./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4cd3813e1162515d6dfe6f021a67e8bd41b689ea28e27900ea441d7fd3bbe5cc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:05:49,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:49,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:05:49,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:49,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:49,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:49,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:49,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:49,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:49,839 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:49,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:05:49,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:05:49,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:49,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:49,844 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:49,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:49,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:05:49,846 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:05:49,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:49,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:05:49,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:49,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:05:49,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:05:49,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:05:49,849 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:05:49,850 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:05:49,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:05:49,851 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:05:49,851 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:49,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:49,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:49,854 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:05:49,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:05:49,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:49,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:49,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:05:49,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:05:49,856 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:05:49,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:05:49,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:05:49,857 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:05:49,857 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:05:49,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:05:49,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:05:49,859 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_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cd3813e1162515d6dfe6f021a67e8bd41b689ea28e27900ea441d7fd3bbe5cc [2023-11-26 12:05:50,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:50,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:50,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:50,275 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:50,278 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:50,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c [2023-11-26 12:05:53,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:53,762 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:53,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound10.c [2023-11-26 12:05:53,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/data/6baeccc5d/0de0d41f9f56471ca5cf247dccdfa901/FLAGfac469c69 [2023-11-26 12:05:53,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/data/6baeccc5d/0de0d41f9f56471ca5cf247dccdfa901 [2023-11-26 12:05:53,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:53,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:53,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:53,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:53,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:53,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:53" (1/1) ... [2023-11-26 12:05:53,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d11d0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53, skipping insertion in model container [2023-11-26 12:05:53,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:53" (1/1) ... [2023-11-26 12:05:53,855 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:05:54,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:54,134 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:05:54,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:54,194 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:05:54,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54 WrapperNode [2023-11-26 12:05:54,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:54,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:54,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:05:54,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:05:54,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,269 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2023-11-26 12:05:54,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:54,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:05:54,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:05:54,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:05:54,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,316 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]. [2023-11-26 12:05:54,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:05:54,338 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:05:54,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:05:54,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:05:54,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (1/1) ... [2023-11-26 12:05:54,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:54,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:54,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:05:54,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:05:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:05:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:05:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:05:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:05:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:05:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:05:54,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 12:05:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 12:05:54,509 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:05:54,512 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:05:55,244 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:05:55,288 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:05:55,288 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:05:55,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:55 BoogieIcfgContainer [2023-11-26 12:05:55,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:05:55,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:05:55,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:05:55,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:05:55,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:53" (1/3) ... [2023-11-26 12:05:55,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf9ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:55, skipping insertion in model container [2023-11-26 12:05:55,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:54" (2/3) ... [2023-11-26 12:05:55,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf9ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:55, skipping insertion in model container [2023-11-26 12:05:55,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:55" (3/3) ... [2023-11-26 12:05:55,300 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound10.c [2023-11-26 12:05:55,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:05:55,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2023-11-26 12:05:55,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:05:55,423 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;@5085c9d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:05:55,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-11-26 12:05:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 95 states have (on average 1.936842105263158) internal successors, (184), 179 states have internal predecessors, (184), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:05:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 12:05:55,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:55,438 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:55,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:05:55,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:55,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1162004414, now seen corresponding path program 1 times [2023-11-26 12:05:55,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:55,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255556709] [2023-11-26 12:05:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:55,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:05:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:55,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 12:05:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:05:55,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255556709] [2023-11-26 12:05:55,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255556709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:55,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:55,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:55,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485254542] [2023-11-26 12:05:55,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:55,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:05:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:55,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:05:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:05:55,786 INFO L87 Difference]: Start difference. First operand has 187 states, 95 states have (on average 1.936842105263158) internal successors, (184), 179 states have internal predecessors, (184), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:05:55,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:55,874 INFO L93 Difference]: Finished difference Result 359 states and 390 transitions. [2023-11-26 12:05:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:05:55,878 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-26 12:05:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:55,892 INFO L225 Difference]: With dead ends: 359 [2023-11-26 12:05:55,892 INFO L226 Difference]: Without dead ends: 171 [2023-11-26 12:05:55,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:05:55,904 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:55,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:05:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-26 12:05:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-26 12:05:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 94 states have (on average 1.7553191489361701) internal successors, (165), 164 states have internal predecessors, (165), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:05:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 173 transitions. [2023-11-26 12:05:55,989 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 173 transitions. Word has length 14 [2023-11-26 12:05:55,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:55,990 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 173 transitions. [2023-11-26 12:05:55,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:05:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 173 transitions. [2023-11-26 12:05:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 12:05:55,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:55,993 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:55,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:05:55,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:05:55,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:55,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1920324093, now seen corresponding path program 1 times [2023-11-26 12:05:55,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:55,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831262754] [2023-11-26 12:05:55,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:55,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:05:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 12:05:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:05:56,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:56,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831262754] [2023-11-26 12:05:56,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831262754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:56,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:56,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294970479] [2023-11-26 12:05:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:56,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:56,191 INFO L87 Difference]: Start difference. First operand 171 states and 173 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:56,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:56,815 INFO L93 Difference]: Finished difference Result 316 states and 320 transitions. [2023-11-26 12:05:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:56,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-26 12:05:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:56,819 INFO L225 Difference]: With dead ends: 316 [2023-11-26 12:05:56,819 INFO L226 Difference]: Without dead ends: 260 [2023-11-26 12:05:56,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:56,822 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 90 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:56,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 124 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:05:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-26 12:05:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2023-11-26 12:05:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 168 states have (on average 1.505952380952381) internal successors, (253), 238 states have internal predecessors, (253), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:05:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 263 transitions. [2023-11-26 12:05:56,847 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 263 transitions. Word has length 14 [2023-11-26 12:05:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:56,849 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 263 transitions. [2023-11-26 12:05:56,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 263 transitions. [2023-11-26 12:05:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 12:05:56,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:56,851 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:56,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:05:56,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:05:56,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1713492121, now seen corresponding path program 1 times [2023-11-26 12:05:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:56,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432172728] [2023-11-26 12:05:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:56,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:05:56,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43224591] [2023-11-26 12:05:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:56,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:56,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:56,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:05:56,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:05:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:56,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:05:56,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:05:57,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:57,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:57,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432172728] [2023-11-26 12:05:57,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:05:57,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43224591] [2023-11-26 12:05:57,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43224591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:57,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:57,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:57,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648706345] [2023-11-26 12:05:57,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:57,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:57,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:57,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:57,188 INFO L87 Difference]: Start difference. First operand 246 states and 263 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:57,264 INFO L93 Difference]: Finished difference Result 246 states and 263 transitions. [2023-11-26 12:05:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:57,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2023-11-26 12:05:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:57,272 INFO L225 Difference]: With dead ends: 246 [2023-11-26 12:05:57,272 INFO L226 Difference]: Without dead ends: 243 [2023-11-26 12:05:57,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:57,279 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 124 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:57,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 156 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:05:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-26 12:05:57,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2023-11-26 12:05:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 168 states have (on average 1.4761904761904763) internal successors, (248), 235 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:05:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 258 transitions. [2023-11-26 12:05:57,325 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 258 transitions. Word has length 42 [2023-11-26 12:05:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:57,326 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 258 transitions. [2023-11-26 12:05:57,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:57,326 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 258 transitions. [2023-11-26 12:05:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-26 12:05:57,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:57,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:57,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:57,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:57,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:05:57,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1578648303, now seen corresponding path program 1 times [2023-11-26 12:05:57,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:57,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923381862] [2023-11-26 12:05:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:57,559 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:05:57,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645776569] [2023-11-26 12:05:57,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:57,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:57,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:57,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:05:57,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:05:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:57,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:05:57,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:05:57,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:57,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:57,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923381862] [2023-11-26 12:05:57,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:05:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645776569] [2023-11-26 12:05:57,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645776569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:57,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:57,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:57,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469715687] [2023-11-26 12:05:57,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:57,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:57,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:57,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:57,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:57,764 INFO L87 Difference]: Start difference. First operand 243 states and 258 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:57,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:57,886 INFO L93 Difference]: Finished difference Result 268 states and 271 transitions. [2023-11-26 12:05:57,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:57,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-26 12:05:57,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:57,890 INFO L225 Difference]: With dead ends: 268 [2023-11-26 12:05:57,890 INFO L226 Difference]: Without dead ends: 266 [2023-11-26 12:05:57,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:57,893 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 66 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:57,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 290 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:05:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-26 12:05:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 243. [2023-11-26 12:05:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 168 states have (on average 1.4642857142857142) internal successors, (246), 235 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:05:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 256 transitions. [2023-11-26 12:05:57,911 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 256 transitions. Word has length 43 [2023-11-26 12:05:57,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:57,912 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 256 transitions. [2023-11-26 12:05:57,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:57,912 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 256 transitions. [2023-11-26 12:05:57,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-26 12:05:57,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:57,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:57,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:58,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:58,124 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:05:58,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:58,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1693457243, now seen corresponding path program 1 times [2023-11-26 12:05:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:58,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683493775] [2023-11-26 12:05:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:58,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:58,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:05:58,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180993494] [2023-11-26 12:05:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:58,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:58,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:58,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:05:58,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:05:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:58,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:05:58,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:05:58,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:58,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:58,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683493775] [2023-11-26 12:05:58,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:05:58,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180993494] [2023-11-26 12:05:58,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180993494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:58,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:58,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:05:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634477976] [2023-11-26 12:05:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:58,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:58,422 INFO L87 Difference]: Start difference. First operand 243 states and 256 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:59,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:59,006 INFO L93 Difference]: Finished difference Result 266 states and 269 transitions. [2023-11-26 12:05:59,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:59,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2023-11-26 12:05:59,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:59,009 INFO L225 Difference]: With dead ends: 266 [2023-11-26 12:05:59,009 INFO L226 Difference]: Without dead ends: 261 [2023-11-26 12:05:59,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:59,011 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 86 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:59,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 248 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:05:59,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-26 12:05:59,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 246. [2023-11-26 12:05:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 171 states have (on average 1.4385964912280702) internal successors, (246), 238 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:05:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 256 transitions. [2023-11-26 12:05:59,023 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 256 transitions. Word has length 44 [2023-11-26 12:05:59,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:59,024 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 256 transitions. [2023-11-26 12:05:59,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:59,024 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 256 transitions. [2023-11-26 12:05:59,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-26 12:05:59,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:59,030 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:59,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:59,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:59,237 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:05:59,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:59,238 INFO L85 PathProgramCache]: Analyzing trace with hash 957567089, now seen corresponding path program 1 times [2023-11-26 12:05:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:05:59,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45229354] [2023-11-26 12:05:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:59,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:05:59,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:05:59,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401950444] [2023-11-26 12:05:59,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:59,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:05:59,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:59,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:05:59,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:05:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:59,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:05:59,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:59,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:05:59,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:59,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:05:59,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45229354] [2023-11-26 12:05:59,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:05:59,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401950444] [2023-11-26 12:05:59,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401950444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:59,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:59,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:05:59,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054157639] [2023-11-26 12:05:59,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:59,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:59,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:05:59,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:59,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:59,439 INFO L87 Difference]: Start difference. First operand 246 states and 256 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:59,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:59,771 INFO L93 Difference]: Finished difference Result 246 states and 256 transitions. [2023-11-26 12:05:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:59,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2023-11-26 12:05:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:59,773 INFO L225 Difference]: With dead ends: 246 [2023-11-26 12:05:59,773 INFO L226 Difference]: Without dead ends: 192 [2023-11-26 12:05:59,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:59,775 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 125 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:59,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 65 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:05:59,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-26 12:05:59,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-26 12:05:59,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 137 states have (on average 1.3722627737226278) internal successors, (188), 184 states have internal predecessors, (188), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:05:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 198 transitions. [2023-11-26 12:05:59,791 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 198 transitions. Word has length 45 [2023-11-26 12:05:59,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:59,791 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 198 transitions. [2023-11-26 12:05:59,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 198 transitions. [2023-11-26 12:05:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 12:05:59,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:59,799 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:59,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:00,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 12:06:00,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:00,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:00,007 INFO L85 PathProgramCache]: Analyzing trace with hash -280525862, now seen corresponding path program 1 times [2023-11-26 12:06:00,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:00,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155689709] [2023-11-26 12:06:00,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:00,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:00,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692267471] [2023-11-26 12:06:00,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:00,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:00,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:00,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:06:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:00,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:06:00,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:00,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:00,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:00,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155689709] [2023-11-26 12:06:00,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:00,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692267471] [2023-11-26 12:06:00,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692267471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:00,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:00,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:00,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127884439] [2023-11-26 12:06:00,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:00,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:00,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:00,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:00,164 INFO L87 Difference]: Start difference. First operand 192 states and 198 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:00,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:00,180 INFO L93 Difference]: Finished difference Result 192 states and 198 transitions. [2023-11-26 12:06:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2023-11-26 12:06:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:00,184 INFO L225 Difference]: With dead ends: 192 [2023-11-26 12:06:00,184 INFO L226 Difference]: Without dead ends: 191 [2023-11-26 12:06:00,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:00,186 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 96 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:00,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 155 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:00,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-26 12:06:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2023-11-26 12:06:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 137 states have (on average 1.3576642335766422) internal successors, (186), 183 states have internal predecessors, (186), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:06:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions. [2023-11-26 12:06:00,203 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 54 [2023-11-26 12:06:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:00,206 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 196 transitions. [2023-11-26 12:06:00,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions. [2023-11-26 12:06:00,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 12:06:00,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:00,208 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:00,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:00,415 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:00,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash -106367008, now seen corresponding path program 1 times [2023-11-26 12:06:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268591836] [2023-11-26 12:06:00,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:00,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:00,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923452997] [2023-11-26 12:06:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:00,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:00,443 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:00,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:06:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:00,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:06:00,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:00,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:00,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:00,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:00,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268591836] [2023-11-26 12:06:00,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:00,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923452997] [2023-11-26 12:06:00,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923452997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:00,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:00,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:00,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409173007] [2023-11-26 12:06:00,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:00,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:00,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:00,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:00,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:00,582 INFO L87 Difference]: Start difference. First operand 191 states and 196 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:00,607 INFO L93 Difference]: Finished difference Result 192 states and 196 transitions. [2023-11-26 12:06:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:00,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2023-11-26 12:06:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:00,611 INFO L225 Difference]: With dead ends: 192 [2023-11-26 12:06:00,612 INFO L226 Difference]: Without dead ends: 191 [2023-11-26 12:06:00,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:00,614 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:00,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-26 12:06:00,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2023-11-26 12:06:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 137 states have (on average 1.3503649635036497) internal successors, (185), 183 states have internal predecessors, (185), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 12:06:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 195 transitions. [2023-11-26 12:06:00,628 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 195 transitions. Word has length 55 [2023-11-26 12:06:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:00,630 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 195 transitions. [2023-11-26 12:06:00,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:00,630 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 195 transitions. [2023-11-26 12:06:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 12:06:00,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:00,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:00,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:00,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:00,840 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:00,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:00,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1964749084, now seen corresponding path program 1 times [2023-11-26 12:06:00,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:00,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089960940] [2023-11-26 12:06:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:00,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:00,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614557394] [2023-11-26 12:06:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:00,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:00,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:00,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:06:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:00,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:06:00,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:01,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:01,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:01,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089960940] [2023-11-26 12:06:01,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:01,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614557394] [2023-11-26 12:06:01,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614557394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:01,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:01,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:01,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316753296] [2023-11-26 12:06:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:01,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:06:01,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:01,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:06:01,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:06:01,078 INFO L87 Difference]: Start difference. First operand 191 states and 195 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:01,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:01,617 INFO L93 Difference]: Finished difference Result 322 states and 327 transitions. [2023-11-26 12:06:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:06:01,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-11-26 12:06:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:01,620 INFO L225 Difference]: With dead ends: 322 [2023-11-26 12:06:01,620 INFO L226 Difference]: Without dead ends: 284 [2023-11-26 12:06:01,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:06:01,621 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 94 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:01,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 123 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 12:06:01,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-26 12:06:01,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 273. [2023-11-26 12:06:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.262672811059908) internal successors, (274), 263 states have internal predecessors, (274), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:06:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 288 transitions. [2023-11-26 12:06:01,641 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 288 transitions. Word has length 59 [2023-11-26 12:06:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:01,641 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 288 transitions. [2023-11-26 12:06:01,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 288 transitions. [2023-11-26 12:06:01,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 12:06:01,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:01,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:01,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:01,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:01,852 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:01,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash -69304982, now seen corresponding path program 1 times [2023-11-26 12:06:01,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:01,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22777881] [2023-11-26 12:06:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:01,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:01,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349106176] [2023-11-26 12:06:01,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:01,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:01,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:01,866 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:01,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 12:06:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:01,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:06:01,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:02,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:02,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:02,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22777881] [2023-11-26 12:06:02,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:02,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349106176] [2023-11-26 12:06:02,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349106176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:02,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:02,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:06:02,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474261679] [2023-11-26 12:06:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:02,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:06:02,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:02,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:06:02,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:06:02,064 INFO L87 Difference]: Start difference. First operand 273 states and 288 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:02,380 INFO L93 Difference]: Finished difference Result 274 states and 288 transitions. [2023-11-26 12:06:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:06:02,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2023-11-26 12:06:02,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:02,383 INFO L225 Difference]: With dead ends: 274 [2023-11-26 12:06:02,383 INFO L226 Difference]: Without dead ends: 273 [2023-11-26 12:06:02,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:06:02,384 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 39 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:02,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 256 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:06:02,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-26 12:06:02,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-11-26 12:06:02,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.2580645161290323) internal successors, (273), 263 states have internal predecessors, (273), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:06:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 287 transitions. [2023-11-26 12:06:02,399 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 287 transitions. Word has length 65 [2023-11-26 12:06:02,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:02,400 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 287 transitions. [2023-11-26 12:06:02,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:02,400 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 287 transitions. [2023-11-26 12:06:02,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-26 12:06:02,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:02,402 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:02,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:02,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 12:06:02,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:02,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:02,609 INFO L85 PathProgramCache]: Analyzing trace with hash 809529056, now seen corresponding path program 1 times [2023-11-26 12:06:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:02,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864332835] [2023-11-26 12:06:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:02,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:02,626 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:02,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323346747] [2023-11-26 12:06:02,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:02,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:02,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:02,628 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:02,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 12:06:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:02,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:06:02,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:03,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:03,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:03,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864332835] [2023-11-26 12:06:03,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323346747] [2023-11-26 12:06:03,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323346747] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:03,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:06:03,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:06:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424473245] [2023-11-26 12:06:03,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:03,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:06:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:03,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:06:03,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:06:03,289 INFO L87 Difference]: Start difference. First operand 273 states and 287 transitions. Second operand has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 8 states have internal predecessors, (167), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 12:06:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:04,163 INFO L93 Difference]: Finished difference Result 343 states and 350 transitions. [2023-11-26 12:06:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:04,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 8 states have internal predecessors, (167), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 96 [2023-11-26 12:06:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:04,167 INFO L225 Difference]: With dead ends: 343 [2023-11-26 12:06:04,167 INFO L226 Difference]: Without dead ends: 340 [2023-11-26 12:06:04,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:04,169 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 293 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:04,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 263 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 12:06:04,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-26 12:06:04,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2023-11-26 12:06:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 257 states have (on average 1.2879377431906616) internal successors, (331), 302 states have internal predecessors, (331), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:06:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 345 transitions. [2023-11-26 12:06:04,191 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 345 transitions. Word has length 96 [2023-11-26 12:06:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:04,192 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 345 transitions. [2023-11-26 12:06:04,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 8 states have internal predecessors, (167), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 12:06:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 345 transitions. [2023-11-26 12:06:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-26 12:06:04,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:04,194 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:04,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:04,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:04,401 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:04,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash -674402934, now seen corresponding path program 1 times [2023-11-26 12:06:04,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:04,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10801464] [2023-11-26 12:06:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:04,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:04,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:04,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2067282938] [2023-11-26 12:06:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:04,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:04,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:04,422 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 12:06:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:04,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:06:04,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:06:04,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:05,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:05,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10801464] [2023-11-26 12:06:05,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:05,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067282938] [2023-11-26 12:06:05,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067282938] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:05,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:06:05,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-26 12:06:05,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621181518] [2023-11-26 12:06:05,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:05,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:05,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:05,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:05,968 INFO L87 Difference]: Start difference. First operand 312 states and 345 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:06,626 INFO L93 Difference]: Finished difference Result 323 states and 345 transitions. [2023-11-26 12:06:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:06:06,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2023-11-26 12:06:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:06,629 INFO L225 Difference]: With dead ends: 323 [2023-11-26 12:06:06,630 INFO L226 Difference]: Without dead ends: 318 [2023-11-26 12:06:06,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:06,631 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 133 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:06,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 115 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:06:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-26 12:06:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 312. [2023-11-26 12:06:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 257 states have (on average 1.2684824902723735) internal successors, (326), 302 states have internal predecessors, (326), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 12:06:06,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 340 transitions. [2023-11-26 12:06:06,647 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 340 transitions. Word has length 97 [2023-11-26 12:06:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:06,647 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 340 transitions. [2023-11-26 12:06:06,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:06:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 340 transitions. [2023-11-26 12:06:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 12:06:06,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:06,649 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:06,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:06,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 12:06:06,856 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:06,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:06,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1531036241, now seen corresponding path program 1 times [2023-11-26 12:06:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:06,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478542352] [2023-11-26 12:06:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:06,873 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:06,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340980863] [2023-11-26 12:06:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:06,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:06,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:06,876 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:06,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 12:06:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:06,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:06:06,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:07,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:07,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:07,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478542352] [2023-11-26 12:06:07,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:07,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340980863] [2023-11-26 12:06:07,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340980863] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:07,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:06:07,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 12:06:07,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191480617] [2023-11-26 12:06:07,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:07,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:07,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:07,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:07,307 INFO L87 Difference]: Start difference. First operand 312 states and 340 transitions. Second operand has 6 states, 5 states have (on average 36.2) internal successors, (181), 6 states have internal predecessors, (181), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:07,384 INFO L93 Difference]: Finished difference Result 536 states and 547 transitions. [2023-11-26 12:06:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:06:07,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 36.2) internal successors, (181), 6 states have internal predecessors, (181), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 108 [2023-11-26 12:06:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:07,390 INFO L225 Difference]: With dead ends: 536 [2023-11-26 12:06:07,390 INFO L226 Difference]: Without dead ends: 535 [2023-11-26 12:06:07,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:07,394 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 210 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:07,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 644 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-26 12:06:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 369. [2023-11-26 12:06:07,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 312 states have (on average 1.314102564102564) internal successors, (410), 357 states have internal predecessors, (410), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:06:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 428 transitions. [2023-11-26 12:06:07,417 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 428 transitions. Word has length 108 [2023-11-26 12:06:07,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:07,417 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 428 transitions. [2023-11-26 12:06:07,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 36.2) internal successors, (181), 6 states have internal predecessors, (181), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 428 transitions. [2023-11-26 12:06:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-26 12:06:07,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:07,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:07,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:07,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:07,625 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:07,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2059372331, now seen corresponding path program 1 times [2023-11-26 12:06:07,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:07,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60073986] [2023-11-26 12:06:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:07,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:07,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971232307] [2023-11-26 12:06:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:07,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:07,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:07,646 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:07,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 12:06:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:07,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:06:07,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:07,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:08,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60073986] [2023-11-26 12:06:08,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971232307] [2023-11-26 12:06:08,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971232307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:08,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:06:08,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:06:08,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478444196] [2023-11-26 12:06:08,153 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:08,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:06:08,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:08,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:06:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:06:08,156 INFO L87 Difference]: Start difference. First operand 369 states and 428 transitions. Second operand has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:08,988 INFO L93 Difference]: Finished difference Result 443 states and 486 transitions. [2023-11-26 12:06:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 112 [2023-11-26 12:06:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:08,992 INFO L225 Difference]: With dead ends: 443 [2023-11-26 12:06:08,992 INFO L226 Difference]: Without dead ends: 403 [2023-11-26 12:06:08,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:08,994 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 621 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:08,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 146 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 12:06:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-26 12:06:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 380. [2023-11-26 12:06:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 334 states have (on average 1.1826347305389222) internal successors, (395), 369 states have internal predecessors, (395), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 12:06:09,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 411 transitions. [2023-11-26 12:06:09,013 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 411 transitions. Word has length 112 [2023-11-26 12:06:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:09,013 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 411 transitions. [2023-11-26 12:06:09,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 12:06:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 411 transitions. [2023-11-26 12:06:09,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-26 12:06:09,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:09,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:09,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:09,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:09,225 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:09,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:09,226 INFO L85 PathProgramCache]: Analyzing trace with hash -351277160, now seen corresponding path program 1 times [2023-11-26 12:06:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673438004] [2023-11-26 12:06:09,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:09,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:09,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225180334] [2023-11-26 12:06:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:09,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:09,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:09,251 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:09,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 12:06:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:09,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:06:09,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:09,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:12,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:12,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673438004] [2023-11-26 12:06:12,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:12,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225180334] [2023-11-26 12:06:12,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225180334] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:12,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:06:12,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-26 12:06:12,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354392237] [2023-11-26 12:06:12,105 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:12,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:12,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:12,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:06:12,107 INFO L87 Difference]: Start difference. First operand 380 states and 411 transitions. Second operand has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 7 states have internal predecessors, (127), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 12:06:12,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:12,544 INFO L93 Difference]: Finished difference Result 386 states and 417 transitions. [2023-11-26 12:06:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:12,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 7 states have internal predecessors, (127), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 146 [2023-11-26 12:06:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:12,547 INFO L225 Difference]: With dead ends: 386 [2023-11-26 12:06:12,548 INFO L226 Difference]: Without dead ends: 385 [2023-11-26 12:06:12,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:06:12,549 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 97 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:12,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 312 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:06:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-11-26 12:06:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2023-11-26 12:06:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 336 states have (on average 1.181547619047619) internal successors, (397), 371 states have internal predecessors, (397), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:06:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 415 transitions. [2023-11-26 12:06:12,568 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 415 transitions. Word has length 146 [2023-11-26 12:06:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:12,568 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 415 transitions. [2023-11-26 12:06:12,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 7 states have internal predecessors, (127), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 12:06:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 415 transitions. [2023-11-26 12:06:12,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-26 12:06:12,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:12,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:12,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:12,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:12,776 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:12,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:12,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1995310146, now seen corresponding path program 1 times [2023-11-26 12:06:12,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:12,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484828000] [2023-11-26 12:06:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:12,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:12,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756851980] [2023-11-26 12:06:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:12,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:12,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:12,798 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:12,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 12:06:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:12,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:06:12,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:13,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:19,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:19,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484828000] [2023-11-26 12:06:19,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:19,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756851980] [2023-11-26 12:06:19,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756851980] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:19,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:06:19,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-26 12:06:19,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489093438] [2023-11-26 12:06:19,169 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:19,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:19,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:19,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:19,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=91, Unknown=1, NotChecked=0, Total=132 [2023-11-26 12:06:19,170 INFO L87 Difference]: Start difference. First operand 383 states and 415 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 12:06:19,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:19,575 INFO L93 Difference]: Finished difference Result 385 states and 416 transitions. [2023-11-26 12:06:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:19,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 147 [2023-11-26 12:06:19,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:19,578 INFO L225 Difference]: With dead ends: 385 [2023-11-26 12:06:19,578 INFO L226 Difference]: Without dead ends: 347 [2023-11-26 12:06:19,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=49, Invalid=106, Unknown=1, NotChecked=0, Total=156 [2023-11-26 12:06:19,579 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 94 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:19,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 305 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:06:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-26 12:06:19,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-26 12:06:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 301 states have (on average 1.1993355481727574) internal successors, (361), 336 states have internal predecessors, (361), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 12:06:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 377 transitions. [2023-11-26 12:06:19,601 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 377 transitions. Word has length 147 [2023-11-26 12:06:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:19,601 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 377 transitions. [2023-11-26 12:06:19,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 12:06:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 377 transitions. [2023-11-26 12:06:19,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-26 12:06:19,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:19,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:19,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:19,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:19,815 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:19,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1901356357, now seen corresponding path program 2 times [2023-11-26 12:06:19,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:19,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023336295] [2023-11-26 12:06:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:19,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:19,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:19,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368157450] [2023-11-26 12:06:19,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:06:19,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:19,828 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:19,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 12:06:20,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:06:20,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:06:20,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:06:20,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 12:06:20,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:20,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:20,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023336295] [2023-11-26 12:06:20,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:20,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368157450] [2023-11-26 12:06:20,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368157450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:20,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:20,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:06:20,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969329201] [2023-11-26 12:06:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:20,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:06:20,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:20,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:06:20,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:20,456 INFO L87 Difference]: Start difference. First operand 347 states and 377 transitions. Second operand has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 7 states have internal predecessors, (136), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 12:06:20,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:20,841 INFO L93 Difference]: Finished difference Result 347 states and 377 transitions. [2023-11-26 12:06:20,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:06:20,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 7 states have internal predecessors, (136), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 150 [2023-11-26 12:06:20,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:20,844 INFO L225 Difference]: With dead ends: 347 [2023-11-26 12:06:20,844 INFO L226 Difference]: Without dead ends: 330 [2023-11-26 12:06:20,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:06:20,846 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 118 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:20,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 98 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:06:20,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-26 12:06:20,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 327. [2023-11-26 12:06:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 298 states have (on average 1.1073825503355705) internal successors, (330), 316 states have internal predecessors, (330), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 12:06:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 346 transitions. [2023-11-26 12:06:20,865 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 346 transitions. Word has length 150 [2023-11-26 12:06:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:20,865 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 346 transitions. [2023-11-26 12:06:20,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 7 states have internal predecessors, (136), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 12:06:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 346 transitions. [2023-11-26 12:06:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-26 12:06:20,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:20,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:20,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:21,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:21,076 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:21,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1668062458, now seen corresponding path program 1 times [2023-11-26 12:06:21,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:21,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070792095] [2023-11-26 12:06:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:21,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:21,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:21,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647097852] [2023-11-26 12:06:21,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:21,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:21,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:21,095 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:21,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 12:06:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:21,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:06:21,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:21,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:21,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070792095] [2023-11-26 12:06:21,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:21,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647097852] [2023-11-26 12:06:21,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647097852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:06:21,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:06:21,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-26 12:06:21,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399437670] [2023-11-26 12:06:21,544 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:21,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:21,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:21,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:21,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:06:21,546 INFO L87 Difference]: Start difference. First operand 327 states and 346 transitions. Second operand has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 12:06:22,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:22,146 INFO L93 Difference]: Finished difference Result 399 states and 407 transitions. [2023-11-26 12:06:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:06:22,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 167 [2023-11-26 12:06:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:22,150 INFO L225 Difference]: With dead ends: 399 [2023-11-26 12:06:22,150 INFO L226 Difference]: Without dead ends: 396 [2023-11-26 12:06:22,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:06:22,151 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 122 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:22,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 106 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:06:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-26 12:06:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 327. [2023-11-26 12:06:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 298 states have (on average 1.0973154362416107) internal successors, (327), 316 states have internal predecessors, (327), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 12:06:22,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 343 transitions. [2023-11-26 12:06:22,168 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 343 transitions. Word has length 167 [2023-11-26 12:06:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:22,169 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 343 transitions. [2023-11-26 12:06:22,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 12:06:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 343 transitions. [2023-11-26 12:06:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-26 12:06:22,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:22,171 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:22,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-26 12:06:22,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:22,377 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:22,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:22,378 INFO L85 PathProgramCache]: Analyzing trace with hash -985216376, now seen corresponding path program 1 times [2023-11-26 12:06:22,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:22,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723995722] [2023-11-26 12:06:22,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:22,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:22,392 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552121517] [2023-11-26 12:06:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:22,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:22,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:22,394 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:22,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 12:06:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:06:22,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:22,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:23,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:23,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723995722] [2023-11-26 12:06:23,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:23,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552121517] [2023-11-26 12:06:23,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552121517] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:23,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:06:23,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-26 12:06:23,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761448064] [2023-11-26 12:06:23,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:23,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:06:23,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:06:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:06:23,321 INFO L87 Difference]: Start difference. First operand 327 states and 343 transitions. Second operand has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-26 12:06:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:24,168 INFO L93 Difference]: Finished difference Result 408 states and 427 transitions. [2023-11-26 12:06:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:06:24,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 169 [2023-11-26 12:06:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:24,171 INFO L225 Difference]: With dead ends: 408 [2023-11-26 12:06:24,171 INFO L226 Difference]: Without dead ends: 395 [2023-11-26 12:06:24,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:06:24,172 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 410 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:24,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 266 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 12:06:24,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-26 12:06:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 312. [2023-11-26 12:06:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 292 states have (on average 1.047945205479452) internal successors, (306), 301 states have internal predecessors, (306), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 12:06:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 322 transitions. [2023-11-26 12:06:24,190 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 322 transitions. Word has length 169 [2023-11-26 12:06:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:24,190 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 322 transitions. [2023-11-26 12:06:24,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-26 12:06:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 322 transitions. [2023-11-26 12:06:24,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-26 12:06:24,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:24,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:24,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:24,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:24,404 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:24,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:24,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1900127734, now seen corresponding path program 1 times [2023-11-26 12:06:24,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:24,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716985830] [2023-11-26 12:06:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:24,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696160187] [2023-11-26 12:06:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:24,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:24,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:24,418 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:24,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-26 12:06:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:24,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 12:06:24,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:25,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 12:06:25,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:25,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716985830] [2023-11-26 12:06:25,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696160187] [2023-11-26 12:06:25,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696160187] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:06:25,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:06:25,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-26 12:06:25,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135792510] [2023-11-26 12:06:25,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:06:25,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:06:25,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:25,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:06:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:06:25,779 INFO L87 Difference]: Start difference. First operand 312 states and 322 transitions. Second operand has 14 states, 13 states have (on average 22.846153846153847) internal successors, (297), 14 states have internal predecessors, (297), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-26 12:06:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:28,075 INFO L93 Difference]: Finished difference Result 574 states and 589 transitions. [2023-11-26 12:06:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 12:06:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 22.846153846153847) internal successors, (297), 14 states have internal predecessors, (297), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 171 [2023-11-26 12:06:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:28,079 INFO L225 Difference]: With dead ends: 574 [2023-11-26 12:06:28,080 INFO L226 Difference]: Without dead ends: 573 [2023-11-26 12:06:28,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=179, Unknown=0, NotChecked=0, Total=306 [2023-11-26 12:06:28,081 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 511 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:28,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 195 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-26 12:06:28,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-26 12:06:28,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 420. [2023-11-26 12:06:28,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 398 states have (on average 1.0628140703517588) internal successors, (423), 407 states have internal predecessors, (423), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 12:06:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 443 transitions. [2023-11-26 12:06:28,114 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 443 transitions. Word has length 171 [2023-11-26 12:06:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:28,114 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 443 transitions. [2023-11-26 12:06:28,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 22.846153846153847) internal successors, (297), 14 states have internal predecessors, (297), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-26 12:06:28,115 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 443 transitions. [2023-11-26 12:06:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-26 12:06:28,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:28,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:28,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:28,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:28,330 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:28,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash 396242567, now seen corresponding path program 2 times [2023-11-26 12:06:28,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:28,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349006753] [2023-11-26 12:06:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:28,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:28,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991918931] [2023-11-26 12:06:28,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:06:28,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:28,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:28,345 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:28,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-26 12:06:28,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 12:06:28,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:06:28,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:06:28,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-26 12:06:29,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:06:29,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:29,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349006753] [2023-11-26 12:06:29,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:06:29,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991918931] [2023-11-26 12:06:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991918931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:29,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:29,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:06:29,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412711029] [2023-11-26 12:06:29,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:29,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:06:29,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:06:29,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:06:29,581 INFO L87 Difference]: Start difference. First operand 420 states and 443 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:29,747 INFO L93 Difference]: Finished difference Result 420 states and 443 transitions. [2023-11-26 12:06:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:06:29,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 199 [2023-11-26 12:06:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:29,751 INFO L225 Difference]: With dead ends: 420 [2023-11-26 12:06:29,751 INFO L226 Difference]: Without dead ends: 381 [2023-11-26 12:06:29,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:06:29,753 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 61 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:29,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 44 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:06:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-26 12:06:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2023-11-26 12:06:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 362 states have (on average 1.058011049723757) internal successors, (383), 369 states have internal predecessors, (383), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:06:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 401 transitions. [2023-11-26 12:06:29,784 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 401 transitions. Word has length 199 [2023-11-26 12:06:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:29,785 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 401 transitions. [2023-11-26 12:06:29,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 12:06:29,785 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 401 transitions. [2023-11-26 12:06:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-26 12:06:29,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:29,788 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:29,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:29,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-26 12:06:29,993 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-26 12:06:29,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1769144768, now seen corresponding path program 2 times [2023-11-26 12:06:29,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:29,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691009531] [2023-11-26 12:06:29,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:29,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:30,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:30,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349634551] [2023-11-26 12:06:30,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:06:30,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:30,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:30,010 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:30,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84504842-d906-407c-b942-c993ec2833b1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-26 12:06:30,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:06:30,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:06:30,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 12:06:30,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:06:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 240 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 12:06:30,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:06:38,807 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse0 .cse1 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 307445734561825860) (not (= (mod (+ .cse0 .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) is different from false [2023-11-26 12:06:46,884 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)