/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:04:44,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:04:44,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:04:44,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:04:44,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:04:44,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:04:44,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:04:44,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:04:44,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:04:44,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:04:44,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:04:44,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:04:44,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:04:44,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:04:44,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:04:44,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:04:44,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:04:44,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:04:44,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:04:44,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:04:44,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:04:44,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:04:44,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:04:44,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:04:44,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:04:44,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:04:44,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:04:44,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:04:44,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:04:44,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:04:44,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:04:44,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:04:44,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:04:44,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:04:44,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:04:44,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:04:44,533 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-WP.epf [2020-10-06 01:04:44,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:04:44,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:04:44,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:04:44,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:04:44,558 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:04:44,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:04:44,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:04:44,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:04:44,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:04:44,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:04:44,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:04:44,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:04:44,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:04:44,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:04:44,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:04:44,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:04:44,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:04:44,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:04:44,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:04:44,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:04:44,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:04:44,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:04:44,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:04:44,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:04:44,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:04:44,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:04:44,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:04:44,569 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:04:44,569 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:04:44,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:04:44,569 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:04:44,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:04:44,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:04:44,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:04:44,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:04:44,921 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:04:44,923 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2020-10-06 01:04:44,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa744f67a/24ffe8e85ec34416a7352719d1c89967/FLAG2d9253160 [2020-10-06 01:04:45,550 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:04:45,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.opt.i [2020-10-06 01:04:45,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa744f67a/24ffe8e85ec34416a7352719d1c89967/FLAG2d9253160 [2020-10-06 01:04:45,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa744f67a/24ffe8e85ec34416a7352719d1c89967 [2020-10-06 01:04:45,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:04:45,827 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:04:45,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:04:45,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:04:45,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:04:45,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:04:45" (1/1) ... [2020-10-06 01:04:45,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c1db2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:45, skipping insertion in model container [2020-10-06 01:04:45,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:04:45" (1/1) ... [2020-10-06 01:04:45,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:04:45,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:04:46,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:04:46,334 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:04:46,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:04:46,562 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:04:46,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46 WrapperNode [2020-10-06 01:04:46,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:04:46,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:04:46,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:04:46,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:04:46,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:04:46,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:04:46,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:04:46,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:04:46,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (1/1) ... [2020-10-06 01:04:46,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:04:46,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:04:46,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:04:46,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:04:46,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (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 [2020-10-06 01:04:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:04:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:04:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:04:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:04:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:04:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:04:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:04:46,716 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:04:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:04:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:04:46,719 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:04:47,087 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:04:47,087 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:04:47,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:04:47 BoogieIcfgContainer [2020-10-06 01:04:47,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:04:47,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:04:47,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:04:47,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:04:47,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:04:45" (1/3) ... [2020-10-06 01:04:47,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec76930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:04:47, skipping insertion in model container [2020-10-06 01:04:47,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:04:46" (2/3) ... [2020-10-06 01:04:47,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec76930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:04:47, skipping insertion in model container [2020-10-06 01:04:47,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:04:47" (3/3) ... [2020-10-06 01:04:47,099 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.opt.i [2020-10-06 01:04:47,109 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:04:47,110 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:04:47,118 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:04:47,119 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:04:47,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,149 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,152 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,154 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,157 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,176 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:04:47,197 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:04:47,219 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:04:47,219 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:04:47,219 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:04:47,219 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:04:47,220 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:04:47,220 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:04:47,220 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:04:47,220 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:04:47,233 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 67 transitions, 149 flow [2020-10-06 01:04:47,235 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 75 places, 67 transitions, 149 flow [2020-10-06 01:04:47,274 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-10-06 01:04:47,274 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:04:47,279 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-06 01:04:47,283 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 75 places, 67 transitions, 149 flow [2020-10-06 01:04:47,305 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2020-10-06 01:04:47,306 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:04:47,307 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-06 01:04:47,310 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-10-06 01:04:47,311 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:04:48,686 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1818 [2020-10-06 01:04:48,687 INFO L214 etLargeBlockEncoding]: Total number of compositions: 52 [2020-10-06 01:04:48,691 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-06 01:04:48,711 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-06 01:04:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-06 01:04:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:04:48,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:48,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:48,724 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:48,731 INFO L82 PathProgramCache]: Analyzing trace with hash -540517404, now seen corresponding path program 1 times [2020-10-06 01:04:48,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:48,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829678951] [2020-10-06 01:04:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:49,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829678951] [2020-10-06 01:04:49,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:49,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:04:49,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1672019899] [2020-10-06 01:04:49,006 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:49,008 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:49,023 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:04:49,023 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:49,028 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:49,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:04:49,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:49,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:04:49,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:49,045 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-06 01:04:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:49,081 INFO L93 Difference]: Finished difference Result 220 states and 612 transitions. [2020-10-06 01:04:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:04:49,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-06 01:04:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:49,097 INFO L225 Difference]: With dead ends: 220 [2020-10-06 01:04:49,098 INFO L226 Difference]: Without dead ends: 172 [2020-10-06 01:04:49,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-06 01:04:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-10-06 01:04:49,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-06 01:04:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 460 transitions. [2020-10-06 01:04:49,163 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 460 transitions. Word has length 8 [2020-10-06 01:04:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:49,165 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 460 transitions. [2020-10-06 01:04:49,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:04:49,165 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 460 transitions. [2020-10-06 01:04:49,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:04:49,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:49,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:49,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:04:49,167 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:49,168 INFO L82 PathProgramCache]: Analyzing trace with hash 533202091, now seen corresponding path program 1 times [2020-10-06 01:04:49,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:49,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394558160] [2020-10-06 01:04:49,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:49,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394558160] [2020-10-06 01:04:49,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:49,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:04:49,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1263103475] [2020-10-06 01:04:49,252 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:49,254 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:49,259 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-10-06 01:04:49,260 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:49,306 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:49,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:04:49,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:49,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:04:49,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:49,309 INFO L87 Difference]: Start difference. First operand 172 states and 460 transitions. Second operand 3 states. [2020-10-06 01:04:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:49,318 INFO L93 Difference]: Finished difference Result 163 states and 430 transitions. [2020-10-06 01:04:49,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:04:49,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:04:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:49,322 INFO L225 Difference]: With dead ends: 163 [2020-10-06 01:04:49,322 INFO L226 Difference]: Without dead ends: 163 [2020-10-06 01:04:49,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:04:49,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-06 01:04:49,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-10-06 01:04:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-06 01:04:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 430 transitions. [2020-10-06 01:04:49,344 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 430 transitions. Word has length 9 [2020-10-06 01:04:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:49,344 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 430 transitions. [2020-10-06 01:04:49,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:04:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 430 transitions. [2020-10-06 01:04:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:04:49,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:49,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:49,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:04:49,347 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash -650627585, now seen corresponding path program 1 times [2020-10-06 01:04:49,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:49,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510476636] [2020-10-06 01:04:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:49,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510476636] [2020-10-06 01:04:49,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:49,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:49,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1373613586] [2020-10-06 01:04:49,464 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:49,466 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:49,468 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 27 transitions. [2020-10-06 01:04:49,468 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:49,532 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:49,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:49,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:49,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:49,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:49,533 INFO L87 Difference]: Start difference. First operand 163 states and 430 transitions. Second operand 4 states. [2020-10-06 01:04:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:49,560 INFO L93 Difference]: Finished difference Result 218 states and 560 transitions. [2020-10-06 01:04:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:04:49,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 01:04:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:49,562 INFO L225 Difference]: With dead ends: 218 [2020-10-06 01:04:49,562 INFO L226 Difference]: Without dead ends: 146 [2020-10-06 01:04:49,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-06 01:04:49,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-06 01:04:49,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-06 01:04:49,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 370 transitions. [2020-10-06 01:04:49,576 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 370 transitions. Word has length 10 [2020-10-06 01:04:49,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:49,576 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 370 transitions. [2020-10-06 01:04:49,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:49,577 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 370 transitions. [2020-10-06 01:04:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:04:49,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:04:49,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:04:49,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:04:49,579 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:04:49,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:04:49,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1306080051, now seen corresponding path program 1 times [2020-10-06 01:04:49,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:04:49,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797110746] [2020-10-06 01:04:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:04:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:04:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:04:49,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797110746] [2020-10-06 01:04:49,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:04:49,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:04:49,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [81501785] [2020-10-06 01:04:49,674 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:04:49,675 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:04:49,678 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-10-06 01:04:49,678 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:04:49,701 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:49,723 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:49,744 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:49,760 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:49,797 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:04:49,818 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:04:49,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:04:49,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:04:49,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:04:49,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:04:49,820 INFO L87 Difference]: Start difference. First operand 146 states and 370 transitions. Second operand 4 states. [2020-10-06 01:04:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:04:49,853 INFO L93 Difference]: Finished difference Result 118 states and 288 transitions. [2020-10-06 01:04:49,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:04:49,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:04:49,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:04:49,854 INFO L225 Difference]: With dead ends: 118 [2020-10-06 01:04:49,854 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:04:49,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:04:49,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:04:49,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:04:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:04:49,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:04:49,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-06 01:04:49,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:04:49,856 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:04:49,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:04:49,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:04:49,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:04:49,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:04:49,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:04:49 BasicIcfg [2020-10-06 01:04:49,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:04:49,864 INFO L168 Benchmark]: Toolchain (without parser) took 4036.50 ms. Allocated memory was 136.8 MB in the beginning and 258.5 MB in the end (delta: 121.6 MB). Free memory was 98.0 MB in the beginning and 194.9 MB in the end (delta: -96.9 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,865 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.05 ms. Allocated memory was 136.8 MB in the beginning and 222.3 MB in the end (delta: 85.5 MB). Free memory was 97.7 MB in the beginning and 188.1 MB in the end (delta: -90.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 222.3 MB. Free memory was 188.1 MB in the beginning and 185.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,867 INFO L168 Benchmark]: Boogie Preprocessor took 26.90 ms. Allocated memory is still 222.3 MB. Free memory was 185.4 MB in the beginning and 184.4 MB in the end (delta: 912.3 kB). Peak memory consumption was 912.3 kB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,868 INFO L168 Benchmark]: RCFGBuilder took 448.31 ms. Allocated memory is still 222.3 MB. Free memory was 184.4 MB in the beginning and 161.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,869 INFO L168 Benchmark]: TraceAbstraction took 2770.09 ms. Allocated memory was 222.3 MB in the beginning and 258.5 MB in the end (delta: 36.2 MB). Free memory was 161.3 MB in the beginning and 194.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:04:49,873 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.05 ms. Allocated memory was 136.8 MB in the beginning and 222.3 MB in the end (delta: 85.5 MB). Free memory was 97.7 MB in the beginning and 188.1 MB in the end (delta: -90.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 222.3 MB. Free memory was 188.1 MB in the beginning and 185.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.90 ms. Allocated memory is still 222.3 MB. Free memory was 185.4 MB in the beginning and 184.4 MB in the end (delta: 912.3 kB). Peak memory consumption was 912.3 kB. Max. memory is 7.1 GB. * RCFGBuilder took 448.31 ms. Allocated memory is still 222.3 MB. Free memory was 184.4 MB in the beginning and 161.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2770.09 ms. Allocated memory was 222.3 MB in the beginning and 258.5 MB in the end (delta: 36.2 MB). Free memory was 161.3 MB in the beginning and 194.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 75 ProgramPointsBefore, 30 ProgramPointsAfterwards, 67 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 576 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1818 CheckedPairsTotal, 52 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 4 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 63 SDtfs, 41 SDslu, 62 SDs, 0 SdLazy, 31 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...