 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 459 transitions. [2023-11-29 05:50:31,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 05:50:31,123 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 459 transitions. [2023-11-29 05:50:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 05:50:31,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:31,124 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:31,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 05:50:31,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 05:50:31,324 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:31,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -397659918, now seen corresponding path program 1 times [2023-11-29 05:50:31,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:31,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750733404] [2023-11-29 05:50:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:31,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:31,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426768038] [2023-11-29 05:50:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:31,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:31,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:31,332 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:31,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 05:50:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:31,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:50:31,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 05:50:31,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 05:50:31,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:31,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750733404] [2023-11-29 05:50:31,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:31,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426768038] [2023-11-29 05:50:31,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426768038] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:50:31,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:50:31,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 05:50:31,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886335098] [2023-11-29 05:50:31,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:31,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:50:31,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:50:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:50:31,540 INFO L87 Difference]: Start difference. First operand 374 states and 459 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 05:50:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:31,945 INFO L93 Difference]: Finished difference Result 389 states and 469 transitions. [2023-11-29 05:50:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:31,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 98 [2023-11-29 05:50:31,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:31,949 INFO L225 Difference]: With dead ends: 389 [2023-11-29 05:50:31,949 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 05:50:31,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:31,950 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 109 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:31,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 112 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:50:31,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 05:50:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 343. [2023-11-29 05:50:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 282 states have (on average 1.2730496453900708) internal successors, (359), 308 states have internal predecessors, (359), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 05:50:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 423 transitions. [2023-11-29 05:50:31,988 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 423 transitions. Word has length 98 [2023-11-29 05:50:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:31,989 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 423 transitions. [2023-11-29 05:50:31,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 05:50:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 423 transitions. [2023-11-29 05:50:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 05:50:31,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:31,990 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2023-11-29 05:50:31,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 05:50:32,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:32,191 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:32,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:32,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1942787823, now seen corresponding path program 1 times [2023-11-29 05:50:32,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:32,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281391683] [2023-11-29 05:50:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:32,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:32,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409567123] [2023-11-29 05:50:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:32,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:32,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:32,198 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:32,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 05:50:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:32,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:50:32,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:32,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:32,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281391683] [2023-11-29 05:50:32,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409567123] [2023-11-29 05:50:32,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409567123] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:50:32,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:50:32,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:50:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502779162] [2023-11-29 05:50:32,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:32,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:50:32,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:50:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:32,479 INFO L87 Difference]: Start difference. First operand 343 states and 423 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 05:50:32,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:32,909 INFO L93 Difference]: Finished difference Result 718 states and 872 transitions. [2023-11-29 05:50:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:50:32,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 103 [2023-11-29 05:50:32,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:32,914 INFO L225 Difference]: With dead ends: 718 [2023-11-29 05:50:32,914 INFO L226 Difference]: Without dead ends: 717 [2023-11-29 05:50:32,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:50:32,915 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1036 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:32,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 467 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:50:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-29 05:50:33,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 495. [2023-11-29 05:50:33,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 418 states have (on average 1.3181818181818181) internal successors, (551), 444 states have internal predecessors, (551), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 05:50:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 647 transitions. [2023-11-29 05:50:33,006 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 647 transitions. Word has length 103 [2023-11-29 05:50:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:33,006 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 647 transitions. [2023-11-29 05:50:33,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 05:50:33,006 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 647 transitions. [2023-11-29 05:50:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 05:50:33,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:33,007 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2023-11-29 05:50:33,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 05:50:33,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:33,208 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:33,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:33,208 INFO L85 PathProgramCache]: Analyzing trace with hash -183187217, now seen corresponding path program 1 times [2023-11-29 05:50:33,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:33,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328932103] [2023-11-29 05:50:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:33,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:33,217 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:33,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680178794] [2023-11-29 05:50:33,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:33,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:33,223 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:33,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 05:50:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:33,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:50:33,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:33,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:33,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:33,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328932103] [2023-11-29 05:50:33,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:33,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680178794] [2023-11-29 05:50:33,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680178794] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:50:33,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:50:33,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:50:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452612965] [2023-11-29 05:50:33,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:33,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:50:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:33,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:50:33,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:33,557 INFO L87 Difference]: Start difference. First operand 495 states and 647 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 05:50:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:33,922 INFO L93 Difference]: Finished difference Result 644 states and 816 transitions. [2023-11-29 05:50:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:50:33,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 103 [2023-11-29 05:50:33,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:33,926 INFO L225 Difference]: With dead ends: 644 [2023-11-29 05:50:33,926 INFO L226 Difference]: Without dead ends: 643 [2023-11-29 05:50:33,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:50:33,927 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 545 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:33,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 381 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:50:33,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-11-29 05:50:33,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 583. [2023-11-29 05:50:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 497 states have (on average 1.3340040241448692) internal successors, (663), 523 states have internal predecessors, (663), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 05:50:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 777 transitions. [2023-11-29 05:50:33,996 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 777 transitions. Word has length 103 [2023-11-29 05:50:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:33,996 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 777 transitions. [2023-11-29 05:50:33,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 05:50:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 777 transitions. [2023-11-29 05:50:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 05:50:33,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:33,998 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:34,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 05:50:34,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 05:50:34,198 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:34,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:34,199 INFO L85 PathProgramCache]: Analyzing trace with hash -183173315, now seen corresponding path program 1 times [2023-11-29 05:50:34,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:34,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096867645] [2023-11-29 05:50:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:34,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:34,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:34,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961672580] [2023-11-29 05:50:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:34,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:34,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:34,208 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:34,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 05:50:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:34,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:50:34,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:34,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:34,563 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096867645] [2023-11-29 05:50:34,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:34,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961672580] [2023-11-29 05:50:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961672580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:50:34,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:50:34,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:50:34,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088365559] [2023-11-29 05:50:34,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:34,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:50:34,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:50:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:34,565 INFO L87 Difference]: Start difference. First operand 583 states and 777 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 05:50:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:34,964 INFO L93 Difference]: Finished difference Result 802 states and 1025 transitions. [2023-11-29 05:50:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:50:34,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 103 [2023-11-29 05:50:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:34,969 INFO L225 Difference]: With dead ends: 802 [2023-11-29 05:50:34,969 INFO L226 Difference]: Without dead ends: 801 [2023-11-29 05:50:34,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:50:34,970 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 424 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:34,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 405 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:50:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2023-11-29 05:50:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 642. [2023-11-29 05:50:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 550 states have (on average 1.3127272727272727) internal successors, (722), 576 states have internal predecessors, (722), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-29 05:50:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 848 transitions. [2023-11-29 05:50:35,070 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 848 transitions. Word has length 103 [2023-11-29 05:50:35,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:35,070 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 848 transitions. [2023-11-29 05:50:35,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 05:50:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 848 transitions. [2023-11-29 05:50:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 05:50:35,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:35,071 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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 05:50:35,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 05:50:35,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 05:50:35,272 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:35,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1801301019, now seen corresponding path program 1 times [2023-11-29 05:50:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228170827] [2023-11-29 05:50:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:35,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:35,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:35,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884065345] [2023-11-29 05:50:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:35,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:35,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:35,280 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:35,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 05:50:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:35,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:50:35,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:35,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:35,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228170827] [2023-11-29 05:50:35,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884065345] [2023-11-29 05:50:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884065345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:50:35,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:50:35,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:50:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388970064] [2023-11-29 05:50:35,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:35,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:50:35,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:35,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:50:35,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:50:35,601 INFO L87 Difference]: Start difference. First operand 642 states and 848 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:50:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:36,655 INFO L93 Difference]: Finished difference Result 1034 states and 1294 transitions. [2023-11-29 05:50:36,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:50:36,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 106 [2023-11-29 05:50:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:36,661 INFO L225 Difference]: With dead ends: 1034 [2023-11-29 05:50:36,661 INFO L226 Difference]: Without dead ends: 1032 [2023-11-29 05:50:36,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:36,662 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 317 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:36,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 246 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:50:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2023-11-29 05:50:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 831. [2023-11-29 05:50:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 721 states have (on average 1.3134535367545077) internal successors, (947), 747 states have internal predecessors, (947), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 05:50:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1109 transitions. [2023-11-29 05:50:36,766 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1109 transitions. Word has length 106 [2023-11-29 05:50:36,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:36,766 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1109 transitions. [2023-11-29 05:50:36,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:50:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1109 transitions. [2023-11-29 05:50:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 05:50:36,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:36,767 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:36,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 05:50:36,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:36,967 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:36,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2107109653, now seen corresponding path program 1 times [2023-11-29 05:50:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102726563] [2023-11-29 05:50:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:36,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:36,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:36,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931600697] [2023-11-29 05:50:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:36,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:36,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:36,975 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:36,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 05:50:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:37,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:50:37,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:37,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:37,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:37,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102726563] [2023-11-29 05:50:37,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:37,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931600697] [2023-11-29 05:50:37,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931600697] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:37,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:37,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:50:37,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452487428] [2023-11-29 05:50:37,401 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:37,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:50:37,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:37,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:50:37,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:37,402 INFO L87 Difference]: Start difference. First operand 831 states and 1109 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:38,275 INFO L93 Difference]: Finished difference Result 1001 states and 1293 transitions. [2023-11-29 05:50:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:38,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2023-11-29 05:50:38,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:38,280 INFO L225 Difference]: With dead ends: 1001 [2023-11-29 05:50:38,280 INFO L226 Difference]: Without dead ends: 997 [2023-11-29 05:50:38,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:50:38,282 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 182 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:38,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 291 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:50:38,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-11-29 05:50:38,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 827. [2023-11-29 05:50:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 721 states have (on average 1.2690707350901527) internal successors, (915), 743 states have internal predecessors, (915), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 05:50:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1077 transitions. [2023-11-29 05:50:38,399 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1077 transitions. Word has length 109 [2023-11-29 05:50:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:38,399 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 1077 transitions. [2023-11-29 05:50:38,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1077 transitions. [2023-11-29 05:50:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 05:50:38,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:38,400 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:38,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 05:50:38,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:38,600 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:38,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash 895889854, now seen corresponding path program 1 times [2023-11-29 05:50:38,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:38,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781552127] [2023-11-29 05:50:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:38,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:38,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:38,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14828856] [2023-11-29 05:50:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:38,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:38,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:38,609 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:38,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 05:50:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:38,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:50:38,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:38,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:39,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781552127] [2023-11-29 05:50:39,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:39,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14828856] [2023-11-29 05:50:39,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14828856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:39,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:39,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:50:39,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157511019] [2023-11-29 05:50:39,059 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:39,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:50:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:39,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:50:39,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:39,060 INFO L87 Difference]: Start difference. First operand 827 states and 1077 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:39,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:39,437 INFO L93 Difference]: Finished difference Result 877 states and 1114 transitions. [2023-11-29 05:50:39,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:50:39,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 110 [2023-11-29 05:50:39,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:39,441 INFO L225 Difference]: With dead ends: 877 [2023-11-29 05:50:39,441 INFO L226 Difference]: Without dead ends: 875 [2023-11-29 05:50:39,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 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 05:50:39,442 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 188 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:39,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 182 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:50:39,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-11-29 05:50:39,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 843. [2023-11-29 05:50:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 735 states have (on average 1.2653061224489797) internal successors, (930), 757 states have internal predecessors, (930), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-29 05:50:39,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1096 transitions. [2023-11-29 05:50:39,549 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1096 transitions. Word has length 110 [2023-11-29 05:50:39,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:39,549 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1096 transitions. [2023-11-29 05:50:39,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1096 transitions. [2023-11-29 05:50:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 05:50:39,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:39,550 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:39,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 05:50:39,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 05:50:39,751 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:39,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash 815465278, now seen corresponding path program 2 times [2023-11-29 05:50:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749633466] [2023-11-29 05:50:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:39,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:39,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:39,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1392782648] [2023-11-29 05:50:39,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:50:39,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:39,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:39,760 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:39,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 05:50:39,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:50:39,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:50:39,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:50:39,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:40,154 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:40,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:40,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:40,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749633466] [2023-11-29 05:50:40,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:40,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392782648] [2023-11-29 05:50:40,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392782648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:40,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:40,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:50:40,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64498059] [2023-11-29 05:50:40,226 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:40,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:50:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:50:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:40,227 INFO L87 Difference]: Start difference. First operand 843 states and 1096 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:40,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:40,805 INFO L93 Difference]: Finished difference Result 939 states and 1199 transitions. [2023-11-29 05:50:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:40,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 110 [2023-11-29 05:50:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:40,809 INFO L225 Difference]: With dead ends: 939 [2023-11-29 05:50:40,809 INFO L226 Difference]: Without dead ends: 937 [2023-11-29 05:50:40,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:50:40,810 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 169 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:40,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 142 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:50:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-11-29 05:50:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 876. [2023-11-29 05:50:40,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 764 states have (on average 1.2657068062827226) internal successors, (967), 786 states have internal predecessors, (967), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:50:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1141 transitions. [2023-11-29 05:50:40,970 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1141 transitions. Word has length 110 [2023-11-29 05:50:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:40,970 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1141 transitions. [2023-11-29 05:50:40,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1141 transitions. [2023-11-29 05:50:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 05:50:40,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:40,971 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:40,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 05:50:41,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:41,172 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:41,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1956692192, now seen corresponding path program 1 times [2023-11-29 05:50:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:41,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912002740] [2023-11-29 05:50:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:41,178 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:41,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228014944] [2023-11-29 05:50:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:41,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:41,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:41,179 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:41,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 05:50:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:41,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:50:41,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:41,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:41,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:41,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912002740] [2023-11-29 05:50:41,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:41,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228014944] [2023-11-29 05:50:41,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228014944] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:50:41,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:50:41,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-29 05:50:41,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369728704] [2023-11-29 05:50:41,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:41,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:50:41,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:50:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:50:41,807 INFO L87 Difference]: Start difference. First operand 876 states and 1141 transitions. Second operand has 9 states, 8 states have (on average 16.0) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:50:46,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:46,020 INFO L93 Difference]: Finished difference Result 948 states and 1212 transitions. [2023-11-29 05:50:46,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:50:46,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.0) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 112 [2023-11-29 05:50:46,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:46,025 INFO L225 Difference]: With dead ends: 948 [2023-11-29 05:50:46,025 INFO L226 Difference]: Without dead ends: 944 [2023-11-29 05:50:46,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:50:46,026 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 248 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:46,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 394 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 05:50:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-11-29 05:50:46,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 897. [2023-11-29 05:50:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 786 states have (on average 1.2582697201017812) internal successors, (989), 807 states have internal predecessors, (989), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:50:46,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1163 transitions. [2023-11-29 05:50:46,145 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1163 transitions. Word has length 112 [2023-11-29 05:50:46,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:46,146 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1163 transitions. [2023-11-29 05:50:46,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.0) internal successors, (128), 9 states have internal predecessors, (128), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:50:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1163 transitions. [2023-11-29 05:50:46,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 05:50:46,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:46,147 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:46,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 05:50:46,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 05:50:46,347 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:46,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1978085984, now seen corresponding path program 2 times [2023-11-29 05:50:46,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:46,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324273093] [2023-11-29 05:50:46,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:46,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:46,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247697464] [2023-11-29 05:50:46,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:50:46,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:46,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:46,356 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:46,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 05:50:46,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:50:46,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:50:46,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:50:46,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:46,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:46,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:46,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324273093] [2023-11-29 05:50:46,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:46,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247697464] [2023-11-29 05:50:46,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247697464] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:46,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:50:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947749413] [2023-11-29 05:50:46,821 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:46,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:50:46,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:50:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:46,822 INFO L87 Difference]: Start difference. First operand 897 states and 1163 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:47,473 INFO L93 Difference]: Finished difference Result 957 states and 1218 transitions. [2023-11-29 05:50:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 112 [2023-11-29 05:50:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:47,478 INFO L225 Difference]: With dead ends: 957 [2023-11-29 05:50:47,478 INFO L226 Difference]: Without dead ends: 956 [2023-11-29 05:50:47,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:50:47,478 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 112 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:47,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 183 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:50:47,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-11-29 05:50:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 897. [2023-11-29 05:50:47,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 786 states have (on average 1.256997455470738) internal successors, (988), 807 states have internal predecessors, (988), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:50:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1162 transitions. [2023-11-29 05:50:47,599 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1162 transitions. Word has length 112 [2023-11-29 05:50:47,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:47,599 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1162 transitions. [2023-11-29 05:50:47,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:47,599 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1162 transitions. [2023-11-29 05:50:47,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 05:50:47,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:47,600 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 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 05:50:47,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 05:50:47,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 05:50:47,801 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:47,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash 527915865, now seen corresponding path program 1 times [2023-11-29 05:50:47,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:47,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902821210] [2023-11-29 05:50:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:47,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:47,810 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:47,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125656453] [2023-11-29 05:50:47,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:47,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:47,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:47,811 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:47,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 05:50:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:47,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:50:47,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:48,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:48,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:48,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902821210] [2023-11-29 05:50:48,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:48,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125656453] [2023-11-29 05:50:48,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125656453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:48,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:48,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:50:48,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513361202] [2023-11-29 05:50:48,516 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:48,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:50:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:48,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:50:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:48,517 INFO L87 Difference]: Start difference. First operand 897 states and 1162 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:49,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:49,785 INFO L93 Difference]: Finished difference Result 990 states and 1256 transitions. [2023-11-29 05:50:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:49,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 113 [2023-11-29 05:50:49,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:49,789 INFO L225 Difference]: With dead ends: 990 [2023-11-29 05:50:49,789 INFO L226 Difference]: Without dead ends: 986 [2023-11-29 05:50:49,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:50:49,790 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 251 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:49,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 221 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:50:49,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-11-29 05:50:49,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 932. [2023-11-29 05:50:49,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 817 states have (on average 1.2460220318237454) internal successors, (1018), 838 states have internal predecessors, (1018), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 05:50:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1200 transitions. [2023-11-29 05:50:49,916 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1200 transitions. Word has length 113 [2023-11-29 05:50:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:49,916 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 1200 transitions. [2023-11-29 05:50:49,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1200 transitions. [2023-11-29 05:50:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 05:50:49,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:49,918 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 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 05:50:49,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 05:50:50,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2023-11-29 05:50:50,118 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:50,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:50,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1191123417, now seen corresponding path program 2 times [2023-11-29 05:50:50,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:50,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439471403] [2023-11-29 05:50:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:50,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:50,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930317323] [2023-11-29 05:50:50,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:50:50,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:50,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:50,128 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:50,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 05:50:50,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:50:50,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:50:50,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:50:50,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:50,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 05:50:50,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:50,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439471403] [2023-11-29 05:50:50,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:50,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930317323] [2023-11-29 05:50:50,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930317323] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:50,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:50,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-29 05:50:50,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076930685] [2023-11-29 05:50:50,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:50:50,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:50:50,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:50,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:50:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:50:50,773 INFO L87 Difference]: Start difference. First operand 932 states and 1200 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:50:52,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:52,569 INFO L93 Difference]: Finished difference Result 932 states and 1200 transitions. [2023-11-29 05:50:52,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:52,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 113 [2023-11-29 05:50:52,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:52,575 INFO L225 Difference]: With dead ends: 932 [2023-11-29 05:50:52,575 INFO L226 Difference]: Without dead ends: 931 [2023-11-29 05:50:52,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:50:52,576 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:52,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 125 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 05:50:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-11-29 05:50:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2023-11-29 05:50:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 817 states have (on average 1.233782129742962) internal successors, (1008), 837 states have internal predecessors, (1008), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 05:50:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1190 transitions. [2023-11-29 05:50:52,710 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1190 transitions. Word has length 113 [2023-11-29 05:50:52,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:52,711 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1190 transitions. [2023-11-29 05:50:52,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:50:52,711 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1190 transitions. [2023-11-29 05:50:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 05:50:52,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:52,712 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:52,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 05:50:52,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 05:50:52,912 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:52,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:52,913 INFO L85 PathProgramCache]: Analyzing trace with hash -814477310, now seen corresponding path program 1 times [2023-11-29 05:50:52,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:52,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943750890] [2023-11-29 05:50:52,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:52,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:52,922 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:52,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173285752] [2023-11-29 05:50:52,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:52,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:52,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:52,923 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:52,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 05:50:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:52,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:50:52,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:50:53,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:50:57,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:57,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943750890] [2023-11-29 05:50:57,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:57,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173285752] [2023-11-29 05:50:57,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173285752] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:50:57,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:50:57,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:50:57,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382089359] [2023-11-29 05:50:57,891 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:50:57,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:50:57,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:57,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:50:57,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=59, Unknown=1, NotChecked=0, Total=90 [2023-11-29 05:50:57,892 INFO L87 Difference]: Start difference. First operand 931 states and 1190 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:58,825 INFO L93 Difference]: Finished difference Result 980 states and 1231 transitions. [2023-11-29 05:50:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:50:58,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2023-11-29 05:50:58,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:58,829 INFO L225 Difference]: With dead ends: 980 [2023-11-29 05:50:58,829 INFO L226 Difference]: Without dead ends: 963 [2023-11-29 05:50:58,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=52, Invalid=103, Unknown=1, NotChecked=0, Total=156 [2023-11-29 05:50:58,830 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 259 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:58,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 245 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:50:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-29 05:50:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 907. [2023-11-29 05:50:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 796 states have (on average 1.2273869346733668) internal successors, (977), 816 states have internal predecessors, (977), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 05:50:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1153 transitions. [2023-11-29 05:50:58,957 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1153 transitions. Word has length 114 [2023-11-29 05:50:58,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:58,957 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1153 transitions. [2023-11-29 05:50:58,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:50:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1153 transitions. [2023-11-29 05:50:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 05:50:58,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:58,958 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:58,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 05:50:59,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 05:50:59,159 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:50:59,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:50:59,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1629868459, now seen corresponding path program 1 times [2023-11-29 05:50:59,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:50:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389784848] [2023-11-29 05:50:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:59,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:50:59,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:50:59,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507401519] [2023-11-29 05:50:59,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:50:59,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:50:59,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:50:59,167 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:50:59,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 05:50:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:50:59,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:50:59,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-29 05:50:59,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:50:59,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:50:59,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389784848] [2023-11-29 05:50:59,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:50:59,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507401519] [2023-11-29 05:50:59,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507401519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:50:59,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:50:59,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:50:59,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319394831] [2023-11-29 05:50:59,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:50:59,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:50:59,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:50:59,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:50:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:50:59,437 INFO L87 Difference]: Start difference. First operand 907 states and 1153 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:50:59,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:50:59,843 INFO L93 Difference]: Finished difference Result 929 states and 1170 transitions. [2023-11-29 05:50:59,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:50:59,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 115 [2023-11-29 05:50:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:50:59,849 INFO L225 Difference]: With dead ends: 929 [2023-11-29 05:50:59,849 INFO L226 Difference]: Without dead ends: 917 [2023-11-29 05:50:59,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:50:59,850 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 103 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:50:59,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 110 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:50:59,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2023-11-29 05:50:59,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 896. [2023-11-29 05:50:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 786 states have (on average 1.2239185750636132) internal successors, (962), 806 states have internal predecessors, (962), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:50:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1136 transitions. [2023-11-29 05:50:59,979 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1136 transitions. Word has length 115 [2023-11-29 05:50:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:50:59,979 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1136 transitions. [2023-11-29 05:50:59,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:50:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1136 transitions. [2023-11-29 05:50:59,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 05:50:59,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:50:59,980 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:50:59,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 05:51:00,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:00,180 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:00,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:00,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1729879678, now seen corresponding path program 2 times [2023-11-29 05:51:00,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:00,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537769355] [2023-11-29 05:51:00,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:00,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:00,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:00,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440448864] [2023-11-29 05:51:00,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:51:00,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:00,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:00,191 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:00,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 05:51:00,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:51:00,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:00,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:51:00,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:51:00,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:01,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:01,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537769355] [2023-11-29 05:51:01,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:01,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440448864] [2023-11-29 05:51:01,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440448864] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:01,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:01,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:51:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986048311] [2023-11-29 05:51:01,327 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:01,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:01,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:01,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:51:01,329 INFO L87 Difference]: Start difference. First operand 896 states and 1136 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:51:02,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:02,412 INFO L93 Difference]: Finished difference Result 946 states and 1187 transitions. [2023-11-29 05:51:02,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:51:02,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2023-11-29 05:51:02,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:02,417 INFO L225 Difference]: With dead ends: 946 [2023-11-29 05:51:02,417 INFO L226 Difference]: Without dead ends: 942 [2023-11-29 05:51:02,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:51:02,418 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 205 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:02,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 214 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:51:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-11-29 05:51:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 850. [2023-11-29 05:51:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 750 states have (on average 1.208) internal successors, (906), 766 states have internal predecessors, (906), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 05:51:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1068 transitions. [2023-11-29 05:51:02,541 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1068 transitions. Word has length 114 [2023-11-29 05:51:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:02,542 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1068 transitions. [2023-11-29 05:51:02,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:51:02,542 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1068 transitions. [2023-11-29 05:51:02,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 05:51:02,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:02,542 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:02,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 05:51:02,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:02,743 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:02,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:02,743 INFO L85 PathProgramCache]: Analyzing trace with hash -18818554, now seen corresponding path program 2 times [2023-11-29 05:51:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:02,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250869651] [2023-11-29 05:51:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:02,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:02,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:02,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473151057] [2023-11-29 05:51:02,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:51:02,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:02,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:02,750 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:02,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 05:51:02,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:51:02,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:02,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:51:02,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 24 proven. 54 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-29 05:51:03,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:03,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250869651] [2023-11-29 05:51:03,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473151057] [2023-11-29 05:51:03,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473151057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:03,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:03,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 05:51:03,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19516016] [2023-11-29 05:51:03,651 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:03,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:51:03,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:03,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:51:03,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:51:03,653 INFO L87 Difference]: Start difference. First operand 850 states and 1068 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:06,119 INFO L93 Difference]: Finished difference Result 898 states and 1118 transitions. [2023-11-29 05:51:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:51:06,119 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-11-29 05:51:06,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:06,123 INFO L225 Difference]: With dead ends: 898 [2023-11-29 05:51:06,123 INFO L226 Difference]: Without dead ends: 896 [2023-11-29 05:51:06,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:51:06,124 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 228 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:06,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 485 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:51:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-29 05:51:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 850. [2023-11-29 05:51:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 750 states have (on average 1.2053333333333334) internal successors, (904), 766 states have internal predecessors, (904), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-29 05:51:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1066 transitions. [2023-11-29 05:51:06,248 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1066 transitions. Word has length 120 [2023-11-29 05:51:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:06,248 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1066 transitions. [2023-11-29 05:51:06,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1066 transitions. [2023-11-29 05:51:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 05:51:06,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:06,249 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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, 1, 1, 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 05:51:06,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 05:51:06,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 05:51:06,450 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:06,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1592285048, now seen corresponding path program 1 times [2023-11-29 05:51:06,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:06,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568327840] [2023-11-29 05:51:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:06,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:06,456 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:06,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368141225] [2023-11-29 05:51:06,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:06,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:06,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:06,457 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:06,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 05:51:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:06,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:51:06,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 3 proven. 48 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 05:51:07,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:11,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568327840] [2023-11-29 05:51:11,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368141225] [2023-11-29 05:51:11,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368141225] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:11,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:11,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:51:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969624043] [2023-11-29 05:51:11,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:11,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:51:11,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:11,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:51:11,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2023-11-29 05:51:11,165 INFO L87 Difference]: Start difference. First operand 850 states and 1066 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:12,215 INFO L93 Difference]: Finished difference Result 1013 states and 1256 transitions. [2023-11-29 05:51:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:51:12,215 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-11-29 05:51:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:12,217 INFO L225 Difference]: With dead ends: 1013 [2023-11-29 05:51:12,217 INFO L226 Difference]: Without dead ends: 1012 [2023-11-29 05:51:12,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=76, Invalid=195, Unknown=1, NotChecked=0, Total=272 [2023-11-29 05:51:12,218 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 208 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:12,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 524 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:51:12,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2023-11-29 05:51:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 854. [2023-11-29 05:51:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 753 states have (on average 1.204515272244356) internal successors, (907), 769 states have internal predecessors, (907), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 05:51:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1071 transitions. [2023-11-29 05:51:12,340 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1071 transitions. Word has length 120 [2023-11-29 05:51:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:12,340 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1071 transitions. [2023-11-29 05:51:12,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:12,341 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1071 transitions. [2023-11-29 05:51:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 05:51:12,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:12,342 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:12,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 05:51:12,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 05:51:12,542 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:12,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:12,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2145111562, now seen corresponding path program 1 times [2023-11-29 05:51:12,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:12,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888002752] [2023-11-29 05:51:12,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:12,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:12,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:12,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021550982] [2023-11-29 05:51:12,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:12,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:12,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:12,552 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:12,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 05:51:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:12,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:51:12,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 05:51:13,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888002752] [2023-11-29 05:51:13,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021550982] [2023-11-29 05:51:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021550982] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:13,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:51:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400600022] [2023-11-29 05:51:13,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:51:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:51:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:51:13,372 INFO L87 Difference]: Start difference. First operand 854 states and 1071 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:14,513 INFO L93 Difference]: Finished difference Result 1005 states and 1248 transitions. [2023-11-29 05:51:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:51:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 123 [2023-11-29 05:51:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:14,516 INFO L225 Difference]: With dead ends: 1005 [2023-11-29 05:51:14,516 INFO L226 Difference]: Without dead ends: 1004 [2023-11-29 05:51:14,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:51:14,516 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 227 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:14,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 429 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:51:14,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2023-11-29 05:51:14,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 857. [2023-11-29 05:51:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 756 states have (on average 1.2037037037037037) internal successors, (910), 772 states have internal predecessors, (910), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 05:51:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1074 transitions. [2023-11-29 05:51:14,639 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1074 transitions. Word has length 123 [2023-11-29 05:51:14,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:14,640 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1074 transitions. [2023-11-29 05:51:14,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1074 transitions. [2023-11-29 05:51:14,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 05:51:14,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:14,640 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:14,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:14,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 05:51:14,841 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:14,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:14,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2073949052, now seen corresponding path program 1 times [2023-11-29 05:51:14,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:14,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665899117] [2023-11-29 05:51:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:14,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:14,849 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:14,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768306013] [2023-11-29 05:51:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:14,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:14,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:14,850 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:14,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 05:51:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:14,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 05:51:14,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 05:51:15,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:15,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665899117] [2023-11-29 05:51:15,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768306013] [2023-11-29 05:51:15,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768306013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:15,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:15,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:51:15,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481825337] [2023-11-29 05:51:15,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:15,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:51:15,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:51:15,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:51:15,892 INFO L87 Difference]: Start difference. First operand 857 states and 1074 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:17,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:17,431 INFO L93 Difference]: Finished difference Result 1004 states and 1247 transitions. [2023-11-29 05:51:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:51:17,431 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 124 [2023-11-29 05:51:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:17,434 INFO L225 Difference]: With dead ends: 1004 [2023-11-29 05:51:17,434 INFO L226 Difference]: Without dead ends: 994 [2023-11-29 05:51:17,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:51:17,434 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 246 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:17,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 411 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:51:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-29 05:51:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 929. [2023-11-29 05:51:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 820 states have (on average 1.2060975609756097) internal successors, (989), 836 states have internal predecessors, (989), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 05:51:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1169 transitions. [2023-11-29 05:51:17,569 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1169 transitions. Word has length 124 [2023-11-29 05:51:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:17,569 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1169 transitions. [2023-11-29 05:51:17,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 05:51:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1169 transitions. [2023-11-29 05:51:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 05:51:17,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:17,570 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:17,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:17,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 05:51:17,770 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:17,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1885391059, now seen corresponding path program 1 times [2023-11-29 05:51:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:17,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668621896] [2023-11-29 05:51:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:17,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:17,776 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:17,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073558905] [2023-11-29 05:51:17,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:17,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:17,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:17,777 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:17,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 05:51:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:17,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:51:17,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 05:51:17,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 05:51:18,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:18,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668621896] [2023-11-29 05:51:18,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:18,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073558905] [2023-11-29 05:51:18,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073558905] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:18,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:18,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 05:51:18,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282598285] [2023-11-29 05:51:18,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:18,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:18,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:18,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:18,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:51:18,021 INFO L87 Difference]: Start difference. First operand 929 states and 1169 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 05:51:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:18,677 INFO L93 Difference]: Finished difference Result 931 states and 1171 transitions. [2023-11-29 05:51:18,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:51:18,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-11-29 05:51:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:18,679 INFO L225 Difference]: With dead ends: 931 [2023-11-29 05:51:18,679 INFO L226 Difference]: Without dead ends: 909 [2023-11-29 05:51:18,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:18,680 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 33 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:18,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 112 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:51:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-11-29 05:51:18,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 907. [2023-11-29 05:51:18,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.2032418952618453) internal successors, (965), 816 states have internal predecessors, (965), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 05:51:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1141 transitions. [2023-11-29 05:51:18,815 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1141 transitions. Word has length 126 [2023-11-29 05:51:18,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:18,815 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1141 transitions. [2023-11-29 05:51:18,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 05:51:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1141 transitions. [2023-11-29 05:51:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 05:51:18,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:18,816 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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, 1, 1, 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 05:51:18,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 05:51:19,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 05:51:19,017 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:19,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:19,017 INFO L85 PathProgramCache]: Analyzing trace with hash -712473141, now seen corresponding path program 1 times [2023-11-29 05:51:19,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:19,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776775306] [2023-11-29 05:51:19,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:19,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:19,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:19,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129956458] [2023-11-29 05:51:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:19,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:19,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:19,026 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:19,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 05:51:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:19,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:51:19,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 05:51:19,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:22,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:22,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776775306] [2023-11-29 05:51:22,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:22,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129956458] [2023-11-29 05:51:22,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129956458] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:22,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:22,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:51:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858983321] [2023-11-29 05:51:22,924 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:22,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:51:22,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:22,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:51:22,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2023-11-29 05:51:22,925 INFO L87 Difference]: Start difference. First operand 907 states and 1141 transitions. Second operand has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 05:51:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:23,502 INFO L93 Difference]: Finished difference Result 967 states and 1205 transitions. [2023-11-29 05:51:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:51:23,503 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 131 [2023-11-29 05:51:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:23,504 INFO L225 Difference]: With dead ends: 967 [2023-11-29 05:51:23,504 INFO L226 Difference]: Without dead ends: 966 [2023-11-29 05:51:23,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=66, Invalid=173, Unknown=1, NotChecked=0, Total=240 [2023-11-29 05:51:23,505 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 115 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:23,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 492 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:51:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-11-29 05:51:23,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 907. [2023-11-29 05:51:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.201995012468828) internal successors, (964), 816 states have internal predecessors, (964), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 05:51:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1140 transitions. [2023-11-29 05:51:23,639 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1140 transitions. Word has length 131 [2023-11-29 05:51:23,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:23,639 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1140 transitions. [2023-11-29 05:51:23,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 05:51:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1140 transitions. [2023-11-29 05:51:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 05:51:23,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:23,640 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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] [2023-11-29 05:51:23,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:23,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:23,841 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:23,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:23,841 INFO L85 PathProgramCache]: Analyzing trace with hash 637308185, now seen corresponding path program 2 times [2023-11-29 05:51:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:23,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878358272] [2023-11-29 05:51:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:23,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:23,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241071794] [2023-11-29 05:51:23,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:51:23,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:23,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:23,848 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:23,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 05:51:23,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:51:23,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:23,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 05:51:23,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 68 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-29 05:51:24,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:24,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878358272] [2023-11-29 05:51:24,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241071794] [2023-11-29 05:51:24,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241071794] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:24,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:24,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:51:24,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336154219] [2023-11-29 05:51:24,734 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:24,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:51:24,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:24,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:51:24,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:51:24,735 INFO L87 Difference]: Start difference. First operand 907 states and 1140 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 05:51:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:25,793 INFO L93 Difference]: Finished difference Result 1063 states and 1337 transitions. [2023-11-29 05:51:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:51:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 131 [2023-11-29 05:51:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:25,796 INFO L225 Difference]: With dead ends: 1063 [2023-11-29 05:51:25,796 INFO L226 Difference]: Without dead ends: 1062 [2023-11-29 05:51:25,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:51:25,797 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 266 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:25,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 404 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:51:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-11-29 05:51:25,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 907. [2023-11-29 05:51:25,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.2007481296758105) internal successors, (963), 816 states have internal predecessors, (963), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 05:51:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1139 transitions. [2023-11-29 05:51:25,949 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1139 transitions. Word has length 131 [2023-11-29 05:51:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:25,949 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1139 transitions. [2023-11-29 05:51:25,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 05:51:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1139 transitions. [2023-11-29 05:51:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 05:51:25,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:25,950 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:25,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:26,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:26,151 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:26,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash 441109828, now seen corresponding path program 1 times [2023-11-29 05:51:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:26,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852076613] [2023-11-29 05:51:26,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:26,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:26,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:26,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481448867] [2023-11-29 05:51:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:26,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:26,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:26,161 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:26,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 05:51:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:26,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:51:26,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 05:51:26,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:27,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:27,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852076613] [2023-11-29 05:51:27,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:27,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481448867] [2023-11-29 05:51:27,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481448867] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:27,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:27,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:51:27,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452094528] [2023-11-29 05:51:27,339 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:27,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:51:27,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:27,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:51:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:51:27,341 INFO L87 Difference]: Start difference. First operand 907 states and 1139 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 05:51:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:28,624 INFO L93 Difference]: Finished difference Result 971 states and 1209 transitions. [2023-11-29 05:51:28,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:51:28,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 134 [2023-11-29 05:51:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:28,626 INFO L225 Difference]: With dead ends: 971 [2023-11-29 05:51:28,626 INFO L226 Difference]: Without dead ends: 970 [2023-11-29 05:51:28,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:51:28,627 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:28,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 458 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:51:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2023-11-29 05:51:28,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 907. [2023-11-29 05:51:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 802 states have (on average 1.199501246882793) internal successors, (962), 816 states have internal predecessors, (962), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 05:51:28,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1138 transitions. [2023-11-29 05:51:28,845 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1138 transitions. Word has length 134 [2023-11-29 05:51:28,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:28,845 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1138 transitions. [2023-11-29 05:51:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 05:51:28,846 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1138 transitions. [2023-11-29 05:51:28,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 05:51:28,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:28,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:28,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 05:51:29,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:29,048 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:29,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:29,049 INFO L85 PathProgramCache]: Analyzing trace with hash -338569035, now seen corresponding path program 1 times [2023-11-29 05:51:29,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:29,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318340266] [2023-11-29 05:51:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:29,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:29,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:29,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433024069] [2023-11-29 05:51:29,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:29,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:29,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:29,059 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:29,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 05:51:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:29,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:51:29,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:29,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:29,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:29,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318340266] [2023-11-29 05:51:29,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:29,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433024069] [2023-11-29 05:51:29,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433024069] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:29,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:29,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 05:51:29,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520000975] [2023-11-29 05:51:29,520 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:29,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:29,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:29,522 INFO L87 Difference]: Start difference. First operand 907 states and 1138 transitions. Second operand has 8 states, 7 states have (on average 23.714285714285715) internal successors, (166), 8 states have internal predecessors, (166), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 05:51:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:31,121 INFO L93 Difference]: Finished difference Result 1590 states and 1994 transitions. [2023-11-29 05:51:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:51:31,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.714285714285715) internal successors, (166), 8 states have internal predecessors, (166), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 146 [2023-11-29 05:51:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:31,124 INFO L225 Difference]: With dead ends: 1590 [2023-11-29 05:51:31,124 INFO L226 Difference]: Without dead ends: 1588 [2023-11-29 05:51:31,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:51:31,125 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 258 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:31,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 320 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:51:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2023-11-29 05:51:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1445. [2023-11-29 05:51:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1289 states have (on average 1.2242048099301783) internal successors, (1578), 1303 states have internal predecessors, (1578), 139 states have call successors, (139), 2 states have call predecessors, (139), 2 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 05:51:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1856 transitions. [2023-11-29 05:51:31,397 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1856 transitions. Word has length 146 [2023-11-29 05:51:31,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:31,398 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1856 transitions. [2023-11-29 05:51:31,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.714285714285715) internal successors, (166), 8 states have internal predecessors, (166), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 05:51:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1856 transitions. [2023-11-29 05:51:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 05:51:31,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:31,399 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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] [2023-11-29 05:51:31,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 05:51:31,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:31,600 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:31,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash 103330529, now seen corresponding path program 1 times [2023-11-29 05:51:31,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:31,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29323422] [2023-11-29 05:51:31,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:31,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:31,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:31,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342788328] [2023-11-29 05:51:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:31,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:31,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:31,610 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:31,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 05:51:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:31,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:51:31,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:31,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:32,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:32,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29323422] [2023-11-29 05:51:32,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342788328] [2023-11-29 05:51:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342788328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:51:32,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:51:32,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 05:51:32,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871832828] [2023-11-29 05:51:32,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:32,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:32,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:32,143 INFO L87 Difference]: Start difference. First operand 1445 states and 1856 transitions. Second operand has 8 states, 7 states have (on average 24.571428571428573) internal successors, (172), 8 states have internal predecessors, (172), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 05:51:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:33,982 INFO L93 Difference]: Finished difference Result 2066 states and 2608 transitions. [2023-11-29 05:51:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:51:33,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.571428571428573) internal successors, (172), 8 states have internal predecessors, (172), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 149 [2023-11-29 05:51:33,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:33,987 INFO L225 Difference]: With dead ends: 2066 [2023-11-29 05:51:33,988 INFO L226 Difference]: Without dead ends: 2064 [2023-11-29 05:51:33,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:51:33,989 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 214 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:33,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 387 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:51:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2023-11-29 05:51:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1898. [2023-11-29 05:51:34,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1703 states have (on average 1.2290076335877862) internal successors, (2093), 1717 states have internal predecessors, (2093), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2023-11-29 05:51:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2449 transitions. [2023-11-29 05:51:34,401 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2449 transitions. Word has length 149 [2023-11-29 05:51:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:34,401 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2449 transitions. [2023-11-29 05:51:34,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.571428571428573) internal successors, (172), 8 states have internal predecessors, (172), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2023-11-29 05:51:34,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2449 transitions. [2023-11-29 05:51:34,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 05:51:34,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:34,402 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:34,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 05:51:34,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 05:51:34,603 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:34,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1684355042, now seen corresponding path program 3 times [2023-11-29 05:51:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:34,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360886238] [2023-11-29 05:51:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:34,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:34,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074601843] [2023-11-29 05:51:34,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:51:34,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:34,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:34,613 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:34,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 05:51:34,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:51:34,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:34,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:51:34,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-29 05:51:34,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:35,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360886238] [2023-11-29 05:51:35,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:35,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074601843] [2023-11-29 05:51:35,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074601843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:35,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:35,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 05:51:35,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601868559] [2023-11-29 05:51:35,460 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:35,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:51:35,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:35,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:51:35,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:51:35,461 INFO L87 Difference]: Start difference. First operand 1898 states and 2449 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:51:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:35,955 INFO L93 Difference]: Finished difference Result 2049 states and 2637 transitions. [2023-11-29 05:51:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:51:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 152 [2023-11-29 05:51:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:35,958 INFO L225 Difference]: With dead ends: 2049 [2023-11-29 05:51:35,958 INFO L226 Difference]: Without dead ends: 2048 [2023-11-29 05:51:35,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:35,959 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 73 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:35,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 174 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:51:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2023-11-29 05:51:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2022. [2023-11-29 05:51:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2258953168044078) internal successors, (2225), 1829 states have internal predecessors, (2225), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2605 transitions. [2023-11-29 05:51:36,355 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2605 transitions. Word has length 152 [2023-11-29 05:51:36,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:36,355 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2605 transitions. [2023-11-29 05:51:36,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:51:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2605 transitions. [2023-11-29 05:51:36,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 05:51:36,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:36,356 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:36,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 05:51:36,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 05:51:36,557 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:36,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:36,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1764779618, now seen corresponding path program 4 times [2023-11-29 05:51:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:36,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515251431] [2023-11-29 05:51:36,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:36,566 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:36,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779671719] [2023-11-29 05:51:36,566 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:51:36,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:36,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:36,567 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:36,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 05:51:36,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:51:36,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:36,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:51:36,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 18 proven. 93 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 05:51:37,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:37,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:37,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515251431] [2023-11-29 05:51:37,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:37,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779671719] [2023-11-29 05:51:37,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779671719] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:37,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:37,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 05:51:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694069166] [2023-11-29 05:51:37,970 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:37,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:51:37,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:51:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:51:37,971 INFO L87 Difference]: Start difference. First operand 2022 states and 2605 transitions. Second operand has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 05:51:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:39,640 INFO L93 Difference]: Finished difference Result 2049 states and 2617 transitions. [2023-11-29 05:51:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:51:39,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 152 [2023-11-29 05:51:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:39,645 INFO L225 Difference]: With dead ends: 2049 [2023-11-29 05:51:39,645 INFO L226 Difference]: Without dead ends: 2047 [2023-11-29 05:51:39,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:51:39,646 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 101 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:39,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 483 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 05:51:39,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-11-29 05:51:40,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2022. [2023-11-29 05:51:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2236914600550963) internal successors, (2221), 1829 states have internal predecessors, (2221), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:40,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2601 transitions. [2023-11-29 05:51:40,039 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2601 transitions. Word has length 152 [2023-11-29 05:51:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:40,039 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2601 transitions. [2023-11-29 05:51:40,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.384615384615385) internal successors, (96), 14 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 05:51:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2601 transitions. [2023-11-29 05:51:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 05:51:40,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:40,040 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:40,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 05:51:40,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 05:51:40,240 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:40,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1562807070, now seen corresponding path program 5 times [2023-11-29 05:51:40,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:40,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857008919] [2023-11-29 05:51:40,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:40,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:40,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:40,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143053215] [2023-11-29 05:51:40,248 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:51:40,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:40,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:40,250 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:40,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 05:51:41,396 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 05:51:41,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:41,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:51:41,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:41,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857008919] [2023-11-29 05:51:41,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143053215] [2023-11-29 05:51:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143053215] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:41,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:41,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:51:41,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058647494] [2023-11-29 05:51:41,933 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:41,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:41,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:41,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:41,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:41,934 INFO L87 Difference]: Start difference. First operand 2022 states and 2601 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:42,816 INFO L93 Difference]: Finished difference Result 2053 states and 2626 transitions. [2023-11-29 05:51:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:51:42,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 152 [2023-11-29 05:51:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:42,820 INFO L225 Difference]: With dead ends: 2053 [2023-11-29 05:51:42,820 INFO L226 Difference]: Without dead ends: 2052 [2023-11-29 05:51:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:51:42,822 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 139 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:42,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 176 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:51:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2023-11-29 05:51:43,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 2022. [2023-11-29 05:51:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2231404958677685) internal successors, (2220), 1829 states have internal predecessors, (2220), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2600 transitions. [2023-11-29 05:51:43,225 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2600 transitions. Word has length 152 [2023-11-29 05:51:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:43,225 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2600 transitions. [2023-11-29 05:51:43,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2600 transitions. [2023-11-29 05:51:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 05:51:43,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:43,226 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:43,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:43,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:43,426 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:43,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:43,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2139095664, now seen corresponding path program 6 times [2023-11-29 05:51:43,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:43,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030901991] [2023-11-29 05:51:43,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:43,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:43,434 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:43,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743750316] [2023-11-29 05:51:43,435 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:51:43,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:43,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:43,436 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:43,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 05:51:43,596 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 05:51:43,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:43,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:51:43,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:44,127 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:44,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:44,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:44,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030901991] [2023-11-29 05:51:44,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:44,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743750316] [2023-11-29 05:51:44,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743750316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:44,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:44,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:51:44,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432566159] [2023-11-29 05:51:44,207 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:44,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:44,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:44,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:51:44,208 INFO L87 Difference]: Start difference. First operand 2022 states and 2600 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:44,928 INFO L93 Difference]: Finished difference Result 2038 states and 2612 transitions. [2023-11-29 05:51:44,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:51:44,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 152 [2023-11-29 05:51:44,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:44,932 INFO L225 Difference]: With dead ends: 2038 [2023-11-29 05:51:44,932 INFO L226 Difference]: Without dead ends: 2037 [2023-11-29 05:51:44,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:51:44,932 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 59 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:44,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 304 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:51:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2023-11-29 05:51:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 2022. [2023-11-29 05:51:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1815 states have (on average 1.2225895316804407) internal successors, (2219), 1829 states have internal predecessors, (2219), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2599 transitions. [2023-11-29 05:51:45,248 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2599 transitions. Word has length 152 [2023-11-29 05:51:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:45,249 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2599 transitions. [2023-11-29 05:51:45,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2599 transitions. [2023-11-29 05:51:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 05:51:45,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:45,250 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:45,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 05:51:45,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 05:51:45,450 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:45,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2075447056, now seen corresponding path program 7 times [2023-11-29 05:51:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:45,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463593931] [2023-11-29 05:51:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:45,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:45,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:45,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821889805] [2023-11-29 05:51:45,457 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 05:51:45,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:45,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:45,458 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:45,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 05:51:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:45,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:51:45,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:46,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:46,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:46,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463593931] [2023-11-29 05:51:46,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:46,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821889805] [2023-11-29 05:51:46,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821889805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:46,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:46,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:51:46,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073133796] [2023-11-29 05:51:46,119 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:46,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:46,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:46,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:46,119 INFO L87 Difference]: Start difference. First operand 2022 states and 2599 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:46,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:46,829 INFO L93 Difference]: Finished difference Result 2085 states and 2668 transitions. [2023-11-29 05:51:46,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:51:46,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 152 [2023-11-29 05:51:46,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:46,833 INFO L225 Difference]: With dead ends: 2085 [2023-11-29 05:51:46,833 INFO L226 Difference]: Without dead ends: 2084 [2023-11-29 05:51:46,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:51:46,834 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 142 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:46,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 186 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:51:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2023-11-29 05:51:47,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2027. [2023-11-29 05:51:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.221978021978022) internal successors, (2224), 1834 states have internal predecessors, (2224), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2604 transitions. [2023-11-29 05:51:47,178 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2604 transitions. Word has length 152 [2023-11-29 05:51:47,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:47,178 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2604 transitions. [2023-11-29 05:51:47,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 7 states have internal predecessors, (93), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:47,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2604 transitions. [2023-11-29 05:51:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 05:51:47,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:47,179 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:47,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:47,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 05:51:47,380 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:47,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash 558870720, now seen corresponding path program 3 times [2023-11-29 05:51:47,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:47,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208041373] [2023-11-29 05:51:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:47,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:47,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:47,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289223316] [2023-11-29 05:51:47,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:51:47,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:47,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:47,387 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:47,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 05:51:49,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:51:49,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:49,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:51:49,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:50,530 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:50,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:50,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208041373] [2023-11-29 05:51:50,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289223316] [2023-11-29 05:51:50,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289223316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:50,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:50,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:51:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120785355] [2023-11-29 05:51:50,721 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:50,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:51:50,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:51:50,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:51:50,722 INFO L87 Difference]: Start difference. First operand 2027 states and 2604 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:51,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:51,823 INFO L93 Difference]: Finished difference Result 2043 states and 2616 transitions. [2023-11-29 05:51:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:51:51,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 154 [2023-11-29 05:51:51,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:51,828 INFO L225 Difference]: With dead ends: 2043 [2023-11-29 05:51:51,828 INFO L226 Difference]: Without dead ends: 2042 [2023-11-29 05:51:51,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:51:51,829 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 81 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:51,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 458 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:51:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2023-11-29 05:51:52,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2027. [2023-11-29 05:51:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.2214285714285715) internal successors, (2223), 1834 states have internal predecessors, (2223), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:52,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2603 transitions. [2023-11-29 05:51:52,219 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2603 transitions. Word has length 154 [2023-11-29 05:51:52,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:52,219 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2603 transitions. [2023-11-29 05:51:52,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:52,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2603 transitions. [2023-11-29 05:51:52,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 05:51:52,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:52,221 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:52,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 05:51:52,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:52,421 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:52,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1380957632, now seen corresponding path program 4 times [2023-11-29 05:51:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:52,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583935261] [2023-11-29 05:51:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:52,431 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383235959] [2023-11-29 05:51:52,431 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:51:52,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:52,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:52,432 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:52,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 05:51:52,511 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:51:52,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:52,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:51:52,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:53,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:53,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583935261] [2023-11-29 05:51:53,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383235959] [2023-11-29 05:51:53,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383235959] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:53,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:53,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:51:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044546853] [2023-11-29 05:51:53,190 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:53,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:53,191 INFO L87 Difference]: Start difference. First operand 2027 states and 2603 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:54,084 INFO L93 Difference]: Finished difference Result 2057 states and 2628 transitions. [2023-11-29 05:51:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:51:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 154 [2023-11-29 05:51:54,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:54,089 INFO L225 Difference]: With dead ends: 2057 [2023-11-29 05:51:54,089 INFO L226 Difference]: Without dead ends: 2056 [2023-11-29 05:51:54,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:54,090 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 70 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:54,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 291 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:51:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2023-11-29 05:51:54,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2027. [2023-11-29 05:51:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.220879120879121) internal successors, (2222), 1834 states have internal predecessors, (2222), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2602 transitions. [2023-11-29 05:51:54,515 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2602 transitions. Word has length 154 [2023-11-29 05:51:54,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:54,515 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2602 transitions. [2023-11-29 05:51:54,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2602 transitions. [2023-11-29 05:51:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 05:51:54,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:54,517 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:54,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 05:51:54,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:54,718 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:54,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1618403378, now seen corresponding path program 5 times [2023-11-29 05:51:54,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:54,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784931364] [2023-11-29 05:51:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:54,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:54,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:54,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853277010] [2023-11-29 05:51:54,729 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:51:54,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:54,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:54,731 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:54,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 05:51:54,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 05:51:54,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:54,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:51:54,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:55,524 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 05:51:55,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:55,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:55,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784931364] [2023-11-29 05:51:55,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:55,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853277010] [2023-11-29 05:51:55,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853277010] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:55,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:55,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:51:55,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570310327] [2023-11-29 05:51:55,621 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:55,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:51:55,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:55,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:51:55,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:55,623 INFO L87 Difference]: Start difference. First operand 2027 states and 2602 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:56,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:56,695 INFO L93 Difference]: Finished difference Result 2042 states and 2614 transitions. [2023-11-29 05:51:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:51:56,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 154 [2023-11-29 05:51:56,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:56,698 INFO L225 Difference]: With dead ends: 2042 [2023-11-29 05:51:56,698 INFO L226 Difference]: Without dead ends: 2041 [2023-11-29 05:51:56,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:51:56,699 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 100 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:56,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 239 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:51:56,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2023-11-29 05:51:57,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2027. [2023-11-29 05:51:57,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.2203296703296704) internal successors, (2221), 1834 states have internal predecessors, (2221), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2601 transitions. [2023-11-29 05:51:57,132 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2601 transitions. Word has length 154 [2023-11-29 05:51:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:57,132 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2601 transitions. [2023-11-29 05:51:57,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 05:51:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2601 transitions. [2023-11-29 05:51:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 05:51:57,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:57,134 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:51:57,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 05:51:57,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2023-11-29 05:51:57,335 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:57,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1639797170, now seen corresponding path program 6 times [2023-11-29 05:51:57,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:57,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506789306] [2023-11-29 05:51:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:57,347 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:57,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996628764] [2023-11-29 05:51:57,347 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:51:57,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:57,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:57,349 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:57,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 05:51:57,746 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 05:51:57,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:51:57,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:51:57,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-11-29 05:51:58,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:58,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:58,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506789306] [2023-11-29 05:51:58,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:58,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996628764] [2023-11-29 05:51:58,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996628764] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:51:58,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:51:58,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 05:51:58,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203315871] [2023-11-29 05:51:58,300 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:51:58,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:51:58,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:51:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:51:58,301 INFO L87 Difference]: Start difference. First operand 2027 states and 2601 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:51:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:51:58,860 INFO L93 Difference]: Finished difference Result 2059 states and 2623 transitions. [2023-11-29 05:51:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:51:58,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 154 [2023-11-29 05:51:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:51:58,863 INFO L225 Difference]: With dead ends: 2059 [2023-11-29 05:51:58,863 INFO L226 Difference]: Without dead ends: 2058 [2023-11-29 05:51:58,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:51:58,863 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 76 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:51:58,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 196 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:51:58,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2023-11-29 05:51:59,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2027. [2023-11-29 05:51:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1820 states have (on average 1.2192307692307693) internal successors, (2219), 1834 states have internal predecessors, (2219), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 05:51:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2599 transitions. [2023-11-29 05:51:59,261 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2599 transitions. Word has length 154 [2023-11-29 05:51:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:51:59,261 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 2599 transitions. [2023-11-29 05:51:59,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:51:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2599 transitions. [2023-11-29 05:51:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 05:51:59,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:51:59,262 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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 05:51:59,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2023-11-29 05:51:59,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2023-11-29 05:51:59,463 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:51:59,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:51:59,463 INFO L85 PathProgramCache]: Analyzing trace with hash 804533707, now seen corresponding path program 1 times [2023-11-29 05:51:59,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:51:59,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873937258] [2023-11-29 05:51:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:59,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:51:59,471 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:51:59,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302273573] [2023-11-29 05:51:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:51:59,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:51:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:51:59,472 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:51:59,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 05:51:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:51:59,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:51:59,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:51:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-29 05:51:59,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:51:59,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:51:59,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873937258] [2023-11-29 05:51:59,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:51:59,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302273573] [2023-11-29 05:51:59,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302273573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:51:59,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:51:59,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:51:59,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796262278] [2023-11-29 05:51:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:51:59,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:51:59,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:51:59,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:51:59,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:51:59,672 INFO L87 Difference]: Start difference. First operand 2027 states and 2599 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 05:52:00,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:00,226 INFO L93 Difference]: Finished difference Result 2033 states and 2599 transitions. [2023-11-29 05:52:00,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:52:00,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 157 [2023-11-29 05:52:00,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:00,228 INFO L225 Difference]: With dead ends: 2033 [2023-11-29 05:52:00,228 INFO L226 Difference]: Without dead ends: 2021 [2023-11-29 05:52:00,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:52:00,229 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 82 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:00,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 240 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:52:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2023-11-29 05:52:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 2007. [2023-11-29 05:52:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2151968940654465) internal successors, (2191), 1816 states have internal predecessors, (2191), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 05:52:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2567 transitions. [2023-11-29 05:52:00,544 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2567 transitions. Word has length 157 [2023-11-29 05:52:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:00,544 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2567 transitions. [2023-11-29 05:52:00,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 05:52:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2567 transitions. [2023-11-29 05:52:00,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 05:52:00,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:00,546 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:00,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 05:52:00,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-11-29 05:52:00,747 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:00,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash 177535078, now seen corresponding path program 3 times [2023-11-29 05:52:00,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:00,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630840705] [2023-11-29 05:52:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:00,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:00,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:00,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532408897] [2023-11-29 05:52:00,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:52:00,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:00,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:00,758 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:00,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 05:52:00,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:52:00,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:00,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 05:52:00,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:52:01,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:01,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:01,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630840705] [2023-11-29 05:52:01,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:01,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532408897] [2023-11-29 05:52:01,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532408897] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:01,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:01,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:52:01,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040116073] [2023-11-29 05:52:01,872 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:01,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:52:01,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:52:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:52:01,873 INFO L87 Difference]: Start difference. First operand 2007 states and 2567 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:03,194 INFO L93 Difference]: Finished difference Result 2149 states and 2739 transitions. [2023-11-29 05:52:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:52:03,194 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2023-11-29 05:52:03,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:03,196 INFO L225 Difference]: With dead ends: 2149 [2023-11-29 05:52:03,196 INFO L226 Difference]: Without dead ends: 2148 [2023-11-29 05:52:03,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:52:03,197 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 270 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:03,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 437 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:52:03,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2023-11-29 05:52:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 2007. [2023-11-29 05:52:03,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2146422628951747) internal successors, (2190), 1816 states have internal predecessors, (2190), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 05:52:03,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2566 transitions. [2023-11-29 05:52:03,517 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2566 transitions. Word has length 162 [2023-11-29 05:52:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:03,517 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2566 transitions. [2023-11-29 05:52:03,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2566 transitions. [2023-11-29 05:52:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 05:52:03,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:03,518 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:03,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 05:52:03,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:03,719 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:03,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1788638680, now seen corresponding path program 2 times [2023-11-29 05:52:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245775448] [2023-11-29 05:52:03,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:03,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:03,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:03,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251870013] [2023-11-29 05:52:03,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:52:03,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:03,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:03,728 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:03,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 05:52:03,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:52:03,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:03,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:52:03,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 05:52:04,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:04,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:04,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245775448] [2023-11-29 05:52:04,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:04,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251870013] [2023-11-29 05:52:04,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251870013] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:04,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:04,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:52:04,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383502615] [2023-11-29 05:52:04,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:04,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:52:04,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:04,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:52:04,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:52:04,714 INFO L87 Difference]: Start difference. First operand 2007 states and 2566 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:05,908 INFO L93 Difference]: Finished difference Result 2054 states and 2615 transitions. [2023-11-29 05:52:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:52:05,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2023-11-29 05:52:05,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:05,911 INFO L225 Difference]: With dead ends: 2054 [2023-11-29 05:52:05,911 INFO L226 Difference]: Without dead ends: 2053 [2023-11-29 05:52:05,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:52:05,911 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 159 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:05,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 487 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:52:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2023-11-29 05:52:06,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2007. [2023-11-29 05:52:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.214087631724903) internal successors, (2189), 1816 states have internal predecessors, (2189), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 05:52:06,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2565 transitions. [2023-11-29 05:52:06,234 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2565 transitions. Word has length 162 [2023-11-29 05:52:06,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:06,234 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2565 transitions. [2023-11-29 05:52:06,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2565 transitions. [2023-11-29 05:52:06,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 05:52:06,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:06,235 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:06,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2023-11-29 05:52:06,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:06,436 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:06,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2081654616, now seen corresponding path program 3 times [2023-11-29 05:52:06,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:06,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808278601] [2023-11-29 05:52:06,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:06,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:06,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:06,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723796670] [2023-11-29 05:52:06,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:52:06,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:06,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:06,448 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:06,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 05:52:06,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:52:06,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:06,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:52:06,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 33 proven. 84 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:52:07,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:11,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:11,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808278601] [2023-11-29 05:52:11,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:11,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723796670] [2023-11-29 05:52:11,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723796670] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:11,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:11,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 05:52:11,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792751982] [2023-11-29 05:52:11,044 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:11,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:52:11,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:11,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:52:11,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=90, Unknown=1, NotChecked=0, Total=132 [2023-11-29 05:52:11,046 INFO L87 Difference]: Start difference. First operand 2007 states and 2565 transitions. Second operand has 10 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:11,956 INFO L93 Difference]: Finished difference Result 2334 states and 2972 transitions. [2023-11-29 05:52:11,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:52:11,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 162 [2023-11-29 05:52:11,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:11,959 INFO L225 Difference]: With dead ends: 2334 [2023-11-29 05:52:11,959 INFO L226 Difference]: Without dead ends: 2333 [2023-11-29 05:52:11,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=55, Invalid=126, Unknown=1, NotChecked=0, Total=182 [2023-11-29 05:52:11,960 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 223 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:11,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 276 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:52:11,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2023-11-29 05:52:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2007. [2023-11-29 05:52:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.211869107043816) internal successors, (2185), 1816 states have internal predecessors, (2185), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 05:52:12,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2561 transitions. [2023-11-29 05:52:12,281 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2561 transitions. Word has length 162 [2023-11-29 05:52:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:12,281 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2561 transitions. [2023-11-29 05:52:12,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2561 transitions. [2023-11-29 05:52:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 05:52:12,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:12,283 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:12,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 05:52:12,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:12,484 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:12,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1970705322, now seen corresponding path program 2 times [2023-11-29 05:52:12,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:12,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799809733] [2023-11-29 05:52:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:12,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:12,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271476563] [2023-11-29 05:52:12,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:52:12,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:12,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:12,494 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:12,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 05:52:12,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:52:12,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:12,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:52:12,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:13,351 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 05:52:13,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:13,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:13,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799809733] [2023-11-29 05:52:13,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:13,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271476563] [2023-11-29 05:52:13,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271476563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:13,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:13,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:52:13,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695503715] [2023-11-29 05:52:13,423 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:13,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:52:13,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:13,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:52:13,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:52:13,424 INFO L87 Difference]: Start difference. First operand 2007 states and 2561 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:14,294 INFO L93 Difference]: Finished difference Result 2050 states and 2607 transitions. [2023-11-29 05:52:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:52:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 165 [2023-11-29 05:52:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:14,296 INFO L225 Difference]: With dead ends: 2050 [2023-11-29 05:52:14,296 INFO L226 Difference]: Without dead ends: 2049 [2023-11-29 05:52:14,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:52:14,297 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 106 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:14,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 510 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:52:14,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2023-11-29 05:52:14,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2007. [2023-11-29 05:52:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2113144758735441) internal successors, (2184), 1816 states have internal predecessors, (2184), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 05:52:14,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2560 transitions. [2023-11-29 05:52:14,609 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2560 transitions. Word has length 165 [2023-11-29 05:52:14,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:14,609 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2560 transitions. [2023-11-29 05:52:14,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:14,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2560 transitions. [2023-11-29 05:52:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 05:52:14,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:14,610 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:14,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 05:52:14,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 05:52:14,811 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:14,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -460058070, now seen corresponding path program 3 times [2023-11-29 05:52:14,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:14,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256369195] [2023-11-29 05:52:14,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:14,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:14,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998636816] [2023-11-29 05:52:14,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:52:14,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:14,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:14,821 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:14,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 05:52:14,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:52:14,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:14,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:52:14,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 05:52:15,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:16,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:16,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256369195] [2023-11-29 05:52:16,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:16,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998636816] [2023-11-29 05:52:16,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998636816] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:16,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:52:16,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051431344] [2023-11-29 05:52:16,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:16,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:52:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:52:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:52:16,127 INFO L87 Difference]: Start difference. First operand 2007 states and 2560 transitions. Second operand has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:17,191 INFO L93 Difference]: Finished difference Result 2075 states and 2638 transitions. [2023-11-29 05:52:17,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:52:17,192 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 165 [2023-11-29 05:52:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:17,194 INFO L225 Difference]: With dead ends: 2075 [2023-11-29 05:52:17,194 INFO L226 Difference]: Without dead ends: 2074 [2023-11-29 05:52:17,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:52:17,195 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 150 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:17,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 564 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:52:17,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2023-11-29 05:52:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2007. [2023-11-29 05:52:17,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1803 states have (on average 1.2107598447032724) internal successors, (2183), 1816 states have internal predecessors, (2183), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-29 05:52:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2559 transitions. [2023-11-29 05:52:17,509 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2559 transitions. Word has length 165 [2023-11-29 05:52:17,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:17,509 INFO L495 AbstractCegarLoop]: Abstraction has 2007 states and 2559 transitions. [2023-11-29 05:52:17,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 05:52:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2559 transitions. [2023-11-29 05:52:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 05:52:17,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:17,510 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:17,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 05:52:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 05:52:17,711 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:17,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash -332183688, now seen corresponding path program 4 times [2023-11-29 05:52:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982136331] [2023-11-29 05:52:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:17,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037607440] [2023-11-29 05:52:17,720 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:52:17,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:17,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:17,721 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:17,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 05:52:17,793 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:52:17,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:17,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 05:52:17,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 05:52:18,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:18,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:18,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982136331] [2023-11-29 05:52:18,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:18,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037607440] [2023-11-29 05:52:18,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037607440] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:18,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:18,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:52:18,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683893837] [2023-11-29 05:52:18,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:18,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:52:18,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:18,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:52:18,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:52:18,714 INFO L87 Difference]: Start difference. First operand 2007 states and 2559 transitions. Second operand has 12 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-11-29 05:52:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:19,833 INFO L93 Difference]: Finished difference Result 2194 states and 2795 transitions. [2023-11-29 05:52:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:52:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 165 [2023-11-29 05:52:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:19,835 INFO L225 Difference]: With dead ends: 2194 [2023-11-29 05:52:19,835 INFO L226 Difference]: Without dead ends: 2193 [2023-11-29 05:52:19,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:52:19,836 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 259 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:19,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 413 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:52:19,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2023-11-29 05:52:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2016. [2023-11-29 05:52:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1811 states have (on average 1.209828823854224) internal successors, (2191), 1824 states have internal predecessors, (2191), 189 states have call successors, (189), 2 states have call predecessors, (189), 2 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2023-11-29 05:52:20,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2569 transitions. [2023-11-29 05:52:20,175 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2569 transitions. Word has length 165 [2023-11-29 05:52:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:20,175 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2569 transitions. [2023-11-29 05:52:20,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 7 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-11-29 05:52:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2569 transitions. [2023-11-29 05:52:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 05:52:20,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:20,176 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:20,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2023-11-29 05:52:20,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:20,377 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:20,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:20,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1376898212, now seen corresponding path program 2 times [2023-11-29 05:52:20,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:20,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81361771] [2023-11-29 05:52:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:20,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:20,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:20,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680931737] [2023-11-29 05:52:20,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:52:20,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:20,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:20,386 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:20,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 05:52:20,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:52:20,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:20,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:52:20,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 46 proven. 71 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 05:52:21,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:21,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:21,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81361771] [2023-11-29 05:52:21,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:21,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680931737] [2023-11-29 05:52:21,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680931737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:21,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:21,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:52:21,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522837764] [2023-11-29 05:52:21,312 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:21,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:52:21,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:21,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:52:21,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:52:21,313 INFO L87 Difference]: Start difference. First operand 2016 states and 2569 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 05:52:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:23,455 INFO L93 Difference]: Finished difference Result 2103 states and 2630 transitions. [2023-11-29 05:52:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 05:52:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 166 [2023-11-29 05:52:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:23,458 INFO L225 Difference]: With dead ends: 2103 [2023-11-29 05:52:23,458 INFO L226 Difference]: Without dead ends: 2085 [2023-11-29 05:52:23,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2023-11-29 05:52:23,459 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 251 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:23,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 535 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:52:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2023-11-29 05:52:23,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1891. [2023-11-29 05:52:23,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1698 states have (on average 1.1943462897526502) internal successors, (2028), 1711 states have internal predecessors, (2028), 177 states have call successors, (177), 2 states have call predecessors, (177), 2 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-11-29 05:52:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2382 transitions. [2023-11-29 05:52:23,775 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2382 transitions. Word has length 166 [2023-11-29 05:52:23,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:23,776 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 2382 transitions. [2023-11-29 05:52:23,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 05:52:23,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2382 transitions. [2023-11-29 05:52:23,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 05:52:23,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:23,777 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:23,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 05:52:23,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:23,978 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:23,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:23,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1707759666, now seen corresponding path program 3 times [2023-11-29 05:52:23,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:23,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78695110] [2023-11-29 05:52:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:23,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:23,989 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:23,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548647822] [2023-11-29 05:52:23,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:52:23,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:23,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:23,990 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:23,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 05:52:24,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:52:24,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:24,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:52:24,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-11-29 05:52:24,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:29,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78695110] [2023-11-29 05:52:29,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:29,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548647822] [2023-11-29 05:52:29,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548647822] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:29,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:29,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:52:29,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587716035] [2023-11-29 05:52:29,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:29,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:52:29,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:52:29,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=147, Unknown=1, NotChecked=0, Total=182 [2023-11-29 05:52:29,020 INFO L87 Difference]: Start difference. First operand 1891 states and 2382 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:52:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:30,167 INFO L93 Difference]: Finished difference Result 1994 states and 2501 transitions. [2023-11-29 05:52:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:52:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 166 [2023-11-29 05:52:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:30,170 INFO L225 Difference]: With dead ends: 1994 [2023-11-29 05:52:30,170 INFO L226 Difference]: Without dead ends: 1984 [2023-11-29 05:52:30,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=46, Invalid=193, Unknown=1, NotChecked=0, Total=240 [2023-11-29 05:52:30,170 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 66 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:30,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 254 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:52:30,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2023-11-29 05:52:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1891. [2023-11-29 05:52:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1698 states have (on average 1.1896348645465253) internal successors, (2020), 1711 states have internal predecessors, (2020), 177 states have call successors, (177), 2 states have call predecessors, (177), 2 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-11-29 05:52:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2374 transitions. [2023-11-29 05:52:30,481 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2374 transitions. Word has length 166 [2023-11-29 05:52:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:30,481 INFO L495 AbstractCegarLoop]: Abstraction has 1891 states and 2374 transitions. [2023-11-29 05:52:30,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:52:30,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2374 transitions. [2023-11-29 05:52:30,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 05:52:30,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:30,483 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:30,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 05:52:30,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:30,683 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:30,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:30,684 INFO L85 PathProgramCache]: Analyzing trace with hash -447501461, now seen corresponding path program 2 times [2023-11-29 05:52:30,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:30,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879122110] [2023-11-29 05:52:30,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:30,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:30,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:30,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128215444] [2023-11-29 05:52:30,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:52:30,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:30,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:30,694 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:30,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 05:52:30,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:52:30,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:30,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:52:30,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:31,723 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 05:52:31,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:52:35,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:52:35,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879122110] [2023-11-29 05:52:35,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:52:35,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128215444] [2023-11-29 05:52:35,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128215444] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:52:35,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:52:35,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:52:35,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387878802] [2023-11-29 05:52:35,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:52:35,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:52:35,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:52:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:52:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=174, Unknown=1, NotChecked=0, Total=240 [2023-11-29 05:52:35,891 INFO L87 Difference]: Start difference. First operand 1891 states and 2374 transitions. Second operand has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:52:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:52:37,205 INFO L93 Difference]: Finished difference Result 2060 states and 2578 transitions. [2023-11-29 05:52:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:52:37,205 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2023-11-29 05:52:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:52:37,207 INFO L225 Difference]: With dead ends: 2060 [2023-11-29 05:52:37,207 INFO L226 Difference]: Without dead ends: 2059 [2023-11-29 05:52:37,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=92, Invalid=249, Unknown=1, NotChecked=0, Total=342 [2023-11-29 05:52:37,208 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 106 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:52:37,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 509 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:52:37,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2023-11-29 05:52:37,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1902. [2023-11-29 05:52:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.1886350322202694) internal successors, (2029), 1720 states have internal predecessors, (2029), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 05:52:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2387 transitions. [2023-11-29 05:52:37,599 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2387 transitions. Word has length 173 [2023-11-29 05:52:37,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:52:37,599 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2387 transitions. [2023-11-29 05:52:37,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:52:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2387 transitions. [2023-11-29 05:52:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 05:52:37,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:52:37,601 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:37,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 05:52:37,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:37,802 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:52:37,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash 902279865, now seen corresponding path program 3 times [2023-11-29 05:52:37,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:37,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730274098] [2023-11-29 05:52:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:37,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:37,815 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:52:37,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452705496] [2023-11-29 05:52:37,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:52:37,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:52:37,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:37,817 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:52:37,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 05:52:37,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:52:37,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:52:37,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 05:52:37,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:52:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 30 proven. 114 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-29 05:52:44,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:11,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:11,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730274098] [2023-11-29 05:53:11,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:53:11,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452705496] [2023-11-29 05:53:11,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452705496] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:53:11,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:53:11,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 05:53:11,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056738091] [2023-11-29 05:53:11,529 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:11,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:53:11,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:11,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:53:11,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=336, Unknown=5, NotChecked=0, Total=420 [2023-11-29 05:53:11,531 INFO L87 Difference]: Start difference. First operand 1902 states and 2387 transitions. Second operand has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 7 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 05:53:15,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:18,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:23,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:30,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:34,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:38,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:43,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:46,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:53:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:46,947 INFO L93 Difference]: Finished difference Result 2079 states and 2590 transitions. [2023-11-29 05:53:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:53:46,947 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 7 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) Word has length 173 [2023-11-29 05:53:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:46,950 INFO L225 Difference]: With dead ends: 2079 [2023-11-29 05:53:46,950 INFO L226 Difference]: Without dead ends: 2078 [2023-11-29 05:53:46,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=99, Invalid=448, Unknown=5, NotChecked=0, Total=552 [2023-11-29 05:53:46,951 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 166 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:46,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 518 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1188 Invalid, 3 Unknown, 0 Unchecked, 33.8s Time] [2023-11-29 05:53:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2023-11-29 05:53:47,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1902. [2023-11-29 05:53:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.1874633860574106) internal successors, (2027), 1720 states have internal predecessors, (2027), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 05:53:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2385 transitions. [2023-11-29 05:53:47,313 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2385 transitions. Word has length 173 [2023-11-29 05:53:47,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:47,313 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2385 transitions. [2023-11-29 05:53:47,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.923076923076923) internal successors, (90), 13 states have internal predecessors, (90), 7 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-29 05:53:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2385 transitions. [2023-11-29 05:53:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 05:53:47,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:47,315 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:47,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 05:53:47,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:53:47,515 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:53:47,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:47,516 INFO L85 PathProgramCache]: Analyzing trace with hash 146714937, now seen corresponding path program 4 times [2023-11-29 05:53:47,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:47,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070936309] [2023-11-29 05:53:47,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:47,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:47,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:53:47,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702094034] [2023-11-29 05:53:47,523 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:53:47,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:53:47,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:47,524 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:53:47,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 05:53:47,632 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:53:47,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:47,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:53:47,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:53:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 05:53:48,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:53:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070936309] [2023-11-29 05:53:48,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:53:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702094034] [2023-11-29 05:53:48,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702094034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:53:48,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:53:48,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:53:48,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116463118] [2023-11-29 05:53:48,950 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:53:48,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:53:48,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:48,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:53:48,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:53:48,951 INFO L87 Difference]: Start difference. First operand 1902 states and 2385 transitions. Second operand has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:53:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:53:50,069 INFO L93 Difference]: Finished difference Result 2024 states and 2529 transitions. [2023-11-29 05:53:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:53:50,070 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 173 [2023-11-29 05:53:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:53:50,072 INFO L225 Difference]: With dead ends: 2024 [2023-11-29 05:53:50,072 INFO L226 Difference]: Without dead ends: 2023 [2023-11-29 05:53:50,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:53:50,073 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 139 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:53:50,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 471 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:53:50,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2023-11-29 05:53:50,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1902. [2023-11-29 05:53:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.1868775629759813) internal successors, (2026), 1720 states have internal predecessors, (2026), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 05:53:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2384 transitions. [2023-11-29 05:53:50,422 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2384 transitions. Word has length 173 [2023-11-29 05:53:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:53:50,422 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2384 transitions. [2023-11-29 05:53:50,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.916666666666666) internal successors, (107), 13 states have internal predecessors, (107), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:53:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2384 transitions. [2023-11-29 05:53:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 05:53:50,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:53:50,423 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:50,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2023-11-29 05:53:50,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:53:50,624 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:53:50,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1496496263, now seen corresponding path program 3 times [2023-11-29 05:53:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447679752] [2023-11-29 05:53:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:50,635 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:53:50,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884302058] [2023-11-29 05:53:50,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:53:50,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:53:50,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:53:50,637 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:53:50,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 05:53:50,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:53:50,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:53:50,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 05:53:50,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:54:01,728 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 37 proven. 75 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-11-29 05:54:01,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:54:03,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:54:03,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447679752] [2023-11-29 05:54:03,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:54:03,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884302058] [2023-11-29 05:54:03,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884302058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:54:03,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:54:03,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 05:54:03,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206904406] [2023-11-29 05:54:03,640 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:54:03,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:54:03,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:54:03,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:54:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=306, Unknown=2, NotChecked=0, Total=380 [2023-11-29 05:54:03,642 INFO L87 Difference]: Start difference. First operand 1902 states and 2384 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 05:54:11,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:15,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:19,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:24,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:28,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:32,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:36,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:37,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:41,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:43,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:47,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:51,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:54:55,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:00,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:04,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:08,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:12,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:21,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:22,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:32,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:37,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:38,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:50,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:54,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:55:58,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:02,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:14,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:16,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:20,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:25,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:29,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:33,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:37,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:41,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:45,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:50,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:52,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:56:56,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:00,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:04,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:08,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:12,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:16,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:20,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:21,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:25,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:31,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:35,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:37,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:41,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:50,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:57:58,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:58:02,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:58:06,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 05:58:08,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:08,097 INFO L93 Difference]: Finished difference Result 1956 states and 2442 transitions. [2023-11-29 05:58:08,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 05:58:08,098 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 173 [2023-11-29 05:58:08,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:08,100 INFO L225 Difference]: With dead ends: 1956 [2023-11-29 05:58:08,101 INFO L226 Difference]: Without dead ends: 1954 [2023-11-29 05:58:08,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=200, Invalid=664, Unknown=6, NotChecked=0, Total=870 [2023-11-29 05:58:08,101 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 214 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 14 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 203.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 203.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:08,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 307 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 528 Invalid, 45 Unknown, 0 Unchecked, 203.9s Time] [2023-11-29 05:58:08,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2023-11-29 05:58:08,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1902. [2023-11-29 05:58:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1707 states have (on average 1.185120093731693) internal successors, (2023), 1720 states have internal predecessors, (2023), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 05:58:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2381 transitions. [2023-11-29 05:58:08,519 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2381 transitions. Word has length 173 [2023-11-29 05:58:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:08,519 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2381 transitions. [2023-11-29 05:58:08,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 05:58:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2381 transitions. [2023-11-29 05:58:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 05:58:08,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:08,522 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:08,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 05:58:08,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2023-11-29 05:58:08,722 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:08,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 62538660, now seen corresponding path program 2 times [2023-11-29 05:58:08,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:08,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722927485] [2023-11-29 05:58:08,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:08,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:08,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:08,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030678526] [2023-11-29 05:58:08,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:58:08,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:08,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:08,734 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:08,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 05:58:08,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:58:08,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:08,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 05:58:08,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 05:58:09,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:10,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722927485] [2023-11-29 05:58:10,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030678526] [2023-11-29 05:58:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030678526] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:10,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:10,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:58:10,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536885279] [2023-11-29 05:58:10,233 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:10,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:58:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:10,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:58:10,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:58:10,234 INFO L87 Difference]: Start difference. First operand 1902 states and 2381 transitions. Second operand has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:58:12,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:12,230 INFO L93 Difference]: Finished difference Result 2068 states and 2582 transitions. [2023-11-29 05:58:12,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:58:12,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 176 [2023-11-29 05:58:12,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:12,233 INFO L225 Difference]: With dead ends: 2068 [2023-11-29 05:58:12,233 INFO L226 Difference]: Without dead ends: 2067 [2023-11-29 05:58:12,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:58:12,233 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 148 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:12,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 538 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:58:12,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2023-11-29 05:58:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 1905. [2023-11-29 05:58:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1710 states have (on average 1.184795321637427) internal successors, (2026), 1723 states have internal predecessors, (2026), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 05:58:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2384 transitions. [2023-11-29 05:58:12,642 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2384 transitions. Word has length 176 [2023-11-29 05:58:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:12,642 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2384 transitions. [2023-11-29 05:58:12,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 13 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:58:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2384 transitions. [2023-11-29 05:58:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 05:58:12,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:12,644 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:12,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:12,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-11-29 05:58:12,844 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:12,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1914196374, now seen corresponding path program 3 times [2023-11-29 05:58:12,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:12,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242275063] [2023-11-29 05:58:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:12,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:12,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:12,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259904547] [2023-11-29 05:58:12,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:58:12,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:12,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:12,855 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:12,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 05:58:12,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:58:12,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:12,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:58:12,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 6 proven. 141 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-29 05:58:14,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:14,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242275063] [2023-11-29 05:58:14,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259904547] [2023-11-29 05:58:14,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259904547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:14,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:14,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:58:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111784580] [2023-11-29 05:58:14,316 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:14,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:58:14,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:58:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:58:14,317 INFO L87 Difference]: Start difference. First operand 1905 states and 2384 transitions. Second operand has 11 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:58:15,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:15,553 INFO L93 Difference]: Finished difference Result 1984 states and 2476 transitions. [2023-11-29 05:58:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:58:15,554 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 176 [2023-11-29 05:58:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:15,563 INFO L225 Difference]: With dead ends: 1984 [2023-11-29 05:58:15,563 INFO L226 Difference]: Without dead ends: 1983 [2023-11-29 05:58:15,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:58:15,564 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 262 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:15,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 364 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:58:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2023-11-29 05:58:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1905. [2023-11-29 05:58:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1710 states have (on average 1.1842105263157894) internal successors, (2025), 1723 states have internal predecessors, (2025), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 05:58:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2383 transitions. [2023-11-29 05:58:15,974 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2383 transitions. Word has length 176 [2023-11-29 05:58:15,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:15,975 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 2383 transitions. [2023-11-29 05:58:15,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:58:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2383 transitions. [2023-11-29 05:58:15,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 05:58:15,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:15,977 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:15,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 05:58:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 05:58:16,177 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:16,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1491942634, now seen corresponding path program 4 times [2023-11-29 05:58:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340375433] [2023-11-29 05:58:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:16,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189021649] [2023-11-29 05:58:16,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:58:16,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:16,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:16,187 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:16,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 05:58:16,297 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:58:16,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:16,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:58:16,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-11-29 05:58:17,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 3 proven. 141 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 05:58:18,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:18,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340375433] [2023-11-29 05:58:18,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:18,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189021649] [2023-11-29 05:58:18,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189021649] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:18,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:18,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2023-11-29 05:58:18,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622609733] [2023-11-29 05:58:18,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:18,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:58:18,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:18,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:58:18,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:58:18,069 INFO L87 Difference]: Start difference. First operand 1905 states and 2383 transitions. Second operand has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 12 states have internal predecessors, (191), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 05:58:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:22,289 INFO L93 Difference]: Finished difference Result 2315 states and 2829 transitions. [2023-11-29 05:58:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:58:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 12 states have internal predecessors, (191), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 176 [2023-11-29 05:58:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:22,292 INFO L225 Difference]: With dead ends: 2315 [2023-11-29 05:58:22,292 INFO L226 Difference]: Without dead ends: 2313 [2023-11-29 05:58:22,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:58:22,293 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 669 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:22,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 817 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 05:58:22,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2023-11-29 05:58:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 2132. [2023-11-29 05:58:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1915 states have (on average 1.177023498694517) internal successors, (2254), 1928 states have internal predecessors, (2254), 201 states have call successors, (201), 2 states have call predecessors, (201), 2 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2023-11-29 05:58:22,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2656 transitions. [2023-11-29 05:58:22,791 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2656 transitions. Word has length 176 [2023-11-29 05:58:22,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:22,792 INFO L495 AbstractCegarLoop]: Abstraction has 2132 states and 2656 transitions. [2023-11-29 05:58:22,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 12 states have internal predecessors, (191), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 05:58:22,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2656 transitions. [2023-11-29 05:58:22,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 05:58:22,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:22,794 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:22,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 05:58:22,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:22,994 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:22,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:22,995 INFO L85 PathProgramCache]: Analyzing trace with hash 928752253, now seen corresponding path program 1 times [2023-11-29 05:58:22,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:22,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248190648] [2023-11-29 05:58:22,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:22,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:23,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:23,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773500451] [2023-11-29 05:58:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:23,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:23,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:23,007 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:23,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 05:58:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:23,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:58:23,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 50 proven. 102 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:23,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:23,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248190648] [2023-11-29 05:58:23,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773500451] [2023-11-29 05:58:23,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773500451] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:23,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:23,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 05:58:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334948378] [2023-11-29 05:58:23,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:23,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:58:23,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:23,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:58:23,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:58:23,822 INFO L87 Difference]: Start difference. First operand 2132 states and 2656 transitions. Second operand has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 05:58:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:25,286 INFO L93 Difference]: Finished difference Result 2697 states and 3329 transitions. [2023-11-29 05:58:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 05:58:25,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 187 [2023-11-29 05:58:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:25,290 INFO L225 Difference]: With dead ends: 2697 [2023-11-29 05:58:25,290 INFO L226 Difference]: Without dead ends: 2696 [2023-11-29 05:58:25,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=713, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 05:58:25,290 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 910 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:25,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 722 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:58:25,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2023-11-29 05:58:25,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2298. [2023-11-29 05:58:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 2064 states have (on average 1.1787790697674418) internal successors, (2433), 2077 states have internal predecessors, (2433), 218 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (218), 218 states have call predecessors, (218), 218 states have call successors, (218) [2023-11-29 05:58:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 2869 transitions. [2023-11-29 05:58:25,823 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 2869 transitions. Word has length 187 [2023-11-29 05:58:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:25,823 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 2869 transitions. [2023-11-29 05:58:25,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 05:58:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 2869 transitions. [2023-11-29 05:58:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 05:58:25,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:25,825 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:25,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 05:58:26,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:26,026 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:26,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1941362001, now seen corresponding path program 1 times [2023-11-29 05:58:26,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:26,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398366453] [2023-11-29 05:58:26,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:26,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:26,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:26,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651732710] [2023-11-29 05:58:26,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:26,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:26,038 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:26,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 05:58:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:26,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:58:26,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 106 proven. 48 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:26,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:26,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:26,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398366453] [2023-11-29 05:58:26,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:26,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651732710] [2023-11-29 05:58:26,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651732710] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:26,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:26,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 05:58:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346736655] [2023-11-29 05:58:26,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:26,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:58:26,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:26,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:58:26,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:58:26,786 INFO L87 Difference]: Start difference. First operand 2298 states and 2869 transitions. Second operand has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 05:58:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:28,391 INFO L93 Difference]: Finished difference Result 3036 states and 3795 transitions. [2023-11-29 05:58:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 05:58:28,392 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 187 [2023-11-29 05:58:28,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:28,395 INFO L225 Difference]: With dead ends: 3036 [2023-11-29 05:58:28,395 INFO L226 Difference]: Without dead ends: 3035 [2023-11-29 05:58:28,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=619, Unknown=0, NotChecked=0, Total=930 [2023-11-29 05:58:28,396 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 633 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:28,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 781 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:58:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2023-11-29 05:58:29,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 2852. [2023-11-29 05:58:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2564 states have (on average 1.1895475819032761) internal successors, (3050), 2577 states have internal predecessors, (3050), 272 states have call successors, (272), 2 states have call predecessors, (272), 2 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2023-11-29 05:58:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3594 transitions. [2023-11-29 05:58:29,155 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3594 transitions. Word has length 187 [2023-11-29 05:58:29,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:29,156 INFO L495 AbstractCegarLoop]: Abstraction has 2852 states and 3594 transitions. [2023-11-29 05:58:29,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 14 states have internal predecessors, (220), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 05:58:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3594 transitions. [2023-11-29 05:58:29,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 05:58:29,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:29,158 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:29,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 05:58:29,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:29,358 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:29,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:29,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1713321681, now seen corresponding path program 2 times [2023-11-29 05:58:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042348133] [2023-11-29 05:58:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:29,370 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:29,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568198773] [2023-11-29 05:58:29,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:58:29,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:29,371 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:29,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 05:58:29,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:58:29,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:29,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:58:29,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:29,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:29,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042348133] [2023-11-29 05:58:29,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568198773] [2023-11-29 05:58:29,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568198773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:29,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:29,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:58:29,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899597314] [2023-11-29 05:58:29,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:29,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:58:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:29,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:58:29,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:29,860 INFO L87 Difference]: Start difference. First operand 2852 states and 3594 transitions. Second operand has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:58:31,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:31,141 INFO L93 Difference]: Finished difference Result 3448 states and 4354 transitions. [2023-11-29 05:58:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:58:31,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 187 [2023-11-29 05:58:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:31,145 INFO L225 Difference]: With dead ends: 3448 [2023-11-29 05:58:31,146 INFO L226 Difference]: Without dead ends: 3447 [2023-11-29 05:58:31,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:58:31,146 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 179 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:31,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 406 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:58:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2023-11-29 05:58:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3002. [2023-11-29 05:58:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2699 states have (on average 1.1889588736569099) internal successors, (3209), 2712 states have internal predecessors, (3209), 287 states have call successors, (287), 2 states have call predecessors, (287), 2 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2023-11-29 05:58:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 3783 transitions. [2023-11-29 05:58:31,965 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 3783 transitions. Word has length 187 [2023-11-29 05:58:31,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:31,965 INFO L495 AbstractCegarLoop]: Abstraction has 3002 states and 3783 transitions. [2023-11-29 05:58:31,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:58:31,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 3783 transitions. [2023-11-29 05:58:31,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 05:58:31,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:31,967 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:31,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 05:58:32,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:32,168 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:32,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:32,168 INFO L85 PathProgramCache]: Analyzing trace with hash -971312833, now seen corresponding path program 1 times [2023-11-29 05:58:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:32,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238002108] [2023-11-29 05:58:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:32,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:32,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:32,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260551177] [2023-11-29 05:58:32,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:32,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:32,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:32,180 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:32,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 05:58:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:32,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:58:32,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:32,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:32,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238002108] [2023-11-29 05:58:32,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:32,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260551177] [2023-11-29 05:58:32,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260551177] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:32,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:32,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:58:32,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158817650] [2023-11-29 05:58:32,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:32,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:58:32,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:32,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:58:32,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:58:32,965 INFO L87 Difference]: Start difference. First operand 3002 states and 3783 transitions. Second operand has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 05:58:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:35,057 INFO L93 Difference]: Finished difference Result 4376 states and 5509 transitions. [2023-11-29 05:58:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:58:35,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 189 [2023-11-29 05:58:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:35,062 INFO L225 Difference]: With dead ends: 4376 [2023-11-29 05:58:35,062 INFO L226 Difference]: Without dead ends: 4374 [2023-11-29 05:58:35,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=123, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:58:35,063 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 226 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:35,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 414 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:58:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2023-11-29 05:58:36,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 3577. [2023-11-29 05:58:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 3222 states have (on average 1.185599006828057) internal successors, (3820), 3235 states have internal predecessors, (3820), 339 states have call successors, (339), 2 states have call predecessors, (339), 2 states have return successors, (339), 339 states have call predecessors, (339), 339 states have call successors, (339) [2023-11-29 05:58:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 4498 transitions. [2023-11-29 05:58:36,162 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 4498 transitions. Word has length 189 [2023-11-29 05:58:36,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:36,163 INFO L495 AbstractCegarLoop]: Abstraction has 3577 states and 4498 transitions. [2023-11-29 05:58:36,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 05:58:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 4498 transitions. [2023-11-29 05:58:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 05:58:36,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:36,165 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:36,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 05:58:36,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:36,366 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:36,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1464721613, now seen corresponding path program 1 times [2023-11-29 05:58:36,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:36,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237628801] [2023-11-29 05:58:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:36,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:36,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:36,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541397873] [2023-11-29 05:58:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:36,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:36,378 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 05:58:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:36,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:58:36,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:36,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:37,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:37,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237628801] [2023-11-29 05:58:37,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:37,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541397873] [2023-11-29 05:58:37,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541397873] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:58:37,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:37,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:58:37,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255509309] [2023-11-29 05:58:37,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:37,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:58:37,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:37,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:58:37,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:58:37,177 INFO L87 Difference]: Start difference. First operand 3577 states and 4498 transitions. Second operand has 10 states, 9 states have (on average 25.11111111111111) internal successors, (226), 10 states have internal predecessors, (226), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 05:58:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:39,167 INFO L93 Difference]: Finished difference Result 4118 states and 5124 transitions. [2023-11-29 05:58:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:58:39,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 25.11111111111111) internal successors, (226), 10 states have internal predecessors, (226), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) Word has length 191 [2023-11-29 05:58:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:39,172 INFO L225 Difference]: With dead ends: 4118 [2023-11-29 05:58:39,172 INFO L226 Difference]: Without dead ends: 4116 [2023-11-29 05:58:39,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=138, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:58:39,173 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 292 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:39,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 519 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:58:39,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4116 states. [2023-11-29 05:58:40,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4116 to 4005. [2023-11-29 05:58:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4005 states, 3611 states have (on average 1.180005538631958) internal successors, (4261), 3624 states have internal predecessors, (4261), 378 states have call successors, (378), 2 states have call predecessors, (378), 2 states have return successors, (378), 378 states have call predecessors, (378), 378 states have call successors, (378) [2023-11-29 05:58:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4005 states to 4005 states and 5017 transitions. [2023-11-29 05:58:40,344 INFO L78 Accepts]: Start accepts. Automaton has 4005 states and 5017 transitions. Word has length 191 [2023-11-29 05:58:40,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:40,344 INFO L495 AbstractCegarLoop]: Abstraction has 4005 states and 5017 transitions. [2023-11-29 05:58:40,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 25.11111111111111) internal successors, (226), 10 states have internal predecessors, (226), 9 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 9 states have call predecessors, (28), 9 states have call successors, (28) [2023-11-29 05:58:40,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4005 states and 5017 transitions. [2023-11-29 05:58:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 05:58:40,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:40,346 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:40,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:40,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2023-11-29 05:58:40,547 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:40,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:40,547 INFO L85 PathProgramCache]: Analyzing trace with hash 298396030, now seen corresponding path program 8 times [2023-11-29 05:58:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:40,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866541158] [2023-11-29 05:58:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:40,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:40,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44299176] [2023-11-29 05:58:40,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:58:40,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:40,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:40,563 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:40,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 05:58:40,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:58:40,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:40,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 05:58:40,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 05:58:41,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:41,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:41,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866541158] [2023-11-29 05:58:41,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:41,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44299176] [2023-11-29 05:58:41,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44299176] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:41,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:58:41,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:58:41,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881710533] [2023-11-29 05:58:41,885 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:41,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:58:41,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:41,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:58:41,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:58:41,886 INFO L87 Difference]: Start difference. First operand 4005 states and 5017 transitions. Second operand has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:58:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:43,603 INFO L93 Difference]: Finished difference Result 4030 states and 5042 transitions. [2023-11-29 05:58:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:58:43,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 194 [2023-11-29 05:58:43,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:43,609 INFO L225 Difference]: With dead ends: 4030 [2023-11-29 05:58:43,609 INFO L226 Difference]: Without dead ends: 4029 [2023-11-29 05:58:43,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:58:43,610 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 52 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:43,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 435 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:58:43,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2023-11-29 05:58:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 4005. [2023-11-29 05:58:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4005 states, 3611 states have (on average 1.1797286070340627) internal successors, (4260), 3624 states have internal predecessors, (4260), 378 states have call successors, (378), 2 states have call predecessors, (378), 2 states have return successors, (378), 378 states have call predecessors, (378), 378 states have call successors, (378) [2023-11-29 05:58:44,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4005 states to 4005 states and 5016 transitions. [2023-11-29 05:58:44,813 INFO L78 Accepts]: Start accepts. Automaton has 4005 states and 5016 transitions. Word has length 194 [2023-11-29 05:58:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:44,813 INFO L495 AbstractCegarLoop]: Abstraction has 4005 states and 5016 transitions. [2023-11-29 05:58:44,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.142857142857142) internal successors, (120), 8 states have internal predecessors, (120), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 05:58:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4005 states and 5016 transitions. [2023-11-29 05:58:44,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 05:58:44,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:44,815 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:44,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 05:58:45,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2023-11-29 05:58:45,016 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 05:58:45,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:45,016 INFO L85 PathProgramCache]: Analyzing trace with hash 891460592, now seen corresponding path program 9 times [2023-11-29 05:58:45,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:45,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951193112] [2023-11-29 05:58:45,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:45,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:45,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:45,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502052482] [2023-11-29 05:58:45,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:58:45,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:45,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:45,032 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:45,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5cf0fd7-51e9-4d08-94e5-1e162f279736/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 05:58:46,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 05:58:46,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:58:46,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-29 05:58:46,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 72 proven. 153 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 06:00:07,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:00:32,779 WARN L293 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:01:10,533 WARN L293 SmtUtils]: Spent 14.09s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:01:34,674 WARN L293 SmtUtils]: Spent 8.02s 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 06:02:47,692 WARN L293 SmtUtils]: Spent 9.36s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:03:03,797 WARN L293 SmtUtils]: Spent 6.35s 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 06:03:16,394 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:03:20,401 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~p~0#1|)) (.cse7 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~r~0#1|)) (.cse4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~s~0#1|)) (.cse5 (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~q~0#1|))) (let ((.cse0 (* |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~q~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~s~0#1|)) (.cse3 (+ .cse4 .cse5 |c_ULTIMATE.start_main_~b~0#1|)) (.cse2 (+ .cse6 .cse7))) (or (< (+ .cse0 (* 2 .cse1)) (+ (* (* |c_ULTIMATE.start_main_~s~0#1| |c_ULTIMATE.start_main_~q~0#1|) 2) 9223372036854775808 (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~r~0#1|))) (= .cse2 .cse3) (not (= (+ .cse0 1) .cse1)) (< |c_ULTIMATE.start_main_~a~0#1| (+ |c_ULTIMATE.start_main_~b~0#1| 1)) (not (= (+ .cse4 .cse5) |c_ULTIMATE.start_main_~b~0#1|)) (< .cse3 .cse2) (not (= (+ .cse4 .cse5 |c_ULTIMATE.start_main_~a~0#1|) (+ .cse6 .cse7 |c_ULTIMATE.start_main_~b~0#1|)))))) is different from true [2023-11-29 06:03:36,585 WARN L293 SmtUtils]: Spent 7.67s 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)