/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:40:48,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:40:48,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:40:48,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:40:48,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:40:48,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:40:48,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:40:48,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:40:48,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:40:48,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:40:48,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:40:48,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:40:48,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:40:48,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:40:48,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:40:48,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:40:48,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:40:48,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:40:48,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:40:48,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:40:48,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:40:48,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:40:48,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:40:48,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:40:48,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:40:48,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:40:48,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:40:48,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:40:48,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:40:48,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:40:48,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:40:48,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:40:48,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:40:48,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:40:48,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:40:48,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:40:48,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:40:48,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:40:48,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:40:48,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:40:48,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:40:48,613 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 07:40:48,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:40:48,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:40:48,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:40:48,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:40:48,634 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:40:48,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:40:48,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:40:48,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:40:48,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:40:48,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:40:48,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:40:48,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:40:48,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:40:48,637 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:40:48,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:40:48,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:40:48,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:40:48,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:40:48,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:40:48,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:40:48,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:40:48,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:40:48,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:40:48,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:40:48,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:40:48,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:40:48,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:40:48,640 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:40:48,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:40:48,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:40:48,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:40:48,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:40:48,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:40:48,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:40:48,965 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:40:48,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-27 07:40:49,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95a53f8c3/916f16484a764dd3b900ea33dbcd77d5/FLAG0889e8416 [2019-12-27 07:40:49,601 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:40:49,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-27 07:40:49,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95a53f8c3/916f16484a764dd3b900ea33dbcd77d5/FLAG0889e8416 [2019-12-27 07:40:49,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95a53f8c3/916f16484a764dd3b900ea33dbcd77d5 [2019-12-27 07:40:49,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:40:49,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:40:49,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:40:49,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:40:49,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:40:49,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:40:49" (1/1) ... [2019-12-27 07:40:49,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36036b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:49, skipping insertion in model container [2019-12-27 07:40:49,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:40:49" (1/1) ... [2019-12-27 07:40:49,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:40:49,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:40:50,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:40:50,448 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:40:50,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:40:50,591 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:40:50,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50 WrapperNode [2019-12-27 07:40:50,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:40:50,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:40:50,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:40:50,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:40:50,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:40:50,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:40:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:40:50,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:40:50,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (1/1) ... [2019-12-27 07:40:50,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:40:50,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:40:50,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:40:50,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:40:50,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (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 07:40:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:40:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:40:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:40:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:40:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:40:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:40:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:40:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:40:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:40:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:40:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:40:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:40:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:40:50,750 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 07:40:51,111 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:40:51,112 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:40:51,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:40:51 BoogieIcfgContainer [2019-12-27 07:40:51,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:40:51,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:40:51,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:40:51,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:40:51,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:40:49" (1/3) ... [2019-12-27 07:40:51,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3421c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:40:51, skipping insertion in model container [2019-12-27 07:40:51,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:40:50" (2/3) ... [2019-12-27 07:40:51,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3421c3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:40:51, skipping insertion in model container [2019-12-27 07:40:51,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:40:51" (3/3) ... [2019-12-27 07:40:51,122 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2019-12-27 07:40:51,133 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:40:51,133 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:40:51,141 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:40:51,142 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:40:51,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,171 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,171 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,172 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,173 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,173 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,174 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,174 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,179 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,180 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,180 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,180 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,183 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,184 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,184 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,184 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,187 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,188 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,188 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,188 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:40:51,208 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:40:51,227 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:40:51,227 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:40:51,227 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:40:51,227 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:40:51,228 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:40:51,228 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:40:51,228 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:40:51,228 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:40:51,242 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 07:40:51,244 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:40:51,290 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:40:51,291 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:40:51,301 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:40:51,303 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:40:51,322 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:40:51,322 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:40:51,324 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:40:51,325 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:40:51,326 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:40:52,690 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 07:40:52,843 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-27 07:40:52,843 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 07:40:52,847 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 07:40:52,857 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 07:40:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 07:40:52,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:40:52,866 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:52,867 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:52,867 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:52,873 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-27 07:40:52,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:52,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068166948] [2019-12-27 07:40:52,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:53,117 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 07:40:53,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068166948] [2019-12-27 07:40:53,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:53,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:40:53,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288242105] [2019-12-27 07:40:53,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:40:53,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:53,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:40:53,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:40:53,146 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 07:40:53,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:53,178 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 07:40:53,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:40:53,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:40:53,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:53,192 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:40:53,193 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:40:53,194 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 07:40:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:40:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:40:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:40:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:40:53,228 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:40:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:53,230 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:40:53,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:40:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:40:53,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:40:53,231 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:53,231 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:53,231 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash 116613460, now seen corresponding path program 1 times [2019-12-27 07:40:53,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:53,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053639151] [2019-12-27 07:40:53,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:53,316 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 07:40:53,317 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053639151] [2019-12-27 07:40:53,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:53,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:40:53,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978980273] [2019-12-27 07:40:53,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:40:53,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:53,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:40:53,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:40:53,320 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 07:40:53,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:53,326 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 07:40:53,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:40:53,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:40:53,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:53,328 INFO L225 Difference]: With dead ends: 32 [2019-12-27 07:40:53,328 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 07:40:53,329 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 07:40:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 07:40:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 07:40:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 07:40:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 07:40:53,335 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 07:40:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:53,336 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 07:40:53,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:40:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 07:40:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:40:53,337 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:53,337 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:53,337 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:53,338 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-27 07:40:53,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:53,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267805432] [2019-12-27 07:40:53,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:53,429 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 07:40:53,429 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267805432] [2019-12-27 07:40:53,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:53,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:40:53,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667463288] [2019-12-27 07:40:53,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:40:53,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:53,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:40:53,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:40:53,432 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 07:40:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:53,458 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 07:40:53,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:40:53,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:40:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:53,460 INFO L225 Difference]: With dead ends: 35 [2019-12-27 07:40:53,460 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 07:40:53,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:53,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 07:40:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 07:40:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 07:40:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 07:40:53,464 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 07:40:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:53,464 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 07:40:53,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:40:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 07:40:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:40:53,465 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:53,465 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:53,465 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:53,466 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-27 07:40:53,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:53,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963762481] [2019-12-27 07:40:53,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:53,533 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 07:40:53,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963762481] [2019-12-27 07:40:53,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:53,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:40:53,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615168479] [2019-12-27 07:40:53,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:40:53,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:53,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:40:53,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:40:53,537 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 07:40:53,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:53,572 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 07:40:53,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:40:53,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:40:53,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:53,573 INFO L225 Difference]: With dead ends: 23 [2019-12-27 07:40:53,574 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 07:40:53,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:40:53,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 07:40:53,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 07:40:53,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 07:40:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 07:40:53,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 07:40:53,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:53,577 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 07:40:53,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:40:53,578 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 07:40:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:40:53,578 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:40:53,578 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:40:53,579 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:40:53,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:40:53,579 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-27 07:40:53,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:40:53,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792916603] [2019-12-27 07:40:53,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:40:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:40:53,646 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 07:40:53,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792916603] [2019-12-27 07:40:53,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:40:53,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:40:53,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994928505] [2019-12-27 07:40:53,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:40:53,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:40:53,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:40:53,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:40:53,652 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 07:40:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:40:53,671 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 07:40:53,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:40:53,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:40:53,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:40:53,672 INFO L225 Difference]: With dead ends: 14 [2019-12-27 07:40:53,672 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:40:53,673 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 07:40:53,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:40:53,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:40:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:40:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:40:53,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:40:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:40:53,674 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:40:53,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:40:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:40:53,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:40:53,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:40:53 BasicIcfg [2019-12-27 07:40:53,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:40:53,680 INFO L168 Benchmark]: Toolchain (without parser) took 3795.84 ms. Allocated memory was 143.1 MB in the beginning and 251.1 MB in the end (delta: 108.0 MB). Free memory was 98.3 MB in the beginning and 168.0 MB in the end (delta: -69.7 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:53,681 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 143.1 MB. Free memory is still 118.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 07:40:53,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.01 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 98.1 MB in the beginning and 158.7 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:53,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.93 ms. Allocated memory is still 201.3 MB. Free memory was 158.7 MB in the beginning and 156.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:53,684 INFO L168 Benchmark]: Boogie Preprocessor took 27.19 ms. Allocated memory is still 201.3 MB. Free memory was 156.5 MB in the beginning and 155.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:53,684 INFO L168 Benchmark]: RCFGBuilder took 432.34 ms. Allocated memory is still 201.3 MB. Free memory was 155.1 MB in the beginning and 134.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:53,685 INFO L168 Benchmark]: TraceAbstraction took 2563.89 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 134.2 MB in the beginning and 168.0 MB in the end (delta: -33.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:40:53,690 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 143.1 MB. Free memory is still 118.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.01 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 98.1 MB in the beginning and 158.7 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.93 ms. Allocated memory is still 201.3 MB. Free memory was 158.7 MB in the beginning and 156.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.19 ms. Allocated memory is still 201.3 MB. Free memory was 156.5 MB in the beginning and 155.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 432.34 ms. Allocated memory is still 201.3 MB. Free memory was 155.1 MB in the beginning and 134.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2563.89 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 134.2 MB in the beginning and 168.0 MB in the end (delta: -33.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 504 CheckedPairsTotal, 44 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 15 SDslu, 31 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 976 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...