/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/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:47:28,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:47:28,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:47:28,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:47:28,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:47:28,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:47:28,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:47:28,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:47:28,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:47:28,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:47:28,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:47:28,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:47:28,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:47:28,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:47:28,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:47:28,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:47:28,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:47:28,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:47:28,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:47:28,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:47:28,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:47:28,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:47:28,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:47:28,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:47:28,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:47:28,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:47:28,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:47:28,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:47:28,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:47:28,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:47:28,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:47:28,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:47:28,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:47:28,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:47:28,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:47:28,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:47:28,531 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 22:47:28,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:47:28,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:47:28,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:47:28,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:47:28,576 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:47:28,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:47:28,577 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:47:28,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:47:28,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:47:28,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:47:28,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:47:28,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:47:28,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:47:28,580 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:47:28,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:47:28,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:47:28,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:47:28,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:47:28,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:47:28,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:47:28,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:47:28,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:47:28,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:47:28,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:47:28,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:47:28,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:47:28,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:47:28,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:47:28,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:47:28,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:47:28,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:47:28,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:47:28,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:47:28,898 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:47:28,898 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:47:28,899 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-10-05 22:47:28,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa209db42/8e63427783204804bd04825aba960fae/FLAGb1b7e7482 [2020-10-05 22:47:29,478 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:47:29,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-10-05 22:47:29,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa209db42/8e63427783204804bd04825aba960fae/FLAGb1b7e7482 [2020-10-05 22:47:29,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa209db42/8e63427783204804bd04825aba960fae [2020-10-05 22:47:29,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:47:29,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:47:29,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:47:29,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:47:29,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:47:29,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:47:29" (1/1) ... [2020-10-05 22:47:29,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad1aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:29, skipping insertion in model container [2020-10-05 22:47:29,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:47:29" (1/1) ... [2020-10-05 22:47:29,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:47:29,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:47:30,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:47:30,369 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:47:30,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:47:30,488 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:47:30,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30 WrapperNode [2020-10-05 22:47:30,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:47:30,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:47:30,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:47:30,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:47:30,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:47:30,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:47:30,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:47:30,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:47:30,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (1/1) ... [2020-10-05 22:47:30,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:47:30,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:47:30,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:47:30,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:47:30,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (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 22:47:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:47:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:47:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:47:30,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:47:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:47:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:47:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:47:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:47:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:47:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:47:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:47:30,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:47:30,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:47:30,638 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 22:47:31,001 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:47:31,002 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:47:31,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:47:31 BoogieIcfgContainer [2020-10-05 22:47:31,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:47:31,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:47:31,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:47:31,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:47:31,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:47:29" (1/3) ... [2020-10-05 22:47:31,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec5faa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:47:31, skipping insertion in model container [2020-10-05 22:47:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:47:30" (2/3) ... [2020-10-05 22:47:31,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec5faa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:47:31, skipping insertion in model container [2020-10-05 22:47:31,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:47:31" (3/3) ... [2020-10-05 22:47:31,017 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2020-10-05 22:47:31,025 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:47:31,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:47:31,032 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:47:31,033 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:47:31,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,065 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,066 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,067 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,069 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,075 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,090 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,091 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:47:31,124 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:47:31,145 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:47:31,145 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:47:31,146 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:47:31,146 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:47:31,146 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:47:31,146 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:47:31,146 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:47:31,147 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:47:31,163 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-05 22:47:31,165 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 22:47:31,214 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 22:47:31,215 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:47:31,220 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:47:31,223 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 22:47:31,246 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 22:47:31,246 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:47:31,247 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 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. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 22:47:31,249 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 22:47:31,251 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:47:32,935 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-10-05 22:47:32,936 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-10-05 22:47:32,940 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 22:47:32,966 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 22:47:32,969 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 22:47:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:47:32,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:32,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:32,979 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:32,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:32,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-05 22:47:32,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:32,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933222688] [2020-10-05 22:47:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:33,193 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 22:47:33,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933222688] [2020-10-05 22:47:33,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:33,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:47:33,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951732317] [2020-10-05 22:47:33,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:47:33,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:33,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:47:33,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:47:33,219 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 22:47:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:33,272 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 22:47:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:47:33,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:47:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:33,290 INFO L225 Difference]: With dead ends: 282 [2020-10-05 22:47:33,290 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 22:47:33,292 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 [2020-10-05 22:47:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 22:47:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 22:47:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 22:47:33,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 22:47:33,362 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 22:47:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:33,363 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 22:47:33,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:47:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 22:47:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:47:33,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:33,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:33,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:47:33,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:33,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-05 22:47:33,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:33,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847079910] [2020-10-05 22:47:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:33,471 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 22:47:33,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847079910] [2020-10-05 22:47:33,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:33,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:47:33,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206363432] [2020-10-05 22:47:33,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:33,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:33,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:33,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:33,475 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-05 22:47:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:33,510 INFO L93 Difference]: Finished difference Result 290 states and 762 transitions. [2020-10-05 22:47:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:47:33,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:47:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:33,514 INFO L225 Difference]: With dead ends: 290 [2020-10-05 22:47:33,514 INFO L226 Difference]: Without dead ends: 164 [2020-10-05 22:47:33,515 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 22:47:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-05 22:47:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-05 22:47:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-05 22:47:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 424 transitions. [2020-10-05 22:47:33,534 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 424 transitions. Word has length 9 [2020-10-05 22:47:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:33,535 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 424 transitions. [2020-10-05 22:47:33,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 424 transitions. [2020-10-05 22:47:33,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:47:33,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:33,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:33,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:47:33,537 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:33,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1379691760, now seen corresponding path program 1 times [2020-10-05 22:47:33,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:33,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942569043] [2020-10-05 22:47:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:33,599 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 22:47:33,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942569043] [2020-10-05 22:47:33,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:33,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:47:33,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393394455] [2020-10-05 22:47:33,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:33,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:33,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:33,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:33,602 INFO L87 Difference]: Start difference. First operand 164 states and 424 transitions. Second operand 4 states. [2020-10-05 22:47:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:33,637 INFO L93 Difference]: Finished difference Result 244 states and 582 transitions. [2020-10-05 22:47:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:47:33,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 22:47:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:33,640 INFO L225 Difference]: With dead ends: 244 [2020-10-05 22:47:33,640 INFO L226 Difference]: Without dead ends: 128 [2020-10-05 22:47:33,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 22:47:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-05 22:47:33,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2020-10-05 22:47:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-05 22:47:33,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 268 transitions. [2020-10-05 22:47:33,651 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 268 transitions. Word has length 11 [2020-10-05 22:47:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:33,652 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 268 transitions. [2020-10-05 22:47:33,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:33,652 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 268 transitions. [2020-10-05 22:47:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:47:33,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:33,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:33,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:47:33,654 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:33,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:33,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-10-05 22:47:33,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:33,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909365609] [2020-10-05 22:47:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:33,719 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 22:47:33,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909365609] [2020-10-05 22:47:33,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:33,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:47:33,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598370772] [2020-10-05 22:47:33,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:47:33,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:33,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:47:33,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:47:33,721 INFO L87 Difference]: Start difference. First operand 116 states and 268 transitions. Second operand 3 states. [2020-10-05 22:47:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:33,726 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-05 22:47:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:47:33,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:47:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:33,728 INFO L225 Difference]: With dead ends: 110 [2020-10-05 22:47:33,729 INFO L226 Difference]: Without dead ends: 110 [2020-10-05 22:47:33,729 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 [2020-10-05 22:47:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-05 22:47:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-05 22:47:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-05 22:47:33,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-05 22:47:33,737 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 11 [2020-10-05 22:47:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:33,738 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-05 22:47:33,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:47:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-05 22:47:33,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:47:33,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:33,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:33,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:47:33,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:33,740 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-10-05 22:47:33,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:33,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731845329] [2020-10-05 22:47:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:33,816 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 22:47:33,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731845329] [2020-10-05 22:47:33,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:33,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:47:33,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777262698] [2020-10-05 22:47:33,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:33,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:33,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:33,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:33,819 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 4 states. [2020-10-05 22:47:33,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:33,839 INFO L93 Difference]: Finished difference Result 112 states and 234 transitions. [2020-10-05 22:47:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:47:33,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:47:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:33,842 INFO L225 Difference]: With dead ends: 112 [2020-10-05 22:47:33,842 INFO L226 Difference]: Without dead ends: 46 [2020-10-05 22:47:33,843 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 22:47:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-05 22:47:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-05 22:47:33,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-05 22:47:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 84 transitions. [2020-10-05 22:47:33,851 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 84 transitions. Word has length 12 [2020-10-05 22:47:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:33,851 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 84 transitions. [2020-10-05 22:47:33,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 84 transitions. [2020-10-05 22:47:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:47:33,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:47:33,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:47:33,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:47:33,857 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:47:33,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:47:33,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 1 times [2020-10-05 22:47:33,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:47:33,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10295014] [2020-10-05 22:47:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:47:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:47:33,919 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 22:47:33,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10295014] [2020-10-05 22:47:33,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:47:33,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:47:33,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957019662] [2020-10-05 22:47:33,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:47:33,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:47:33,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:47:33,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:47:33,922 INFO L87 Difference]: Start difference. First operand 46 states and 84 transitions. Second operand 4 states. [2020-10-05 22:47:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:47:33,938 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-10-05 22:47:33,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:47:33,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 22:47:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:47:33,940 INFO L225 Difference]: With dead ends: 34 [2020-10-05 22:47:33,940 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:47:33,940 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 22:47:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:47:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:47:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:47:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:47:33,941 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-05 22:47:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:47:33,942 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:47:33,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:47:33,942 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:47:33,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:47:33,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:47:33,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:47:33 BasicIcfg [2020-10-05 22:47:33,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:47:33,949 INFO L168 Benchmark]: Toolchain (without parser) took 4160.36 ms. Allocated memory was 145.2 MB in the beginning and 249.0 MB in the end (delta: 103.8 MB). Free memory was 99.8 MB in the beginning and 198.9 MB in the end (delta: -99.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:33,950 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:47:33,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.89 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 159.4 MB in the end (delta: -59.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:33,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.69 ms. Allocated memory is still 202.9 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:33,953 INFO L168 Benchmark]: Boogie Preprocessor took 27.76 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:33,954 INFO L168 Benchmark]: RCFGBuilder took 435.05 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 133.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:47:33,954 INFO L168 Benchmark]: TraceAbstraction took 2940.46 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 133.0 MB in the beginning and 198.9 MB in the end (delta: -65.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 22:47:33,959 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 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.89 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 159.4 MB in the end (delta: -59.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.69 ms. Allocated memory is still 202.9 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.76 ms. Allocated memory is still 202.9 MB. Free memory was 157.4 MB in the beginning and 156.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.05 ms. Allocated memory is still 202.9 MB. Free memory was 156.0 MB in the beginning and 133.6 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2940.46 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 133.0 MB in the beginning and 198.9 MB in the end (delta: -65.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 105 SDtfs, 84 SDslu, 96 SDs, 0 SdLazy, 37 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...