/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:51:46,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:51:46,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:51:46,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:51:46,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:51:46,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:51:46,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:51:46,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:51:46,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:51:46,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:51:46,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:51:46,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:51:46,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:51:46,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:51:46,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:51:46,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:51:46,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:51:46,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:51:46,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:51:46,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:51:46,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:51:46,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:51:46,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:51:46,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:51:46,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:51:46,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:51:46,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:51:46,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:51:46,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:51:46,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:51:46,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:51:46,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:51:46,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:51:46,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:51:46,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:51:46,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:51:46,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:51:46,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:51:46,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:51:46,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:51:46,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:51:46,405 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:51:46,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:51:46,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:51:46,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:51:46,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:51:46,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:51:46,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:51:46,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:51:46,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:51:46,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:51:46,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:51:46,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:51:46,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:51:46,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:51:46,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:51:46,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:51:46,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:51:46,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:51:46,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:51:46,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:51:46,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:51:46,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:51:46,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:51:46,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:51:46,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:51:46,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:51:46,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:51:46,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:51:46,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:51:46,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:51:46,750 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:51:46,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-05 22:51:46,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b011776/b1c8e1e8306245e69a44e782ffff9d1f/FLAGaccd45377 [2020-10-05 22:51:47,401 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:51:47,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-05 22:51:47,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b011776/b1c8e1e8306245e69a44e782ffff9d1f/FLAGaccd45377 [2020-10-05 22:51:47,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b011776/b1c8e1e8306245e69a44e782ffff9d1f [2020-10-05 22:51:47,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:51:47,709 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:51:47,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:51:47,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:51:47,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:51:47,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:51:47" (1/1) ... [2020-10-05 22:51:47,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6cd944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:47, skipping insertion in model container [2020-10-05 22:51:47,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:51:47" (1/1) ... [2020-10-05 22:51:47,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:51:47,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:51:48,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:51:48,255 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:51:48,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:51:48,378 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:51:48,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48 WrapperNode [2020-10-05 22:51:48,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:51:48,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:51:48,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:51:48,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:51:48,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:51:48,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:51:48,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:51:48,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:51:48,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (1/1) ... [2020-10-05 22:51:48,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:51:48,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:51:48,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:51:48,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:51:48,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (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 [2020-10-05 22:51:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:51:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:51:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:51:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:51:48,530 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:51:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:51:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:51:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:51:48,531 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:51:48,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:51:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-05 22:51:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-05 22:51:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:51:48,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:51:48,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:51:48,534 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:51:48,941 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:51:48,942 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:51:48,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:51:48 BoogieIcfgContainer [2020-10-05 22:51:48,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:51:48,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:51:48,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:51:48,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:51:48,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:51:47" (1/3) ... [2020-10-05 22:51:48,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5275718b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:51:48, skipping insertion in model container [2020-10-05 22:51:48,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:51:48" (2/3) ... [2020-10-05 22:51:48,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5275718b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:51:48, skipping insertion in model container [2020-10-05 22:51:48,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:51:48" (3/3) ... [2020-10-05 22:51:48,954 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-10-05 22:51:48,965 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:51:48,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:51:48,974 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:51:48,975 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:51:49,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,008 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,013 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,014 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,014 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,014 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,015 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,019 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,020 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,020 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,020 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,038 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,039 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,039 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:51:49,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 22:51:49,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:51:49,072 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:51:49,073 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:51:49,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:51:49,073 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:51:49,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:51:49,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:51:49,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:51:49,091 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-05 22:51:49,093 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-05 22:51:49,143 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-05 22:51:49,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:51:49,149 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:51:49,153 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-05 22:51:49,178 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-05 22:51:49,178 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:51:49,179 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-05 22:51:49,182 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-05 22:51:49,183 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:51:50,857 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-10-05 22:51:50,857 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-05 22:51:50,862 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-05 22:51:50,939 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-05 22:51:50,941 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-05 22:51:50,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 22:51:50,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:50,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:50,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:50,984 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-05 22:51:50,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:50,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718905277] [2020-10-05 22:51:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:51,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718905277] [2020-10-05 22:51:51,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:51,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:51:51,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090619815] [2020-10-05 22:51:51,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-05 22:51:51,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:51,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-05 22:51:51,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-05 22:51:51,205 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-05 22:51:51,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:51,266 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-05 22:51:51,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-05 22:51:51,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-05 22:51:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:51,299 INFO L225 Difference]: With dead ends: 850 [2020-10-05 22:51:51,299 INFO L226 Difference]: Without dead ends: 706 [2020-10-05 22:51:51,300 INFO L675 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 [2020-10-05 22:51:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-05 22:51:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-05 22:51:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-05 22:51:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-05 22:51:51,414 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-05 22:51:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:51,415 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-05 22:51:51,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-05 22:51:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-05 22:51:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:51:51,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:51,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:51,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:51:51,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:51,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:51,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-05 22:51:51,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:51,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786910352] [2020-10-05 22:51:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:51,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786910352] [2020-10-05 22:51:51,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:51,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:51:51,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650455205] [2020-10-05 22:51:51,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:51:51,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:51,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:51:51,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:51:51,563 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-05 22:51:51,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:51,596 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-05 22:51:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:51:51,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:51:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:51,604 INFO L225 Difference]: With dead ends: 778 [2020-10-05 22:51:51,604 INFO L226 Difference]: Without dead ends: 634 [2020-10-05 22:51:51,605 INFO L675 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 [2020-10-05 22:51:51,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-05 22:51:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-05 22:51:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-05 22:51:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-05 22:51:51,661 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-05 22:51:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:51,661 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-05 22:51:51,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:51:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-05 22:51:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:51:51,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:51,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:51,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:51:51,669 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:51,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-05 22:51:51,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:51,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265409607] [2020-10-05 22:51:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:51,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265409607] [2020-10-05 22:51:51,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:51,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:51:51,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082605479] [2020-10-05 22:51:51,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:51:51,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:51,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:51:51,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:51:51,794 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-10-05 22:51:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:51,835 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-10-05 22:51:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:51:51,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:51:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:51,839 INFO L225 Difference]: With dead ends: 688 [2020-10-05 22:51:51,840 INFO L226 Difference]: Without dead ends: 580 [2020-10-05 22:51:51,840 INFO L675 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 [2020-10-05 22:51:51,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-05 22:51:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-10-05 22:51:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-10-05 22:51:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-10-05 22:51:51,862 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-10-05 22:51:51,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:51,862 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-10-05 22:51:51,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:51:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-10-05 22:51:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:51:51,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:51,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:51,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:51:51,865 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:51,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-10-05 22:51:51,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:51,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936966823] [2020-10-05 22:51:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:51,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936966823] [2020-10-05 22:51:51,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:51,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:51:51,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294968736] [2020-10-05 22:51:51,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:51:51,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:51,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:51:51,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:51:51,918 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-10-05 22:51:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:51,976 INFO L93 Difference]: Finished difference Result 799 states and 2597 transitions. [2020-10-05 22:51:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:51:51,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:51:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:51,980 INFO L225 Difference]: With dead ends: 799 [2020-10-05 22:51:51,980 INFO L226 Difference]: Without dead ends: 430 [2020-10-05 22:51:51,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:51:51,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-05 22:51:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-05 22:51:51,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-05 22:51:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-10-05 22:51:51,996 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-10-05 22:51:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:51,997 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-10-05 22:51:51,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:51:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-10-05 22:51:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:51:51,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:51,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:51,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:51:51,999 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:51,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:51,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-10-05 22:51:51,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571930331] [2020-10-05 22:51:52,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571930331] [2020-10-05 22:51:52,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:51:52,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622050702] [2020-10-05 22:51:52,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:51:52,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:51:52,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:51:52,046 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-10-05 22:51:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,092 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-10-05 22:51:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:51:52,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-05 22:51:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,095 INFO L225 Difference]: With dead ends: 556 [2020-10-05 22:51:52,095 INFO L226 Difference]: Without dead ends: 262 [2020-10-05 22:51:52,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:51:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-05 22:51:52,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-05 22:51:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-05 22:51:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-05 22:51:52,105 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-05 22:51:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,105 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-05 22:51:52,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:51:52,105 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-05 22:51:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 22:51:52,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:52,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:52,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:51:52,107 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:52,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:52,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-05 22:51:52,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660441054] [2020-10-05 22:51:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660441054] [2020-10-05 22:51:52,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:51:52,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048364752] [2020-10-05 22:51:52,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:51:52,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:51:52,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:51:52,187 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-10-05 22:51:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,230 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-10-05 22:51:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:51:52,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-05 22:51:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,232 INFO L225 Difference]: With dead ends: 319 [2020-10-05 22:51:52,233 INFO L226 Difference]: Without dead ends: 238 [2020-10-05 22:51:52,233 INFO L675 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 [2020-10-05 22:51:52,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-05 22:51:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-05 22:51:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-05 22:51:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-10-05 22:51:52,241 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-10-05 22:51:52,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,241 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-10-05 22:51:52,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:51:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-10-05 22:51:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:51:52,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:52,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:52,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:51:52,243 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:52,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:52,243 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-10-05 22:51:52,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091447230] [2020-10-05 22:51:52,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091447230] [2020-10-05 22:51:52,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:51:52,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937205812] [2020-10-05 22:51:52,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:51:52,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:51:52,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:51:52,310 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-10-05 22:51:52,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,373 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-10-05 22:51:52,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:51:52,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-05 22:51:52,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,375 INFO L225 Difference]: With dead ends: 247 [2020-10-05 22:51:52,375 INFO L226 Difference]: Without dead ends: 182 [2020-10-05 22:51:52,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:51:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-05 22:51:52,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-05 22:51:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-05 22:51:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-05 22:51:52,382 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-10-05 22:51:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,382 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-05 22:51:52,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:51:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-05 22:51:52,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:51:52,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:52,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:52,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:51:52,383 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:52,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:52,384 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-05 22:51:52,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184087270] [2020-10-05 22:51:52,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184087270] [2020-10-05 22:51:52,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 22:51:52,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731595875] [2020-10-05 22:51:52,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:51:52,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:51:52,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:51:52,448 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-10-05 22:51:52,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,526 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-05 22:51:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:51:52,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-05 22:51:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,528 INFO L225 Difference]: With dead ends: 165 [2020-10-05 22:51:52,528 INFO L226 Difference]: Without dead ends: 132 [2020-10-05 22:51:52,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:51:52,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-05 22:51:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-05 22:51:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-05 22:51:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-05 22:51:52,533 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-05 22:51:52,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,534 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-05 22:51:52,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:51:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-05 22:51:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:51:52,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:52,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:52,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:51:52,535 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:52,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-05 22:51:52,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331354414] [2020-10-05 22:51:52,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331354414] [2020-10-05 22:51:52,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:51:52,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261466211] [2020-10-05 22:51:52,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:51:52,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:51:52,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:51:52,615 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-10-05 22:51:52,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,690 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-05 22:51:52,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 22:51:52,691 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-05 22:51:52,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,692 INFO L225 Difference]: With dead ends: 121 [2020-10-05 22:51:52,692 INFO L226 Difference]: Without dead ends: 112 [2020-10-05 22:51:52,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:51:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-05 22:51:52,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-05 22:51:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-05 22:51:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-05 22:51:52,697 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-05 22:51:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,698 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-05 22:51:52,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:51:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-05 22:51:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 22:51:52,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:52,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:52,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:51:52,699 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:52,700 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-05 22:51:52,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141741409] [2020-10-05 22:51:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141741409] [2020-10-05 22:51:52,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:51:52,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066006265] [2020-10-05 22:51:52,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:51:52,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:51:52,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:51:52,775 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-05 22:51:52,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,815 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-05 22:51:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:51:52,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-05 22:51:52,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,816 INFO L225 Difference]: With dead ends: 146 [2020-10-05 22:51:52,817 INFO L226 Difference]: Without dead ends: 52 [2020-10-05 22:51:52,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:51:52,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-05 22:51:52,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-05 22:51:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-05 22:51:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-05 22:51:52,821 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-05 22:51:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,822 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-05 22:51:52,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:51:52,822 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-05 22:51:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-05 22:51:52,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:51:52,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:51:52,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:51:52,823 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:51:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:51:52,824 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-05 22:51:52,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:51:52,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120646343] [2020-10-05 22:51:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:51:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:51:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:51:52,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120646343] [2020-10-05 22:51:52,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:51:52,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:51:52,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585520392] [2020-10-05 22:51:52,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:51:52,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:51:52,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:51:52,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:51:52,888 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-05 22:51:52,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:51:52,921 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-05 22:51:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:51:52,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-05 22:51:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:51:52,922 INFO L225 Difference]: With dead ends: 51 [2020-10-05 22:51:52,922 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:51:52,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:51:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:51:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:51:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:51:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:51:52,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-05 22:51:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:51:52,924 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:51:52,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:51:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:51:52,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:51:52,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:51:52,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:51:52 BasicIcfg [2020-10-05 22:51:52,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:51:52,932 INFO L168 Benchmark]: Toolchain (without parser) took 5222.65 ms. Allocated memory was 141.0 MB in the beginning and 287.8 MB in the end (delta: 146.8 MB). Free memory was 101.2 MB in the beginning and 195.7 MB in the end (delta: -94.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,934 INFO L168 Benchmark]: CDTParser took 1.58 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.78 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 162.1 MB in the end (delta: -61.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.65 ms. Allocated memory is still 205.0 MB. Free memory was 162.1 MB in the beginning and 159.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,944 INFO L168 Benchmark]: Boogie Preprocessor took 33.36 ms. Allocated memory is still 205.0 MB. Free memory was 159.3 MB in the beginning and 157.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,946 INFO L168 Benchmark]: RCFGBuilder took 479.39 ms. Allocated memory is still 205.0 MB. Free memory was 157.4 MB in the beginning and 133.8 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,950 INFO L168 Benchmark]: TraceAbstraction took 3982.81 ms. Allocated memory was 205.0 MB in the beginning and 287.8 MB in the end (delta: 82.8 MB). Free memory was 132.9 MB in the beginning and 195.7 MB in the end (delta: -62.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:51:52,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.58 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.78 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 162.1 MB in the end (delta: -61.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.65 ms. Allocated memory is still 205.0 MB. Free memory was 162.1 MB in the beginning and 159.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.36 ms. Allocated memory is still 205.0 MB. Free memory was 159.3 MB in the beginning and 157.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.39 ms. Allocated memory is still 205.0 MB. Free memory was 157.4 MB in the beginning and 133.8 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3982.81 ms. Allocated memory was 205.0 MB in the beginning and 287.8 MB in the end (delta: 82.8 MB). Free memory was 132.9 MB in the beginning and 195.7 MB in the end (delta: -62.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...