/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:24:10,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:24:10,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:24:10,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:24:10,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:24:10,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:24:10,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:24:10,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:24:10,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:24:10,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:24:10,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:24:10,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:24:10,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:24:10,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:24:10,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:24:10,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:24:10,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:24:10,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:24:10,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:24:10,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:24:10,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:24:10,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:24:10,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:24:10,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:24:10,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:24:10,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:24:10,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:24:10,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:24:10,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:24:10,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:24:10,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:24:10,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:24:10,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:24:10,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:24:10,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:24:10,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:24:10,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:24:10,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:24:10,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:24:10,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:24:10,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:24:10,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:24:10,564 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:24:10,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:24:10,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:24:10,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:24:10,567 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:24:10,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:24:10,567 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:24:10,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:24:10,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:24:10,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:24:10,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:24:10,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:24:10,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:24:10,569 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:24:10,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:24:10,569 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:24:10,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:24:10,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:24:10,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:24:10,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:24:10,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:24:10,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:24:10,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:24:10,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:24:10,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:24:10,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:24:10,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:24:10,571 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:24:10,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:24:10,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:24:10,572 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:24:10,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:24:10,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:24:10,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:24:10,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:24:10,955 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:24:10,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-10-22 02:24:11,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120d8b59f/dc1996ba456b49f99fde79946c2538d2/FLAG6d55f6835 [2020-10-22 02:24:11,612 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:24:11,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-10-22 02:24:11,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120d8b59f/dc1996ba456b49f99fde79946c2538d2/FLAG6d55f6835 [2020-10-22 02:24:11,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120d8b59f/dc1996ba456b49f99fde79946c2538d2 [2020-10-22 02:24:11,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:24:11,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:24:11,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:24:11,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:24:11,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:24:11,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:24:11" (1/1) ... [2020-10-22 02:24:11,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d1e96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:11, skipping insertion in model container [2020-10-22 02:24:11,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:24:11" (1/1) ... [2020-10-22 02:24:11,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:24:11,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:24:12,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:24:12,567 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:24:12,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:24:12,685 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:24:12,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12 WrapperNode [2020-10-22 02:24:12,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:24:12,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:24:12,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:24:12,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:24:12,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:24:12,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:24:12,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:24:12,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:24:12,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... [2020-10-22 02:24:12,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:24:12,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:24:12,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:24:12,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:24:12,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:24:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:24:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:24:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:24:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:24:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:24:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:24:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:24:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:24:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:24:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:24:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 02:24:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 02:24:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:24:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:24:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:24:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:24:12,851 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:24:13,261 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:24:13,262 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:24:13,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:24:13 BoogieIcfgContainer [2020-10-22 02:24:13,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:24:13,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:24:13,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:24:13,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:24:13,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:24:11" (1/3) ... [2020-10-22 02:24:13,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c32e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:24:13, skipping insertion in model container [2020-10-22 02:24:13,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:24:12" (2/3) ... [2020-10-22 02:24:13,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c32e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:24:13, skipping insertion in model container [2020-10-22 02:24:13,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:24:13" (3/3) ... [2020-10-22 02:24:13,275 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2020-10-22 02:24:13,288 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:24:13,289 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:24:13,297 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:24:13,298 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:24:13,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,335 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,335 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,342 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,342 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,343 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,343 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,347 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,366 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,382 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,382 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,383 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,389 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,390 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:24:13,396 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:24:13,407 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 02:24:13,426 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:24:13,427 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:24:13,427 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:24:13,427 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:24:13,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:24:13,427 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:24:13,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:24:13,427 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:24:13,442 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:24:13,442 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-22 02:24:13,445 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-22 02:24:13,446 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-10-22 02:24:13,501 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-10-22 02:24:13,501 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:24:13,507 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-22 02:24:13,512 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-10-22 02:24:15,314 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-22 02:24:15,427 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-22 02:24:15,455 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-10-22 02:24:15,456 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-22 02:24:15,464 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-22 02:24:15,578 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-22 02:24:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-22 02:24:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:24:15,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:15,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:15,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:15,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:15,636 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-10-22 02:24:15,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:15,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690854433] [2020-10-22 02:24:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:15,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690854433] [2020-10-22 02:24:15,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:15,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:24:15,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [818108848] [2020-10-22 02:24:15,908 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:15,913 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:15,930 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:24:15,931 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:15,935 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:15,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:24:15,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:15,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:24:15,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:24:15,950 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-22 02:24:16,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:16,002 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-22 02:24:16,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:24:16,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-22 02:24:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:16,044 INFO L225 Difference]: With dead ends: 1450 [2020-10-22 02:24:16,044 INFO L226 Difference]: Without dead ends: 1194 [2020-10-22 02:24:16,046 INFO L677 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 [2020-10-22 02:24:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-22 02:24:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-22 02:24:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-22 02:24:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-22 02:24:16,207 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-22 02:24:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:16,208 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-22 02:24:16,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:24:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-22 02:24:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:24:16,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:16,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:16,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:24:16,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:16,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:16,213 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-10-22 02:24:16,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:16,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610537837] [2020-10-22 02:24:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:16,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610537837] [2020-10-22 02:24:16,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:16,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:24:16,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [163719319] [2020-10-22 02:24:16,407 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:16,408 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:16,411 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-22 02:24:16,411 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:16,411 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:16,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:24:16,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:16,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:24:16,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:24:16,414 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-22 02:24:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:16,464 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-22 02:24:16,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:24:16,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:24:16,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:16,475 INFO L225 Difference]: With dead ends: 1322 [2020-10-22 02:24:16,475 INFO L226 Difference]: Without dead ends: 1066 [2020-10-22 02:24:16,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:24:16,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-22 02:24:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-22 02:24:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-22 02:24:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-22 02:24:16,524 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-22 02:24:16,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:16,525 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-22 02:24:16,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:24:16,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-22 02:24:16,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:24:16,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:16,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:16,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:24:16,528 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:16,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:16,529 INFO L82 PathProgramCache]: Analyzing trace with hash -947011909, now seen corresponding path program 1 times [2020-10-22 02:24:16,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:16,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848551688] [2020-10-22 02:24:16,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:16,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848551688] [2020-10-22 02:24:16,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:16,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:24:16,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [724169994] [2020-10-22 02:24:16,649 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:16,650 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:16,654 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-10-22 02:24:16,654 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:16,676 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:16,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:24:16,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:16,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:24:16,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:24:16,678 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-22 02:24:16,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:16,719 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-22 02:24:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:24:16,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 02:24:16,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:16,728 INFO L225 Difference]: With dead ends: 1162 [2020-10-22 02:24:16,728 INFO L226 Difference]: Without dead ends: 970 [2020-10-22 02:24:16,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:24:16,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-22 02:24:16,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-22 02:24:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-22 02:24:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-22 02:24:16,774 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-22 02:24:16,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:16,775 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-22 02:24:16,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:24:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-22 02:24:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:24:16,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:16,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:16,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:24:16,779 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash 639503440, now seen corresponding path program 1 times [2020-10-22 02:24:16,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:16,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68244312] [2020-10-22 02:24:16,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:16,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68244312] [2020-10-22 02:24:16,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:16,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:24:16,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [534069989] [2020-10-22 02:24:16,884 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:16,885 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:16,888 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-22 02:24:16,888 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:16,966 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:16,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:24:16,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:16,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:24:16,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:24:16,968 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-22 02:24:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:16,999 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-22 02:24:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:24:17,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 02:24:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:17,009 INFO L225 Difference]: With dead ends: 1042 [2020-10-22 02:24:17,009 INFO L226 Difference]: Without dead ends: 898 [2020-10-22 02:24:17,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:24:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-22 02:24:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-22 02:24:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-22 02:24:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-22 02:24:17,082 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-22 02:24:17,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:17,082 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-22 02:24:17,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:24:17,083 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-22 02:24:17,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:24:17,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:17,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:17,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:24:17,085 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:17,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:17,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1650268135, now seen corresponding path program 1 times [2020-10-22 02:24:17,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:17,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297065889] [2020-10-22 02:24:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:17,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297065889] [2020-10-22 02:24:17,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:17,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:24:17,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1017297103] [2020-10-22 02:24:17,147 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:17,149 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:17,155 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 64 transitions. [2020-10-22 02:24:17,155 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:17,441 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:17,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:24:17,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:17,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:24:17,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:24:17,443 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 5 states. [2020-10-22 02:24:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:17,503 INFO L93 Difference]: Finished difference Result 1138 states and 3835 transitions. [2020-10-22 02:24:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:24:17,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:24:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:17,509 INFO L225 Difference]: With dead ends: 1138 [2020-10-22 02:24:17,509 INFO L226 Difference]: Without dead ends: 550 [2020-10-22 02:24:17,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:24:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-22 02:24:17,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-10-22 02:24:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-22 02:24:17,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1734 transitions. [2020-10-22 02:24:17,530 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1734 transitions. Word has length 14 [2020-10-22 02:24:17,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:17,530 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1734 transitions. [2020-10-22 02:24:17,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:24:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1734 transitions. [2020-10-22 02:24:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:24:17,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:17,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:17,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:24:17,532 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:17,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1322311964, now seen corresponding path program 1 times [2020-10-22 02:24:17,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:17,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406462792] [2020-10-22 02:24:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:17,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406462792] [2020-10-22 02:24:17,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:17,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:24:17,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [45657909] [2020-10-22 02:24:17,593 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:17,595 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:17,606 INFO L252 McrAutomatonBuilder]: Finished intersection with 68 states and 144 transitions. [2020-10-22 02:24:17,606 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:18,297 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:18,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:24:18,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:18,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:24:18,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:24:18,299 INFO L87 Difference]: Start difference. First operand 550 states and 1734 transitions. Second operand 5 states. [2020-10-22 02:24:18,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:18,368 INFO L93 Difference]: Finished difference Result 688 states and 2129 transitions. [2020-10-22 02:24:18,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:24:18,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-22 02:24:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:18,373 INFO L225 Difference]: With dead ends: 688 [2020-10-22 02:24:18,373 INFO L226 Difference]: Without dead ends: 304 [2020-10-22 02:24:18,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:24:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-22 02:24:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-10-22 02:24:18,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-22 02:24:18,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 882 transitions. [2020-10-22 02:24:18,412 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 882 transitions. Word has length 16 [2020-10-22 02:24:18,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:18,412 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 882 transitions. [2020-10-22 02:24:18,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:24:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 882 transitions. [2020-10-22 02:24:18,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:24:18,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:18,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:18,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:24:18,414 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:18,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:18,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2040493692, now seen corresponding path program 1 times [2020-10-22 02:24:18,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:18,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208353534] [2020-10-22 02:24:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:18,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208353534] [2020-10-22 02:24:18,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:18,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:24:18,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [163291192] [2020-10-22 02:24:18,529 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:18,531 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:18,541 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 94 transitions. [2020-10-22 02:24:18,541 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:18,967 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:18,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:24:18,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:18,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:24:18,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:24:18,969 INFO L87 Difference]: Start difference. First operand 304 states and 882 transitions. Second operand 5 states. [2020-10-22 02:24:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:19,040 INFO L93 Difference]: Finished difference Result 388 states and 1110 transitions. [2020-10-22 02:24:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:24:19,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-22 02:24:19,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:19,042 INFO L225 Difference]: With dead ends: 388 [2020-10-22 02:24:19,042 INFO L226 Difference]: Without dead ends: 148 [2020-10-22 02:24:19,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:24:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-22 02:24:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-22 02:24:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-22 02:24:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-10-22 02:24:19,055 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 17 [2020-10-22 02:24:19,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:19,055 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-10-22 02:24:19,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:24:19,055 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-10-22 02:24:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:24:19,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:24:19,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:24:19,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:24:19,056 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:24:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:24:19,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2040946232, now seen corresponding path program 1 times [2020-10-22 02:24:19,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:24:19,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247673174] [2020-10-22 02:24:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:24:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:24:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:24:19,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247673174] [2020-10-22 02:24:19,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:24:19,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:24:19,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1831404526] [2020-10-22 02:24:19,164 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:24:19,167 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:24:19,173 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-10-22 02:24:19,173 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:24:19,266 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:24:19,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:24:19,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:24:19,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:24:19,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:24:19,267 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 6 states. [2020-10-22 02:24:19,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:24:19,364 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-10-22 02:24:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:24:19,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-22 02:24:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:24:19,365 INFO L225 Difference]: With dead ends: 124 [2020-10-22 02:24:19,365 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:24:19,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-22 02:24:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:24:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:24:19,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:24:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:24:19,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 02:24:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:24:19,366 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:24:19,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:24:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:24:19,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:24:19,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:24:19,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:24:19 BasicIcfg [2020-10-22 02:24:19,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:24:19,374 INFO L168 Benchmark]: Toolchain (without parser) took 7511.89 ms. Allocated memory was 145.2 MB in the beginning and 297.3 MB in the end (delta: 152.0 MB). Free memory was 99.5 MB in the beginning and 139.3 MB in the end (delta: -39.9 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,374 INFO L168 Benchmark]: CDTParser took 2.35 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.39 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 98.6 MB in the beginning and 155.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.91 ms. Allocated memory is still 201.9 MB. Free memory was 155.9 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,377 INFO L168 Benchmark]: Boogie Preprocessor took 28.26 ms. Allocated memory is still 201.9 MB. Free memory was 153.8 MB in the beginning and 151.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,378 INFO L168 Benchmark]: RCFGBuilder took 496.39 ms. Allocated memory is still 201.9 MB. Free memory was 151.7 MB in the beginning and 125.7 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,379 INFO L168 Benchmark]: TraceAbstraction took 6104.63 ms. Allocated memory was 201.9 MB in the beginning and 297.3 MB in the end (delta: 95.4 MB). Free memory was 125.0 MB in the beginning and 139.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:24:19,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.35 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 817.39 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 98.6 MB in the beginning and 155.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.91 ms. Allocated memory is still 201.9 MB. Free memory was 155.9 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.26 ms. Allocated memory is still 201.9 MB. Free memory was 153.8 MB in the beginning and 151.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 496.39 ms. Allocated memory is still 201.9 MB. Free memory was 151.7 MB in the beginning and 125.7 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6104.63 ms. Allocated memory was 201.9 MB in the beginning and 297.3 MB in the end (delta: 95.4 MB). Free memory was 125.0 MB in the beginning and 139.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1227 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 226 SDtfs, 249 SDslu, 319 SDs, 0 SdLazy, 80 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 5237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...