/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:08:10,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:08:10,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:08:10,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:08:10,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:08:10,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:08:10,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:08:10,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:08:10,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:08:10,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:08:10,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:08:10,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:08:10,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:08:10,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:08:10,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:08:10,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:08:10,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:08:10,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:08:10,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:08:10,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:08:10,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:08:10,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:08:10,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:08:10,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:08:10,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:08:10,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:08:10,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:08:10,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:08:10,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:08:10,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:08:10,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:08:10,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:08:10,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:08:10,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:08:10,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:08:10,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:08:10,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:08:10,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:08:10,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:08:10,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:08:10,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:08:10,867 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-NoLbe.epf [2019-12-19 04:08:10,891 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:08:10,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:08:10,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:08:10,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:08:10,894 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:08:10,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:08:10,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:08:10,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:08:10,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:08:10,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:08:10,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:08:10,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:08:10,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:08:10,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:08:10,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:08:10,896 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:08:10,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:08:10,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:08:10,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:08:10,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:08:10,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:08:10,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:08:10,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:08:10,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:08:10,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:08:10,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:08:10,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:08:10,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:08:10,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:08:10,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:08:11,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:08:11,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:08:11,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:08:11,228 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:08:11,229 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:08:11,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2019-12-19 04:08:11,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa542707a/b9e904e571174f3eb93ae26225034840/FLAG7f26eecd9 [2019-12-19 04:08:11,895 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:08:11,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2019-12-19 04:08:11,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa542707a/b9e904e571174f3eb93ae26225034840/FLAG7f26eecd9 [2019-12-19 04:08:12,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa542707a/b9e904e571174f3eb93ae26225034840 [2019-12-19 04:08:12,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:08:12,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:08:12,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:08:12,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:08:12,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:08:12,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5677aabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12, skipping insertion in model container [2019-12-19 04:08:12,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:08:12,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:08:12,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:08:12,667 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:08:12,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:08:12,836 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:08:12,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12 WrapperNode [2019-12-19 04:08:12,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:08:12,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:08:12,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:08:12,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:08:12,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:08:12,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:08:12,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:08:12,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:08:12,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (1/1) ... [2019-12-19 04:08:12,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:08:12,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:08:12,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:08:12,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:08:12,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (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 [2019-12-19 04:08:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:08:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:08:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:08:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:08:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:08:13,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:08:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:08:13,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:08:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:08:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:08:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:08:13,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:08:13,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:08:13,011 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:08:13,431 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:08:13,431 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:08:13,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:08:13 BoogieIcfgContainer [2019-12-19 04:08:13,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:08:13,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:08:13,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:08:13,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:08:13,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:08:12" (1/3) ... [2019-12-19 04:08:13,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc5cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:08:13, skipping insertion in model container [2019-12-19 04:08:13,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:08:12" (2/3) ... [2019-12-19 04:08:13,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc5cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:08:13, skipping insertion in model container [2019-12-19 04:08:13,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:08:13" (3/3) ... [2019-12-19 04:08:13,446 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2019-12-19 04:08:13,457 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:08:13,458 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:08:13,467 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:08:13,469 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:08:13,502 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,502 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,502 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,503 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,503 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,504 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,504 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,504 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,505 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,505 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,505 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,506 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,506 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,506 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,506 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,507 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,507 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,507 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,511 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,512 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,512 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,512 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,519 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,519 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,522 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,523 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,523 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,523 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:08:13,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:08:13,552 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:08:13,552 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:08:13,552 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:08:13,552 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:08:13,552 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:08:13,552 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:08:13,553 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:08:13,553 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:08:13,563 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:08:13,648 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:08:13,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:08:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:08:13,667 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:13,668 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:13,668 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:13,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:13,675 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-19 04:08:13,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:13,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295263803] [2019-12-19 04:08:13,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:08:14,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295263803] [2019-12-19 04:08:14,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:14,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:08:14,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902180129] [2019-12-19 04:08:14,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:08:14,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:14,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:08:14,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:08:14,090 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:08:14,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:14,230 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:08:14,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:08:14,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:08:14,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:14,257 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:08:14,257 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:08:14,259 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:08:14,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:08:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:08:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:08:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:08:14,399 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:08:14,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:14,400 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:08:14,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:08:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:08:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:08:14,409 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:14,410 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:14,410 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:14,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:14,411 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-19 04:08:14,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:14,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386290853] [2019-12-19 04:08:14,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:14,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:08:14,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386290853] [2019-12-19 04:08:14,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:14,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:08:14,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469215261] [2019-12-19 04:08:14,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:08:14,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:14,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:08:14,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:08:14,574 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:08:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:14,643 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:08:14,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:08:14,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:08:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:14,650 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:08:14,650 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:08:14,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:08:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:08:14,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:08:14,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:08:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:08:14,677 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:08:14,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:14,678 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:08:14,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:08:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:08:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:08:14,680 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:14,680 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:14,681 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:14,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:14,681 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-19 04:08:14,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:14,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109947274] [2019-12-19 04:08:14,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:14,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:08:14,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109947274] [2019-12-19 04:08:14,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:14,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:08:14,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775723820] [2019-12-19 04:08:14,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:08:14,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:14,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:08:14,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:08:14,828 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:08:14,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:14,929 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:08:14,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:08:14,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:08:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:14,933 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:08:14,934 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:08:14,934 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:08:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:08:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:08:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:08:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:08:14,950 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:08:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:14,951 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:08:14,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:08:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:08:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:08:14,955 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:14,955 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:14,956 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:14,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:14,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-19 04:08:14,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:14,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044445916] [2019-12-19 04:08:14,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:08:15,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044445916] [2019-12-19 04:08:15,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:15,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:08:15,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243913700] [2019-12-19 04:08:15,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:08:15,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:15,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:08:15,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:08:15,229 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-19 04:08:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:15,493 INFO L93 Difference]: Finished difference Result 718 states and 1938 transitions. [2019-12-19 04:08:15,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:08:15,494 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:08:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:15,497 INFO L225 Difference]: With dead ends: 718 [2019-12-19 04:08:15,497 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 04:08:15,499 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:08:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 04:08:15,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 04:08:15,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 04:08:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 04:08:15,514 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 04:08:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:15,515 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 04:08:15,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:08:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 04:08:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:08:15,517 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:08:15,517 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:08:15,517 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:08:15,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:08:15,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 2 times [2019-12-19 04:08:15,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:08:15,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948716430] [2019-12-19 04:08:15,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:08:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:08:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:08:15,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948716430] [2019-12-19 04:08:15,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:08:15,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:08:15,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691546704] [2019-12-19 04:08:15,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:08:15,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:08:15,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:08:15,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:08:15,650 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-19 04:08:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:08:15,776 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 04:08:15,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:08:15,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:08:15,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:08:15,779 INFO L225 Difference]: With dead ends: 259 [2019-12-19 04:08:15,779 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:08:15,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:08:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:08:15,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:08:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:08:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:08:15,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:08:15,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:08:15,783 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:08:15,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:08:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:08:15,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:08:15,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:08:15 BasicIcfg [2019-12-19 04:08:15,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:08:15,797 INFO L168 Benchmark]: Toolchain (without parser) took 3646.81 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 103.0 MB in the beginning and 184.2 MB in the end (delta: -81.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:15,800 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 04:08:15,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.47 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 158.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:15,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.96 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:15,814 INFO L168 Benchmark]: Boogie Preprocessor took 26.35 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:15,814 INFO L168 Benchmark]: RCFGBuilder took 487.95 ms. Allocated memory is still 203.4 MB. Free memory was 155.1 MB in the beginning and 134.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:08:15,816 INFO L168 Benchmark]: TraceAbstraction took 2356.64 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 133.9 MB in the beginning and 184.2 MB in the end (delta: -50.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:08:15,823 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 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.47 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 158.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 73.96 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.35 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 487.95 ms. Allocated memory is still 203.4 MB. Free memory was 155.1 MB in the beginning and 134.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2356.64 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 133.9 MB in the beginning and 184.2 MB in the end (delta: -50.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 366 SDslu, 585 SDs, 0 SdLazy, 89 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15567 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...