/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:18:56,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:18:56,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:18:56,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:18:56,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:18:56,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:18:56,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:18:56,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:18:56,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:18:56,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:18:56,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:18:56,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:18:56,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:18:56,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:18:56,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:18:56,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:18:56,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:18:56,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:18:56,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:18:56,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:18:56,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:18:56,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:18:56,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:18:56,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:18:56,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:18:56,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:18:56,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:18:56,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:18:56,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:18:56,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:18:56,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:18:56,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:18:56,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:18:56,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:18:56,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:18:56,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:18:56,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:18:56,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:18:56,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:18:56,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:18:56,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:18:56,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:18:56,636 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:18:56,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:18:56,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:18:56,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:18:56,640 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:18:56,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:18:56,641 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:18:56,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:18:56,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:18:56,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:18:56,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:18:56,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:18:56,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:18:56,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:18:56,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:18:56,642 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:18:56,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:18:56,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:18:56,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:18:56,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:18:56,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:18:56,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:18:56,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:18:56,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:18:56,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:18:56,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:18:56,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:18:56,645 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:18:56,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:18:56,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:18:56,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:18:56,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:18:56,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:18:56,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:18:56,913 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:18:56,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2019-12-27 07:18:56,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcff68cde/177907f7b9c44fe093e420800f723f2e/FLAG1d65e242d [2019-12-27 07:18:57,528 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:18:57,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2019-12-27 07:18:57,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcff68cde/177907f7b9c44fe093e420800f723f2e/FLAG1d65e242d [2019-12-27 07:18:57,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcff68cde/177907f7b9c44fe093e420800f723f2e [2019-12-27 07:18:57,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:18:57,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:18:57,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:18:57,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:18:57,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:18:57,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:18:57" (1/1) ... [2019-12-27 07:18:57,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115eaeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:57, skipping insertion in model container [2019-12-27 07:18:57,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:18:57" (1/1) ... [2019-12-27 07:18:57,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:18:57,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:18:58,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:18:58,369 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:18:58,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:18:58,502 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:18:58,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58 WrapperNode [2019-12-27 07:18:58,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:18:58,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:18:58,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:18:58,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:18:58,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:18:58,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:18:58,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:18:58,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:18:58,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (1/1) ... [2019-12-27 07:18:58,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:18:58,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:18:58,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:18:58,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:18:58,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (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 [2019-12-27 07:18:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:18:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:18:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:18:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:18:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:18:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:18:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:18:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:18:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:18:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:18:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:18:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:18:58,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:18:58,653 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:18:58,981 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:18:58,982 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:18:58,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:18:58 BoogieIcfgContainer [2019-12-27 07:18:58,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:18:58,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:18:58,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:18:58,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:18:58,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:18:57" (1/3) ... [2019-12-27 07:18:58,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b298a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:18:58, skipping insertion in model container [2019-12-27 07:18:58,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:18:58" (2/3) ... [2019-12-27 07:18:58,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b298a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:18:58, skipping insertion in model container [2019-12-27 07:18:58,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:18:58" (3/3) ... [2019-12-27 07:18:58,991 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2019-12-27 07:18:59,001 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:18:59,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:18:59,009 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:18:59,010 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:18:59,039 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,039 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,039 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,040 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,040 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,040 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,041 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,041 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,041 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,041 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,042 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,042 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,043 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,043 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,043 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,044 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,047 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,048 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,054 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,054 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,055 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,055 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,058 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,058 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,058 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,058 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:18:59,079 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:18:59,094 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:18:59,095 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:18:59,095 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:18:59,095 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:18:59,095 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:18:59,095 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:18:59,095 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:18:59,096 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:18:59,108 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:18:59,109 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:18:59,155 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:18:59,155 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:18:59,162 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:18:59,165 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:18:59,185 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:18:59,185 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:18:59,187 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:18:59,189 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:18:59,190 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:19:00,546 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 07:19:00,633 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-27 07:19:00,633 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 07:19:00,637 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:19:00,652 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:19:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:19:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:19:00,671 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:19:00,673 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:19:00,673 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:19:00,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:19:00,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-27 07:19:00,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:19:00,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681255021] [2019-12-27 07:19:00,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:19:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:19:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:19:00,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681255021] [2019-12-27 07:19:00,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:19:00,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:19:00,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760131261] [2019-12-27 07:19:00,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:19:00,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:19:00,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:19:00,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:19:01,000 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:19:01,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:19:01,037 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 07:19:01,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:19:01,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:19:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:19:01,051 INFO L225 Difference]: With dead ends: 50 [2019-12-27 07:19:01,052 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:19:01,053 INFO L631 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 [2019-12-27 07:19:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:19:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:19:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:19:01,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:19:01,092 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:19:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:19:01,093 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:19:01,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:19:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:19:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:19:01,094 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:19:01,094 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:19:01,095 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:19:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:19:01,095 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-27 07:19:01,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:19:01,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610818731] [2019-12-27 07:19:01,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:19:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:19:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:19:01,196 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610818731] [2019-12-27 07:19:01,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:19:01,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:19:01,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427619883] [2019-12-27 07:19:01,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:19:01,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:19:01,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:19:01,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:19:01,201 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 07:19:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:19:01,208 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 07:19:01,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:19:01,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:19:01,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:19:01,210 INFO L225 Difference]: With dead ends: 32 [2019-12-27 07:19:01,210 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 07:19:01,211 INFO L631 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 [2019-12-27 07:19:01,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 07:19:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 07:19:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 07:19:01,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 07:19:01,217 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 07:19:01,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:19:01,217 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 07:19:01,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:19:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 07:19:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:19:01,218 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:19:01,219 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:19:01,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:19:01,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:19:01,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-27 07:19:01,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:19:01,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261184243] [2019-12-27 07:19:01,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:19:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:19:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:19:01,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261184243] [2019-12-27 07:19:01,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:19:01,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:19:01,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126959052] [2019-12-27 07:19:01,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:19:01,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:19:01,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:19:01,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:19:01,332 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 4 states. [2019-12-27 07:19:01,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:19:01,360 INFO L93 Difference]: Finished difference Result 37 states and 63 transitions. [2019-12-27 07:19:01,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:19:01,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 07:19:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:19:01,361 INFO L225 Difference]: With dead ends: 37 [2019-12-27 07:19:01,361 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 07:19:01,362 INFO L631 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 [2019-12-27 07:19:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 07:19:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 07:19:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 07:19:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 39 transitions. [2019-12-27 07:19:01,366 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 39 transitions. Word has length 10 [2019-12-27 07:19:01,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:19:01,366 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 39 transitions. [2019-12-27 07:19:01,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:19:01,367 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2019-12-27 07:19:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:19:01,367 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:19:01,368 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:19:01,368 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:19:01,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:19:01,368 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-27 07:19:01,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:19:01,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887032567] [2019-12-27 07:19:01,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:19:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:19:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:19:01,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887032567] [2019-12-27 07:19:01,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:19:01,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:19:01,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002466989] [2019-12-27 07:19:01,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:19:01,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:19:01,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:19:01,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:19:01,429 INFO L87 Difference]: Start difference. First operand 25 states and 39 transitions. Second operand 4 states. [2019-12-27 07:19:01,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:19:01,456 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2019-12-27 07:19:01,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:19:01,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:19:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:19:01,457 INFO L225 Difference]: With dead ends: 29 [2019-12-27 07:19:01,457 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 07:19:01,458 INFO L631 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 [2019-12-27 07:19:01,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 07:19:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 07:19:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 07:19:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 07:19:01,462 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 07:19:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:19:01,463 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 07:19:01,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:19:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 07:19:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:19:01,464 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:19:01,464 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:19:01,464 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:19:01,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:19:01,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1231559623, now seen corresponding path program 2 times [2019-12-27 07:19:01,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:19:01,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646285602] [2019-12-27 07:19:01,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:19:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:19:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:19:01,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646285602] [2019-12-27 07:19:01,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:19:01,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:19:01,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727476197] [2019-12-27 07:19:01,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:19:01,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:19:01,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:19:01,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:19:01,540 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 07:19:01,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:19:01,554 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 07:19:01,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:19:01,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:19:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:19:01,554 INFO L225 Difference]: With dead ends: 14 [2019-12-27 07:19:01,554 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:19:01,555 INFO L631 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 [2019-12-27 07:19:01,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:19:01,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:19:01,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:19:01,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:19:01,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:19:01,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:19:01,557 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:19:01,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:19:01,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:19:01,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:19:01,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:19:01 BasicIcfg [2019-12-27 07:19:01,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:19:01,564 INFO L168 Benchmark]: Toolchain (without parser) took 3737.24 ms. Allocated memory was 137.4 MB in the beginning and 247.5 MB in the end (delta: 110.1 MB). Free memory was 100.8 MB in the beginning and 163.3 MB in the end (delta: -62.5 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,564 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.97 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 159.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.57 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,567 INFO L168 Benchmark]: Boogie Preprocessor took 26.86 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,568 INFO L168 Benchmark]: RCFGBuilder took 402.45 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,569 INFO L168 Benchmark]: TraceAbstraction took 2577.36 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 134.8 MB in the beginning and 163.3 MB in the end (delta: -28.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:19:01,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.97 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 159.2 MB in the end (delta: -58.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.57 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.86 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.45 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2577.36 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 134.8 MB in the beginning and 163.3 MB in the end (delta: -28.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 27 SDslu, 26 SDs, 0 SdLazy, 23 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...