/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:38:53,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:38:53,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:38:53,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 01:38:53,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:38:53,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:38:53,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:38:53,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:38:53,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:38:53,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:38:53,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:38:53,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:38:53,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:38:53,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:38:53,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:38:53,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:38:53,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 01:38:53,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 01:38:53,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 01:38:53,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 01:38:53,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 01:38:53,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 01:38:53,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 01:38:53,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 01:38:53,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 01:38:53,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:38:53,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:38:53,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:38:53,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 01:38:53,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:38:53,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:38:53,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:38:53,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:38:53,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:38:53,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:38:53,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:38:53,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:38:53,525 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:38:53,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:38:53,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:38:53,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:38:53,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:38:53,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:38:53,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:38:53,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:38:53,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:38:53,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:38:53,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:38:53,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:38:53,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:38:53,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:38:53,700 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:38:53,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-01-18 01:38:53,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/890da44fd/817e7a34403a4c80992d5a3856a6044f/FLAG39047bbde [2022-01-18 01:38:54,072 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:38:54,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2022-01-18 01:38:54,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/890da44fd/817e7a34403a4c80992d5a3856a6044f/FLAG39047bbde [2022-01-18 01:38:54,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/890da44fd/817e7a34403a4c80992d5a3856a6044f [2022-01-18 01:38:54,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:38:54,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:38:54,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:38:54,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:38:54,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:38:54,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a0c7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54, skipping insertion in model container [2022-01-18 01:38:54,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:38:54,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:38:54,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-01-18 01:38:54,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:38:54,270 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:38:54,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2022-01-18 01:38:54,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:38:54,313 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:38:54,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54 WrapperNode [2022-01-18 01:38:54,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:38:54,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:38:54,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:38:54,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:38:54,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,355 INFO L137 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 315 [2022-01-18 01:38:54,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:38:54,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:38:54,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:38:54,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:38:54,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:38:54,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:38:54,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:38:54,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:38:54,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (1/1) ... [2022-01-18 01:38:54,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:38:54,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:38:54,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 01:38:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:38:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:38:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:38:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:38:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:38:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:38:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:38:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:38:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 01:38:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 01:38:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:38:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:38:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:38:54,434 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 01:38:54,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 01:38:54,508 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:38:54,509 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:38:54,817 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:38:54,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:38:54,960 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-18 01:38:54,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:38:54 BoogieIcfgContainer [2022-01-18 01:38:54,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:38:54,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:38:54,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:38:54,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:38:54,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:38:54" (1/3) ... [2022-01-18 01:38:54,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cef276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:38:54, skipping insertion in model container [2022-01-18 01:38:54,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:38:54" (2/3) ... [2022-01-18 01:38:54,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cef276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:38:54, skipping insertion in model container [2022-01-18 01:38:54,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:38:54" (3/3) ... [2022-01-18 01:38:54,974 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2022-01-18 01:38:54,978 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:38:54,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:38:54,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:38:54,979 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:38:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,038 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,039 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,040 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,041 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,041 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,053 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,054 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,055 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,057 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,057 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,057 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,057 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,057 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,057 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,058 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,061 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,064 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,064 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,064 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,065 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,066 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,067 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,068 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:38:55,070 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 01:38:55,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:38:55,100 INFO L339 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 01:38:55,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 01:38:55,110 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 239 places, 245 transitions, 522 flow [2022-01-18 01:38:55,530 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13350 states, 13349 states have (on average 4.983744100681699) internal successors, (66528), 13349 states have internal predecessors, (66528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 13350 states, 13349 states have (on average 4.983744100681699) internal successors, (66528), 13349 states have internal predecessors, (66528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:55,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 01:38:55,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:38:55,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:38:55,739 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:38:55,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:38:55,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1272815159, now seen corresponding path program 1 times [2022-01-18 01:38:55,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:38:55,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547266661] [2022-01-18 01:38:55,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:38:55,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:38:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:38:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:38:55,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:38:55,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547266661] [2022-01-18 01:38:55,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547266661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:38:55,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:38:55,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 01:38:55,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424730038] [2022-01-18 01:38:55,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:38:55,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 01:38:55,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:38:56,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 01:38:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:38:56,090 INFO L87 Difference]: Start difference. First operand has 13350 states, 13349 states have (on average 4.983744100681699) internal successors, (66528), 13349 states have internal predecessors, (66528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:38:56,394 INFO L93 Difference]: Finished difference Result 13350 states and 59573 transitions. [2022-01-18 01:38:56,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 01:38:56,397 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-01-18 01:38:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:38:56,543 INFO L225 Difference]: With dead ends: 13350 [2022-01-18 01:38:56,543 INFO L226 Difference]: Without dead ends: 13343 [2022-01-18 01:38:56,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:38:56,576 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:38:56,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:38:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13343 states. [2022-01-18 01:38:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13343 to 13343. [2022-01-18 01:38:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13343 states, 13342 states have (on average 4.464548043771549) internal successors, (59566), 13342 states have internal predecessors, (59566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13343 states to 13343 states and 59566 transitions. [2022-01-18 01:38:57,133 INFO L78 Accepts]: Start accepts. Automaton has 13343 states and 59566 transitions. Word has length 182 [2022-01-18 01:38:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:38:57,135 INFO L470 AbstractCegarLoop]: Abstraction has 13343 states and 59566 transitions. [2022-01-18 01:38:57,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 13343 states and 59566 transitions. [2022-01-18 01:38:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-18 01:38:57,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:38:57,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:38:57,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:38:57,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:38:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:38:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1881360903, now seen corresponding path program 1 times [2022-01-18 01:38:57,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:38:57,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856340155] [2022-01-18 01:38:57,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:38:57,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:38:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:38:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:38:57,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:38:57,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856340155] [2022-01-18 01:38:57,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856340155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:38:57,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:38:57,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:38:57,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546652446] [2022-01-18 01:38:57,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:38:57,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:38:57,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:38:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:38:57,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:38:57,778 INFO L87 Difference]: Start difference. First operand 13343 states and 59566 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:58,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:38:58,143 INFO L93 Difference]: Finished difference Result 16771 states and 75228 transitions. [2022-01-18 01:38:58,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:38:58,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-01-18 01:38:58,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:38:58,243 INFO L225 Difference]: With dead ends: 16771 [2022-01-18 01:38:58,244 INFO L226 Difference]: Without dead ends: 16771 [2022-01-18 01:38:58,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:38:58,245 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 273 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:38:58,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1046 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:38:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16771 states. [2022-01-18 01:38:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16771 to 15057. [2022-01-18 01:38:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15057 states, 15056 states have (on average 4.476421360255048) internal successors, (67397), 15056 states have internal predecessors, (67397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:59,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15057 states to 15057 states and 67397 transitions. [2022-01-18 01:38:59,147 INFO L78 Accepts]: Start accepts. Automaton has 15057 states and 67397 transitions. Word has length 182 [2022-01-18 01:38:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:38:59,148 INFO L470 AbstractCegarLoop]: Abstraction has 15057 states and 67397 transitions. [2022-01-18 01:38:59,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 15057 states and 67397 transitions. [2022-01-18 01:38:59,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-01-18 01:38:59,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:38:59,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:38:59,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:38:59,216 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:38:59,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:38:59,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1998083910, now seen corresponding path program 1 times [2022-01-18 01:38:59,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:38:59,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436875810] [2022-01-18 01:38:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:38:59,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:38:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:38:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:38:59,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:38:59,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436875810] [2022-01-18 01:38:59,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436875810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:38:59,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:38:59,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 01:38:59,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658169745] [2022-01-18 01:38:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:38:59,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:38:59,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:38:59,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:38:59,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:38:59,320 INFO L87 Difference]: Start difference. First operand 15057 states and 67397 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:38:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:38:59,746 INFO L93 Difference]: Finished difference Result 19545 states and 85465 transitions. [2022-01-18 01:38:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:38:59,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2022-01-18 01:38:59,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:38:59,838 INFO L225 Difference]: With dead ends: 19545 [2022-01-18 01:38:59,838 INFO L226 Difference]: Without dead ends: 15063 [2022-01-18 01:38:59,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:38:59,839 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 151 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:38:59,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 823 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:38:59,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15063 states. [2022-01-18 01:39:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15063 to 15058. [2022-01-18 01:39:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15058 states, 15057 states have (on average 4.476190476190476) internal successors, (67398), 15057 states have internal predecessors, (67398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:00,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15058 states to 15058 states and 67398 transitions. [2022-01-18 01:39:00,358 INFO L78 Accepts]: Start accepts. Automaton has 15058 states and 67398 transitions. Word has length 185 [2022-01-18 01:39:00,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:00,359 INFO L470 AbstractCegarLoop]: Abstraction has 15058 states and 67398 transitions. [2022-01-18 01:39:00,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 15058 states and 67398 transitions. [2022-01-18 01:39:00,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:00,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:00,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:00,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:39:00,504 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2090838805, now seen corresponding path program 1 times [2022-01-18 01:39:00,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:00,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827278982] [2022-01-18 01:39:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:00,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:00,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:00,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827278982] [2022-01-18 01:39:00,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827278982] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:39:00,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009267103] [2022-01-18 01:39:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:00,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:00,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:39:00,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:39:00,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 01:39:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:00,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 01:39:00,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:39:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:01,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:39:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:01,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009267103] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 01:39:01,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 01:39:01,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 10] total 21 [2022-01-18 01:39:01,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996077467] [2022-01-18 01:39:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:01,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:39:01,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:39:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:39:01,653 INFO L87 Difference]: Start difference. First operand 15058 states and 67398 transitions. Second operand has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 9 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:02,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:02,302 INFO L93 Difference]: Finished difference Result 28926 states and 130391 transitions. [2022-01-18 01:39:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:39:02,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 9 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:02,454 INFO L225 Difference]: With dead ends: 28926 [2022-01-18 01:39:02,455 INFO L226 Difference]: Without dead ends: 28926 [2022-01-18 01:39:02,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 369 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2022-01-18 01:39:02,456 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 529 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:02,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1209 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:39:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28926 states. [2022-01-18 01:39:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28926 to 18536. [2022-01-18 01:39:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18536 states, 18535 states have (on average 4.484758564877259) internal successors, (83125), 18535 states have internal predecessors, (83125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18536 states to 18536 states and 83125 transitions. [2022-01-18 01:39:03,339 INFO L78 Accepts]: Start accepts. Automaton has 18536 states and 83125 transitions. Word has length 192 [2022-01-18 01:39:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:03,340 INFO L470 AbstractCegarLoop]: Abstraction has 18536 states and 83125 transitions. [2022-01-18 01:39:03,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 9 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 18536 states and 83125 transitions. [2022-01-18 01:39:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:03,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:03,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:03,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 01:39:03,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:03,600 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:03,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash 863321777, now seen corresponding path program 2 times [2022-01-18 01:39:03,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:03,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483359946] [2022-01-18 01:39:03,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:03,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:03,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:03,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483359946] [2022-01-18 01:39:03,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483359946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:03,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:03,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:03,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062299408] [2022-01-18 01:39:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:03,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:03,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:03,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:03,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:03,693 INFO L87 Difference]: Start difference. First operand 18536 states and 83125 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:04,046 INFO L93 Difference]: Finished difference Result 26516 states and 119350 transitions. [2022-01-18 01:39:04,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:39:04,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:04,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:04,458 INFO L225 Difference]: With dead ends: 26516 [2022-01-18 01:39:04,459 INFO L226 Difference]: Without dead ends: 26516 [2022-01-18 01:39:04,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 01:39:04,461 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 155 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:04,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 998 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:04,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26516 states. [2022-01-18 01:39:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26516 to 18012. [2022-01-18 01:39:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18012 states, 18011 states have (on average 4.485536616512132) internal successors, (80789), 18011 states have internal predecessors, (80789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18012 states to 18012 states and 80789 transitions. [2022-01-18 01:39:05,269 INFO L78 Accepts]: Start accepts. Automaton has 18012 states and 80789 transitions. Word has length 192 [2022-01-18 01:39:05,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:05,282 INFO L470 AbstractCegarLoop]: Abstraction has 18012 states and 80789 transitions. [2022-01-18 01:39:05,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 18012 states and 80789 transitions. [2022-01-18 01:39:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:05,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:05,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:05,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 01:39:05,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:05,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:05,342 INFO L85 PathProgramCache]: Analyzing trace with hash 998569369, now seen corresponding path program 3 times [2022-01-18 01:39:05,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:05,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049269395] [2022-01-18 01:39:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:05,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:05,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049269395] [2022-01-18 01:39:05,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049269395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:05,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:05,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:05,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138156561] [2022-01-18 01:39:05,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:05,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:05,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:05,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:05,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:05,504 INFO L87 Difference]: Start difference. First operand 18012 states and 80789 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:05,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:05,747 INFO L93 Difference]: Finished difference Result 23486 states and 106066 transitions. [2022-01-18 01:39:05,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:39:05,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:05,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:05,844 INFO L225 Difference]: With dead ends: 23486 [2022-01-18 01:39:05,844 INFO L226 Difference]: Without dead ends: 22772 [2022-01-18 01:39:05,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:05,845 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 184 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:05,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 494 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22772 states. [2022-01-18 01:39:06,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22772 to 20868. [2022-01-18 01:39:06,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20868 states, 20867 states have (on average 4.5036181530646475) internal successors, (93977), 20867 states have internal predecessors, (93977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:06,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20868 states to 20868 states and 93977 transitions. [2022-01-18 01:39:06,627 INFO L78 Accepts]: Start accepts. Automaton has 20868 states and 93977 transitions. Word has length 192 [2022-01-18 01:39:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:06,628 INFO L470 AbstractCegarLoop]: Abstraction has 20868 states and 93977 transitions. [2022-01-18 01:39:06,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 20868 states and 93977 transitions. [2022-01-18 01:39:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:06,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:06,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:06,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 01:39:06,685 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash 167337431, now seen corresponding path program 4 times [2022-01-18 01:39:06,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:06,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978809526] [2022-01-18 01:39:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:06,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:06,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:06,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978809526] [2022-01-18 01:39:06,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978809526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:06,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:06,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:06,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885522144] [2022-01-18 01:39:06,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:06,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:06,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:06,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:06,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:06,844 INFO L87 Difference]: Start difference. First operand 20868 states and 93977 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:07,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:07,223 INFO L93 Difference]: Finished difference Result 29968 states and 135963 transitions. [2022-01-18 01:39:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 01:39:07,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:07,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:07,604 INFO L225 Difference]: With dead ends: 29968 [2022-01-18 01:39:07,604 INFO L226 Difference]: Without dead ends: 29968 [2022-01-18 01:39:07,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:39:07,605 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 174 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:07,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 776 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:07,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29968 states. [2022-01-18 01:39:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29968 to 19202. [2022-01-18 01:39:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19202 states, 19201 states have (on average 4.506119472944118) internal successors, (86522), 19201 states have internal predecessors, (86522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19202 states to 19202 states and 86522 transitions. [2022-01-18 01:39:08,176 INFO L78 Accepts]: Start accepts. Automaton has 19202 states and 86522 transitions. Word has length 192 [2022-01-18 01:39:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:08,177 INFO L470 AbstractCegarLoop]: Abstraction has 19202 states and 86522 transitions. [2022-01-18 01:39:08,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand 19202 states and 86522 transitions. [2022-01-18 01:39:08,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:08,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:08,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:08,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 01:39:08,223 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:08,223 INFO L85 PathProgramCache]: Analyzing trace with hash 747091021, now seen corresponding path program 5 times [2022-01-18 01:39:08,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:08,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129659530] [2022-01-18 01:39:08,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:08,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:08,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:08,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129659530] [2022-01-18 01:39:08,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129659530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:08,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:08,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:08,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865524178] [2022-01-18 01:39:08,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:08,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:08,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:08,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:08,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:08,548 INFO L87 Difference]: Start difference. First operand 19202 states and 86522 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:09,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:09,391 INFO L93 Difference]: Finished difference Result 34746 states and 152662 transitions. [2022-01-18 01:39:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:39:09,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:09,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:09,548 INFO L225 Difference]: With dead ends: 34746 [2022-01-18 01:39:09,548 INFO L226 Difference]: Without dead ends: 34032 [2022-01-18 01:39:09,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:09,555 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 160 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:09,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 725 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 01:39:09,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34032 states. [2022-01-18 01:39:10,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34032 to 20868. [2022-01-18 01:39:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20868 states, 20867 states have (on average 4.492212584463507) internal successors, (93739), 20867 states have internal predecessors, (93739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:10,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20868 states to 20868 states and 93739 transitions. [2022-01-18 01:39:10,714 INFO L78 Accepts]: Start accepts. Automaton has 20868 states and 93739 transitions. Word has length 192 [2022-01-18 01:39:10,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:10,714 INFO L470 AbstractCegarLoop]: Abstraction has 20868 states and 93739 transitions. [2022-01-18 01:39:10,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 20868 states and 93739 transitions. [2022-01-18 01:39:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:10,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:10,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:10,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 01:39:10,808 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:10,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:10,808 INFO L85 PathProgramCache]: Analyzing trace with hash -84140917, now seen corresponding path program 6 times [2022-01-18 01:39:10,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:10,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382625090] [2022-01-18 01:39:10,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:10,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:10,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:10,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382625090] [2022-01-18 01:39:10,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382625090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:10,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:10,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:10,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188532420] [2022-01-18 01:39:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:11,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:11,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:11,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:11,009 INFO L87 Difference]: Start difference. First operand 20868 states and 93739 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:11,709 INFO L93 Difference]: Finished difference Result 40108 states and 178464 transitions. [2022-01-18 01:39:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 01:39:11,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:11,969 INFO L225 Difference]: With dead ends: 40108 [2022-01-18 01:39:11,969 INFO L226 Difference]: Without dead ends: 40108 [2022-01-18 01:39:11,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:39:11,970 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 202 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:11,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 590 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40108 states. [2022-01-18 01:39:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40108 to 18488. [2022-01-18 01:39:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18488 states, 18487 states have (on average 4.450316438578461) internal successors, (82273), 18487 states have internal predecessors, (82273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18488 states to 18488 states and 82273 transitions. [2022-01-18 01:39:12,819 INFO L78 Accepts]: Start accepts. Automaton has 18488 states and 82273 transitions. Word has length 192 [2022-01-18 01:39:12,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:12,820 INFO L470 AbstractCegarLoop]: Abstraction has 18488 states and 82273 transitions. [2022-01-18 01:39:12,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:12,820 INFO L276 IsEmpty]: Start isEmpty. Operand 18488 states and 82273 transitions. [2022-01-18 01:39:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-01-18 01:39:12,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:12,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:12,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 01:39:12,874 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:12,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:12,875 INFO L85 PathProgramCache]: Analyzing trace with hash -972832335, now seen corresponding path program 7 times [2022-01-18 01:39:12,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296014741] [2022-01-18 01:39:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:12,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:39:12,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:12,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296014741] [2022-01-18 01:39:12,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296014741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:39:12,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:39:12,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:39:12,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790274642] [2022-01-18 01:39:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:39:12,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:39:12,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:12,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:39:12,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:12,943 INFO L87 Difference]: Start difference. First operand 18488 states and 82273 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:13,375 INFO L93 Difference]: Finished difference Result 20450 states and 88085 transitions. [2022-01-18 01:39:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:39:13,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-01-18 01:39:13,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:13,452 INFO L225 Difference]: With dead ends: 20450 [2022-01-18 01:39:13,452 INFO L226 Difference]: Without dead ends: 19022 [2022-01-18 01:39:13,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:39:13,452 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 146 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:13,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 526 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:39:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19022 states. [2022-01-18 01:39:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19022 to 15632. [2022-01-18 01:39:13,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15632 states, 15631 states have (on average 4.419742818757597) internal successors, (69085), 15631 states have internal predecessors, (69085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15632 states to 15632 states and 69085 transitions. [2022-01-18 01:39:13,904 INFO L78 Accepts]: Start accepts. Automaton has 15632 states and 69085 transitions. Word has length 192 [2022-01-18 01:39:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:13,904 INFO L470 AbstractCegarLoop]: Abstraction has 15632 states and 69085 transitions. [2022-01-18 01:39:13,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 15632 states and 69085 transitions. [2022-01-18 01:39:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-18 01:39:13,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:13,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:13,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 01:39:13,944 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1626697740, now seen corresponding path program 1 times [2022-01-18 01:39:13,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:13,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992124222] [2022-01-18 01:39:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:13,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:15,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:15,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:15,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992124222] [2022-01-18 01:39:15,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992124222] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:39:15,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18550827] [2022-01-18 01:39:15,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:15,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:15,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:39:15,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:39:15,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 01:39:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:15,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 76 conjunts are in the unsatisfiable core [2022-01-18 01:39:15,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:39:15,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:39:15,471 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 01:39:15,471 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 01:39:15,528 INFO L353 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-01-18 01:39:15,528 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2022-01-18 01:39:16,697 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-01-18 01:39:16,698 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 43 [2022-01-18 01:39:16,930 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 01:39:18,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:39:18,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:39:18,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:39:19,135 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-18 01:39:19,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:19,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:39:22,243 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:39:22,244 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 49 [2022-01-18 01:39:22,250 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 335 [2022-01-18 01:39:22,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 290 [2022-01-18 01:39:22,264 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 242 [2022-01-18 01:39:22,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 122 [2022-01-18 01:39:24,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-01-18 01:39:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:24,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18550827] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:39:24,294 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:39:24,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 31, 31] total 77 [2022-01-18 01:39:24,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094664488] [2022-01-18 01:39:24,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:39:24,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-01-18 01:39:24,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-01-18 01:39:24,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=449, Invalid=5352, Unknown=51, NotChecked=0, Total=5852 [2022-01-18 01:39:24,300 INFO L87 Difference]: Start difference. First operand 15632 states and 69085 transitions. Second operand has 77 states, 77 states have (on average 6.194805194805195) internal successors, (477), 77 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:27,523 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((~q1_back~0 Int) (v_ArrVal_287 (Array Int Int)) (v_ArrVal_286 (Array Int Int)) (v_ArrVal_288 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_286)) (.cse1 (+ (* ~q1_back~0 4) |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|))) (or (<= c_~n1~0 ~q1_back~0) (<= (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) .cse1) 0) (< ~q1_back~0 0) (<= 1 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_287) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_288) |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) .cse1) c_~total~0))))) (or (< |c_ULTIMATE.start_create_fresh_int_array_~i~1#1| |c_ULTIMATE.start_create_fresh_int_array_~size#1|) (forall ((~q1_back~0 Int) (v_ArrVal_287 (Array Int Int)) (v_ArrVal_286 (Array Int Int)) (v_ArrVal_288 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_286)) (.cse3 (+ (* ~q1_back~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (or (<= c_~n1~0 ~q1_back~0) (<= 1 (+ c_~total~0 (select (select (store (store .cse2 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_287) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_288) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) .cse3))) (<= (select (select .cse2 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) .cse3) 0) (< ~q1_back~0 0)))))) is different from false [2022-01-18 01:39:27,527 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select |c_#valid| |c_ULTIMATE.start_main_~#t2~0#1.base|) 1)) (.cse1 (+ |c_#StackHeapBarrier| 1))) (and .cse0 (<= .cse1 |c_ULTIMATE.start_main_~#t1~0#1.base|) (<= 0 c_~total~0) (let ((.cse2 (= (select |c_#valid| |c_ULTIMATE.start_main_~#t3~0#1.base|) 1))) (or (and .cse0 (or (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#t3~0#1.base|) .cse2)) (and (or (= |c_ULTIMATE.start_main_~#t3~0#1.base| |c_ULTIMATE.start_main_~#t2~0#1.base|) .cse2) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#t2~0#1.base|)))) (<= .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base|) (forall ((~q1_back~0 Int) (v_ArrVal_287 (Array Int Int)) (v_ArrVal_286 (Array Int Int)) (v_ArrVal_288 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_286)) (.cse4 (+ (* ~q1_back~0 4) c_~q1~0.offset))) (or (<= c_~n1~0 ~q1_back~0) (<= (select (select .cse3 c_~q1~0.base) .cse4) 0) (<= 1 (+ (select (select (store (store .cse3 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_287) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_288) c_~q1~0.base) .cse4) c_~total~0)) (< ~q1_back~0 0)))) (= c_~total~0 0) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#t1~0#1.base|) (<= .cse1 |c_ULTIMATE.start_main_~#t3~0#1.base|))) is different from false [2022-01-18 01:39:28,760 WARN L838 $PredicateComparison]: unable to prove that (and (or (<= (+ c_~q1_back~0 1) c_~q1_front~0) (<= c_~n1~0 c_~q1_back~0) (< c_~q1_front~0 c_~q1_back~0) (< c_~q1_back~0 0) (forall ((v_ArrVal_287 (Array Int Int)) (v_ArrVal_286 (Array Int Int)) (v_ArrVal_288 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_286))) (or (<= 1 (+ (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_287) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_288) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) c_~total~0)) (not (= c_~C~0 (select (select .cse0 c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))))) (= |c_ULTIMATE.start_assume_abort_if_not_#in~cond#1| 0)) (forall ((~q1_back~0 Int) (v_ArrVal_287 (Array Int Int)) (v_ArrVal_286 (Array Int Int)) (v_ArrVal_288 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_286)) (.cse2 (+ (* ~q1_back~0 4) c_~q1~0.offset))) (or (<= c_~n1~0 ~q1_back~0) (<= (select (select .cse1 c_~q1~0.base) .cse2) 0) (<= 1 (+ (select (select (store (store .cse1 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_287) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_288) c_~q1~0.base) .cse2) c_~total~0)) (< ~q1_back~0 0))))) is different from false [2022-01-18 01:39:43,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:39:43,234 INFO L93 Difference]: Finished difference Result 209206 states and 929280 transitions. [2022-01-18 01:39:43,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-01-18 01:39:43,234 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 6.194805194805195) internal successors, (477), 77 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-01-18 01:39:43,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:39:44,741 INFO L225 Difference]: With dead ends: 209206 [2022-01-18 01:39:44,741 INFO L226 Difference]: Without dead ends: 166360 [2022-01-18 01:39:44,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 368 SyntacticMatches, 24 SemanticMatches, 192 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 12878 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=4499, Invalid=31719, Unknown=84, NotChecked=1140, Total=37442 [2022-01-18 01:39:44,755 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 9542 mSDsluCounter, 17005 mSDsCounter, 0 mSdLazyCounter, 4522 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9542 SdHoareTripleChecker+Valid, 14880 SdHoareTripleChecker+Invalid, 10571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 4522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5688 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:39:44,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9542 Valid, 14880 Invalid, 10571 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 4522 Invalid, 0 Unknown, 5688 Unchecked, 3.1s Time] [2022-01-18 01:39:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166360 states. [2022-01-18 01:39:48,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166360 to 52074. [2022-01-18 01:39:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52074 states, 52073 states have (on average 4.511474276496457) internal successors, (234926), 52073 states have internal predecessors, (234926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52074 states to 52074 states and 234926 transitions. [2022-01-18 01:39:48,759 INFO L78 Accepts]: Start accepts. Automaton has 52074 states and 234926 transitions. Word has length 195 [2022-01-18 01:39:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:39:48,759 INFO L470 AbstractCegarLoop]: Abstraction has 52074 states and 234926 transitions. [2022-01-18 01:39:48,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 6.194805194805195) internal successors, (477), 77 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:39:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 52074 states and 234926 transitions. [2022-01-18 01:39:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-18 01:39:48,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:39:48,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:39:48,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 01:39:49,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-18 01:39:49,129 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:39:49,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:39:49,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1178699188, now seen corresponding path program 2 times [2022-01-18 01:39:49,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:39:49,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066747158] [2022-01-18 01:39:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:39:49,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:39:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:39:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:50,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:39:50,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066747158] [2022-01-18 01:39:50,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066747158] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:39:50,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535441049] [2022-01-18 01:39:50,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:39:50,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:39:50,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:39:50,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:39:50,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 01:39:50,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:39:50,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:39:50,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-18 01:39:50,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:39:52,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:39:52,946 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:39:53,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:39:53,156 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:39:53,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:39:53,344 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:39:53,405 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-18 01:39:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:53,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:39:53,922 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:39:53,923 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1362 treesize of output 1306 [2022-01-18 01:39:53,937 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 643 treesize of output 595 [2022-01-18 01:39:53,946 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1238 treesize of output 1046 [2022-01-18 01:39:53,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1046 treesize of output 950 [2022-01-18 01:39:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:39:58,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535441049] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:39:58,825 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:39:58,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27, 27] total 69 [2022-01-18 01:39:58,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069053280] [2022-01-18 01:39:58,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:39:58,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-01-18 01:39:58,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:39:58,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-01-18 01:39:58,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=4361, Unknown=5, NotChecked=0, Total=4692 [2022-01-18 01:39:58,828 INFO L87 Difference]: Start difference. First operand 52074 states and 234926 transitions. Second operand has 69 states, 69 states have (on average 6.9855072463768115) internal successors, (482), 69 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:19,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:19,058 INFO L93 Difference]: Finished difference Result 279685 states and 1242281 transitions. [2022-01-18 01:40:19,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-01-18 01:40:19,059 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 6.9855072463768115) internal successors, (482), 69 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-01-18 01:40:19,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:21,397 INFO L225 Difference]: With dead ends: 279685 [2022-01-18 01:40:21,400 INFO L226 Difference]: Without dead ends: 242074 [2022-01-18 01:40:21,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 364 SyntacticMatches, 17 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11762 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=4556, Invalid=30595, Unknown=5, NotChecked=0, Total=35156 [2022-01-18 01:40:21,405 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 9033 mSDsluCounter, 17294 mSDsCounter, 0 mSdLazyCounter, 6099 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9033 SdHoareTripleChecker+Valid, 15771 SdHoareTripleChecker+Invalid, 7943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 6099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1437 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:21,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9033 Valid, 15771 Invalid, 7943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [407 Valid, 6099 Invalid, 0 Unknown, 1437 Unchecked, 3.2s Time] [2022-01-18 01:40:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242074 states. [2022-01-18 01:40:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242074 to 74517. [2022-01-18 01:40:26,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74517 states, 74516 states have (on average 4.541105265983145) internal successors, (338385), 74516 states have internal predecessors, (338385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74517 states to 74517 states and 338385 transitions. [2022-01-18 01:40:27,079 INFO L78 Accepts]: Start accepts. Automaton has 74517 states and 338385 transitions. Word has length 195 [2022-01-18 01:40:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:27,080 INFO L470 AbstractCegarLoop]: Abstraction has 74517 states and 338385 transitions. [2022-01-18 01:40:27,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 6.9855072463768115) internal successors, (482), 69 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 74517 states and 338385 transitions. [2022-01-18 01:40:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-18 01:40:27,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:27,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:27,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 01:40:27,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:27,549 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:40:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:27,550 INFO L85 PathProgramCache]: Analyzing trace with hash -514407345, now seen corresponding path program 1 times [2022-01-18 01:40:27,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:27,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422854696] [2022-01-18 01:40:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:27,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:40:27,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:27,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422854696] [2022-01-18 01:40:27,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422854696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:40:27,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:40:27,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 01:40:27,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893183257] [2022-01-18 01:40:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:40:27,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:40:27,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:40:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:40:27,609 INFO L87 Difference]: Start difference. First operand 74517 states and 338385 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:29,111 INFO L93 Difference]: Finished difference Result 101430 states and 446098 transitions. [2022-01-18 01:40:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:40:29,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-18 01:40:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:30,135 INFO L225 Difference]: With dead ends: 101430 [2022-01-18 01:40:30,136 INFO L226 Difference]: Without dead ends: 84558 [2022-01-18 01:40:30,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:40:30,136 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 443 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:30,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 683 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 01:40:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84558 states. [2022-01-18 01:40:32,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84558 to 80219. [2022-01-18 01:40:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80219 states, 80218 states have (on average 4.485464608940637) internal successors, (359815), 80218 states have internal predecessors, (359815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80219 states to 80219 states and 359815 transitions. [2022-01-18 01:40:33,813 INFO L78 Accepts]: Start accepts. Automaton has 80219 states and 359815 transitions. Word has length 198 [2022-01-18 01:40:33,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:33,814 INFO L470 AbstractCegarLoop]: Abstraction has 80219 states and 359815 transitions. [2022-01-18 01:40:33,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 80219 states and 359815 transitions. [2022-01-18 01:40:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-18 01:40:34,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:34,093 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:34,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 01:40:34,094 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:40:34,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:34,094 INFO L85 PathProgramCache]: Analyzing trace with hash -564764263, now seen corresponding path program 3 times [2022-01-18 01:40:34,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:34,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681728588] [2022-01-18 01:40:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:34,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:40:35,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:35,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681728588] [2022-01-18 01:40:35,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681728588] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:40:35,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558327828] [2022-01-18 01:40:35,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:40:35,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:35,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:40:35,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:40:35,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 01:40:36,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 01:40:36,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:40:36,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-18 01:40:36,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:40:36,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:40:36,842 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-01-18 01:40:36,875 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-01-18 01:40:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:40:36,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:40:36,996 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_406 (Array Int Int))) (<= 1 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_406) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) c_~total~0))) is different from false [2022-01-18 01:40:37,026 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:40:37,026 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 46 [2022-01-18 01:40:37,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-01-18 01:40:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2022-01-18 01:40:37,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558327828] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:40:37,640 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:40:37,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 17, 17] total 54 [2022-01-18 01:40:37,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775806562] [2022-01-18 01:40:37,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:40:37,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-18 01:40:37,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:37,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-18 01:40:37,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2525, Unknown=1, NotChecked=102, Total=2862 [2022-01-18 01:40:37,643 INFO L87 Difference]: Start difference. First operand 80219 states and 359815 transitions. Second operand has 54 states, 54 states have (on average 8.851851851851851) internal successors, (478), 54 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:44,627 INFO L93 Difference]: Finished difference Result 127238 states and 560818 transitions. [2022-01-18 01:40:44,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 01:40:44,627 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 8.851851851851851) internal successors, (478), 54 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2022-01-18 01:40:44,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:45,539 INFO L225 Difference]: With dead ends: 127238 [2022-01-18 01:40:45,539 INFO L226 Difference]: Without dead ends: 124169 [2022-01-18 01:40:45,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 382 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2661 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1374, Invalid=9549, Unknown=1, NotChecked=206, Total=11130 [2022-01-18 01:40:45,540 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1877 mSDsluCounter, 8198 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 7820 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 772 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:45,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1877 Valid, 7820 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3030 Invalid, 0 Unknown, 772 Unchecked, 1.4s Time] [2022-01-18 01:40:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124169 states. [2022-01-18 01:40:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124169 to 80138. [2022-01-18 01:40:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80138 states, 80137 states have (on average 4.46707513383331) internal successors, (357978), 80137 states have internal predecessors, (357978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80138 states to 80138 states and 357978 transitions. [2022-01-18 01:40:49,498 INFO L78 Accepts]: Start accepts. Automaton has 80138 states and 357978 transitions. Word has length 202 [2022-01-18 01:40:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:49,498 INFO L470 AbstractCegarLoop]: Abstraction has 80138 states and 357978 transitions. [2022-01-18 01:40:49,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 8.851851851851851) internal successors, (478), 54 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:49,514 INFO L276 IsEmpty]: Start isEmpty. Operand 80138 states and 357978 transitions. [2022-01-18 01:40:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-18 01:40:49,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:49,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:49,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 01:40:49,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:49,958 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:40:49,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:49,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2004726830, now seen corresponding path program 1 times [2022-01-18 01:40:49,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:49,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118080562] [2022-01-18 01:40:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:49,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 01:40:50,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:50,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118080562] [2022-01-18 01:40:50,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118080562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:40:50,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:40:50,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:40:50,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220292304] [2022-01-18 01:40:50,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:40:50,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:40:50,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:50,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:40:50,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:40:50,107 INFO L87 Difference]: Start difference. First operand 80138 states and 357978 transitions. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:51,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:51,669 INFO L93 Difference]: Finished difference Result 111346 states and 488325 transitions. [2022-01-18 01:40:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:40:51,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2022-01-18 01:40:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:40:52,268 INFO L225 Difference]: With dead ends: 111346 [2022-01-18 01:40:52,269 INFO L226 Difference]: Without dead ends: 100999 [2022-01-18 01:40:52,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:40:52,269 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 121 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:40:52,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 692 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:40:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100999 states. [2022-01-18 01:40:55,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100999 to 88786. [2022-01-18 01:40:55,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88786 states, 88785 states have (on average 4.4360533873965196) internal successors, (393855), 88785 states have internal predecessors, (393855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88786 states to 88786 states and 393855 transitions. [2022-01-18 01:40:55,673 INFO L78 Accepts]: Start accepts. Automaton has 88786 states and 393855 transitions. Word has length 205 [2022-01-18 01:40:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:40:55,674 INFO L470 AbstractCegarLoop]: Abstraction has 88786 states and 393855 transitions. [2022-01-18 01:40:55,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 88786 states and 393855 transitions. [2022-01-18 01:40:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-18 01:40:56,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:40:56,402 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:40:56,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 01:40:56,402 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:40:56,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:40:56,403 INFO L85 PathProgramCache]: Analyzing trace with hash -692363974, now seen corresponding path program 4 times [2022-01-18 01:40:56,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:40:56,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720945856] [2022-01-18 01:40:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:40:56,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:40:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:40:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:40:56,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:40:56,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720945856] [2022-01-18 01:40:56,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720945856] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:40:56,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042643583] [2022-01-18 01:40:56,576 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 01:40:56,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:40:56,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:40:56,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:40:56,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 01:40:56,711 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 01:40:56,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:40:56,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 01:40:56,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:40:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:40:57,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:40:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:40:57,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042643583] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:40:57,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:40:57,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 14 [2022-01-18 01:40:57,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335163408] [2022-01-18 01:40:57,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:40:57,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 01:40:57,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:40:57,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 01:40:57,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:40:57,290 INFO L87 Difference]: Start difference. First operand 88786 states and 393855 transitions. Second operand has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:40:59,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:40:59,123 INFO L93 Difference]: Finished difference Result 138551 states and 612453 transitions. [2022-01-18 01:40:59,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:40:59,124 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2022-01-18 01:40:59,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:00,113 INFO L225 Difference]: With dead ends: 138551 [2022-01-18 01:41:00,113 INFO L226 Difference]: Without dead ends: 131960 [2022-01-18 01:41:00,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:41:00,115 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 670 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:00,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 1304 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:41:00,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131960 states. [2022-01-18 01:41:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131960 to 109922. [2022-01-18 01:41:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109922 states, 109921 states have (on average 4.4655525331829224) internal successors, (490858), 109921 states have internal predecessors, (490858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109922 states to 109922 states and 490858 transitions. [2022-01-18 01:41:04,672 INFO L78 Accepts]: Start accepts. Automaton has 109922 states and 490858 transitions. Word has length 205 [2022-01-18 01:41:04,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:41:04,673 INFO L470 AbstractCegarLoop]: Abstraction has 109922 states and 490858 transitions. [2022-01-18 01:41:04,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 109922 states and 490858 transitions. [2022-01-18 01:41:05,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-18 01:41:05,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:05,022 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:05,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 01:41:05,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 01:41:05,241 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:41:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1044484070, now seen corresponding path program 5 times [2022-01-18 01:41:05,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:05,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914686259] [2022-01-18 01:41:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:05,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:05,384 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:41:05,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:05,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914686259] [2022-01-18 01:41:05,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914686259] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:41:05,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752563488] [2022-01-18 01:41:05,384 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 01:41:05,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:41:05,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:41:05,403 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:41:05,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 01:41:05,537 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 01:41:05,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:41:05,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-18 01:41:05,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:41:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:41:05,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:41:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 01:41:06,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752563488] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:41:06,251 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:41:06,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 25 [2022-01-18 01:41:06,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912680580] [2022-01-18 01:41:06,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:41:06,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 01:41:06,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:06,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 01:41:06,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2022-01-18 01:41:06,257 INFO L87 Difference]: Start difference. First operand 109922 states and 490858 transitions. Second operand has 25 states, 25 states have (on average 10.96) internal successors, (274), 25 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:41:10,713 INFO L93 Difference]: Finished difference Result 276393 states and 1241346 transitions. [2022-01-18 01:41:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 01:41:10,713 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.96) internal successors, (274), 25 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2022-01-18 01:41:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:12,772 INFO L225 Difference]: With dead ends: 276393 [2022-01-18 01:41:12,773 INFO L226 Difference]: Without dead ends: 274719 [2022-01-18 01:41:12,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=445, Invalid=1535, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 01:41:12,784 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1457 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:12,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 3906 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 01:41:14,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274719 states. [2022-01-18 01:41:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274719 to 113373. [2022-01-18 01:41:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113373 states, 113372 states have (on average 4.455491655788025) internal successors, (505128), 113372 states have internal predecessors, (505128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113373 states to 113373 states and 505128 transitions. [2022-01-18 01:41:21,750 INFO L78 Accepts]: Start accepts. Automaton has 113373 states and 505128 transitions. Word has length 205 [2022-01-18 01:41:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:41:21,750 INFO L470 AbstractCegarLoop]: Abstraction has 113373 states and 505128 transitions. [2022-01-18 01:41:21,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.96) internal successors, (274), 25 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 113373 states and 505128 transitions. [2022-01-18 01:41:22,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-18 01:41:22,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:41:22,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:41:22,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 01:41:22,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-18 01:41:22,318 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:41:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:41:22,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1867267043, now seen corresponding path program 1 times [2022-01-18 01:41:22,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:41:22,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746918025] [2022-01-18 01:41:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:22,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:41:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:22,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 01:41:22,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:41:22,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746918025] [2022-01-18 01:41:22,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746918025] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:41:22,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365574125] [2022-01-18 01:41:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:41:22,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:41:22,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:41:22,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:41:22,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 01:41:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:41:22,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-18 01:41:22,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:41:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:41:24,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:41:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:41:25,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365574125] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:41:25,132 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:41:25,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 15] total 34 [2022-01-18 01:41:25,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503040933] [2022-01-18 01:41:25,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:41:25,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 01:41:25,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:41:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 01:41:25,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=966, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 01:41:25,135 INFO L87 Difference]: Start difference. First operand 113373 states and 505128 transitions. Second operand has 34 states, 34 states have (on average 15.382352941176471) internal successors, (523), 34 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:41:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:41:41,614 INFO L93 Difference]: Finished difference Result 606834 states and 2717029 transitions. [2022-01-18 01:41:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-01-18 01:41:41,614 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 15.382352941176471) internal successors, (523), 34 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-01-18 01:41:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:41:46,537 INFO L225 Difference]: With dead ends: 606834 [2022-01-18 01:41:46,537 INFO L226 Difference]: Without dead ends: 544038 [2022-01-18 01:41:46,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17533 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=6664, Invalid=37646, Unknown=0, NotChecked=0, Total=44310 [2022-01-18 01:41:46,540 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 3410 mSDsluCounter, 13410 mSDsCounter, 0 mSdLazyCounter, 6181 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3410 SdHoareTripleChecker+Valid, 12696 SdHoareTripleChecker+Invalid, 6523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 6181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:41:46,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3410 Valid, 12696 Invalid, 6523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 6181 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-18 01:41:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544038 states. [2022-01-18 01:41:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544038 to 154090. [2022-01-18 01:41:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154090 states, 154089 states have (on average 4.608966246779459) internal successors, (710191), 154089 states have internal predecessors, (710191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154090 states to 154090 states and 710191 transitions. [2022-01-18 01:42:00,791 INFO L78 Accepts]: Start accepts. Automaton has 154090 states and 710191 transitions. Word has length 208 [2022-01-18 01:42:00,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:42:00,791 INFO L470 AbstractCegarLoop]: Abstraction has 154090 states and 710191 transitions. [2022-01-18 01:42:00,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 15.382352941176471) internal successors, (523), 34 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:00,792 INFO L276 IsEmpty]: Start isEmpty. Operand 154090 states and 710191 transitions. [2022-01-18 01:42:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-18 01:42:01,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:42:01,988 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:42:02,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 01:42:02,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:42:02,204 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:42:02,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:42:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1749545573, now seen corresponding path program 6 times [2022-01-18 01:42:02,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:42:02,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775376305] [2022-01-18 01:42:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:42:02,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:42:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:42:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:42:03,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:42:03,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775376305] [2022-01-18 01:42:03,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775376305] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:42:03,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226439904] [2022-01-18 01:42:03,433 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 01:42:03,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:42:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:42:03,434 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:42:03,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 01:42:03,617 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 01:42:03,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:42:03,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 84 conjunts are in the unsatisfiable core [2022-01-18 01:42:03,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:42:03,688 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:42:03,733 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 01:42:03,733 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 01:42:03,777 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 01:42:03,780 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 01:42:03,845 INFO L353 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-01-18 01:42:03,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 30 [2022-01-18 01:42:04,705 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-01-18 01:42:04,706 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 43 [2022-01-18 01:42:04,985 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 01:42:06,267 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:42:06,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:42:06,651 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-01-18 01:42:06,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-01-18 01:42:06,978 INFO L353 Elim1Store]: treesize reduction 48, result has 5.9 percent of original size [2022-01-18 01:42:06,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 15 [2022-01-18 01:42:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:42:07,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:42:12,048 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:42:12,049 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 94 [2022-01-18 01:42:12,063 INFO L353 Elim1Store]: treesize reduction 37, result has 27.5 percent of original size [2022-01-18 01:42:12,063 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 523 treesize of output 480 [2022-01-18 01:42:12,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:42:12,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 414 treesize of output 318 [2022-01-18 01:42:12,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:42:12,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 270 [2022-01-18 01:42:12,094 INFO L353 Elim1Store]: treesize reduction 37, result has 27.5 percent of original size [2022-01-18 01:42:12,095 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 162 [2022-01-18 01:42:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:42:14,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226439904] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:42:14,875 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:42:14,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 32, 32] total 86 [2022-01-18 01:42:14,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179274403] [2022-01-18 01:42:14,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:42:14,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-01-18 01:42:14,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:42:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-01-18 01:42:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=6771, Unknown=50, NotChecked=0, Total=7310 [2022-01-18 01:42:14,877 INFO L87 Difference]: Start difference. First operand 154090 states and 710191 transitions. Second operand has 86 states, 86 states have (on average 6.488372093023256) internal successors, (558), 86 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:42:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:42:44,930 INFO L93 Difference]: Finished difference Result 761754 states and 3440466 transitions. [2022-01-18 01:42:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 01:42:44,930 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 6.488372093023256) internal successors, (558), 86 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-01-18 01:42:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:42:53,885 INFO L225 Difference]: With dead ends: 761754 [2022-01-18 01:42:53,885 INFO L226 Difference]: Without dead ends: 708092 [2022-01-18 01:42:53,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 381 SyntacticMatches, 40 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 12511 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=3920, Invalid=31186, Unknown=50, NotChecked=0, Total=35156 [2022-01-18 01:42:53,887 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 9827 mSDsluCounter, 21828 mSDsCounter, 0 mSdLazyCounter, 7106 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9827 SdHoareTripleChecker+Valid, 19005 SdHoareTripleChecker+Invalid, 13063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 7106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5550 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:42:53,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9827 Valid, 19005 Invalid, 13063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [407 Valid, 7106 Invalid, 0 Unknown, 5550 Unchecked, 4.0s Time] [2022-01-18 01:42:55,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708092 states. [2022-01-18 01:43:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708092 to 407930. [2022-01-18 01:43:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407930 states, 407929 states have (on average 4.641631264264125) internal successors, (1893456), 407929 states have internal predecessors, (1893456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:25,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407930 states to 407930 states and 1893456 transitions. [2022-01-18 01:43:25,558 INFO L78 Accepts]: Start accepts. Automaton has 407930 states and 1893456 transitions. Word has length 208 [2022-01-18 01:43:25,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:25,558 INFO L470 AbstractCegarLoop]: Abstraction has 407930 states and 1893456 transitions. [2022-01-18 01:43:25,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 6.488372093023256) internal successors, (558), 86 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:25,558 INFO L276 IsEmpty]: Start isEmpty. Operand 407930 states and 1893456 transitions. [2022-01-18 01:43:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-18 01:43:28,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:28,822 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:28,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:29,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:29,039 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 01:43:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2097423171, now seen corresponding path program 7 times [2022-01-18 01:43:29,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:29,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829834639] [2022-01-18 01:43:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:29,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:30,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:30,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829834639] [2022-01-18 01:43:30,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829834639] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:30,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957475166] [2022-01-18 01:43:30,366 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 01:43:30,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:30,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:30,376 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:30,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 01:43:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:30,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 89 conjunts are in the unsatisfiable core [2022-01-18 01:43:30,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:30,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:43:31,273 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 01:43:31,273 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 01:43:31,643 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 01:43:32,934 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 01:43:33,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:43:33,606 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-01-18 01:43:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:43:34,038 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2022-01-18 01:43:34,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2022-01-18 01:43:34,370 INFO L353 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-01-18 01:43:34,371 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 12 [2022-01-18 01:43:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:34,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:37,773 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 01:43:37,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 98 [2022-01-18 01:43:37,785 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 01:43:37,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60227 treesize of output 57002 [2022-01-18 01:43:37,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56950 treesize of output 49782 [2022-01-18 01:43:38,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 01:43:38,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49782 treesize of output 44918 [2022-01-18 01:43:38,134 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 01:43:38,135 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44962 treesize of output 42511 [2022-01-18 01:43:38,254 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-18 01:43:38,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42486 treesize of output 32758 [2022-01-18 01:43:39,681 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2022-01-18 01:43:39,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-01-18 01:43:39,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:39,899 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:635) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:496) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:496) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:635) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-18 01:43:39,902 INFO L158 Benchmark]: Toolchain (without parser) took 285808.01ms. Allocated memory was 350.2MB in the beginning and 15.9GB in the end (delta: 15.6GB). Free memory was 295.6MB in the beginning and 10.2GB in the end (delta: -9.9GB). Peak memory consumption was 6.1GB. Max. memory is 16.0GB. [2022-01-18 01:43:39,902 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 350.2MB. Free memory is still 312.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:43:39,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.61ms. Allocated memory was 350.2MB in the beginning and 471.9MB in the end (delta: 121.6MB). Free memory was 295.5MB in the beginning and 443.3MB in the end (delta: -147.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. [2022-01-18 01:43:39,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.53ms. Allocated memory is still 471.9MB. Free memory was 443.3MB in the beginning and 440.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 01:43:39,903 INFO L158 Benchmark]: Boogie Preprocessor took 20.90ms. Allocated memory is still 471.9MB. Free memory was 440.1MB in the beginning and 438.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:43:39,903 INFO L158 Benchmark]: RCFGBuilder took 585.68ms. Allocated memory is still 471.9MB. Free memory was 438.0MB in the beginning and 399.2MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2022-01-18 01:43:39,903 INFO L158 Benchmark]: TraceAbstraction took 284938.36ms. Allocated memory was 471.9MB in the beginning and 15.9GB in the end (delta: 15.5GB). Free memory was 398.2MB in the beginning and 10.2GB in the end (delta: -9.8GB). Peak memory consumption was 6.0GB. Max. memory is 16.0GB. [2022-01-18 01:43:39,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 350.2MB. Free memory is still 312.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 218.61ms. Allocated memory was 350.2MB in the beginning and 471.9MB in the end (delta: 121.6MB). Free memory was 295.5MB in the beginning and 443.3MB in the end (delta: -147.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.53ms. Allocated memory is still 471.9MB. Free memory was 443.3MB in the beginning and 440.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.90ms. Allocated memory is still 471.9MB. Free memory was 440.1MB in the beginning and 438.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 585.68ms. Allocated memory is still 471.9MB. Free memory was 438.0MB in the beginning and 399.2MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 284938.36ms. Allocated memory was 471.9MB in the beginning and 15.9GB in the end (delta: 15.5GB). Free memory was 398.2MB in the beginning and 10.2GB in the end (delta: -9.8GB). Peak memory consumption was 6.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-18 01:43:39,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...