/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:51:18,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:51:18,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:51:18,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:51:18,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:51:18,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:51:18,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:51:18,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:51:18,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:51:18,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:51:18,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:51:18,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:51:18,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:51:18,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:51:18,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:51:18,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:51:18,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:51:18,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:51:18,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:51:18,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:51:18,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:51:18,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:51:18,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:51:18,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:51:18,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:51:18,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:51:18,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:51:18,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:51:18,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:51:18,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:51:18,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:51:18,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:51:18,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:51:18,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:51:18,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:51:18,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:51:18,882 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-MCR.epf [2019-12-27 22:51:18,903 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:51:18,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:51:18,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:51:18,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:51:18,906 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:51:18,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:51:18,906 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:51:18,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:51:18,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:51:18,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:51:18,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:51:18,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:51:18,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:51:18,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:51:18,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:51:18,909 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:51:18,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:51:18,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:51:18,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:51:18,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:51:18,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:51:18,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:51:18,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:51:18,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:51:18,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:51:18,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:51:18,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:51:18,912 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:51:18,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:51:18,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:51:18,913 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:51:18,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:51:19,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:51:19,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:51:19,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:51:19,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:51:19,204 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:51:19,205 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2019-12-27 22:51:19,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c52e95ff1/ebc4fab7426341b3b4968fbb132f6129/FLAGdf148615d [2019-12-27 22:51:19,882 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:51:19,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2019-12-27 22:51:19,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c52e95ff1/ebc4fab7426341b3b4968fbb132f6129/FLAGdf148615d [2019-12-27 22:51:20,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c52e95ff1/ebc4fab7426341b3b4968fbb132f6129 [2019-12-27 22:51:20,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:51:20,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:51:20,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:51:20,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:51:20,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:51:20,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18360309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20, skipping insertion in model container [2019-12-27 22:51:20,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:51:20,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:51:20,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:51:20,751 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:51:20,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:51:20,897 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:51:20,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20 WrapperNode [2019-12-27 22:51:20,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:51:20,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:51:20,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:51:20,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:51:20,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:51:20,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:51:20,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:51:20,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:51:20,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (1/1) ... [2019-12-27 22:51:20,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:51:20,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:51:20,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:51:20,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:51:20,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (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 22:51:21,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:51:21,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:51:21,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:51:21,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:51:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:51:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:51:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:51:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:51:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:51:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:51:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:51:21,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:51:21,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:51:21,053 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 22:51:21,442 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:51:21,443 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:51:21,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:51:21 BoogieIcfgContainer [2019-12-27 22:51:21,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:51:21,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:51:21,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:51:21,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:51:21,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:51:20" (1/3) ... [2019-12-27 22:51:21,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c930f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:51:21, skipping insertion in model container [2019-12-27 22:51:21,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:51:20" (2/3) ... [2019-12-27 22:51:21,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360c930f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:51:21, skipping insertion in model container [2019-12-27 22:51:21,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:51:21" (3/3) ... [2019-12-27 22:51:21,453 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2019-12-27 22:51:21,462 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:51:21,463 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:51:21,470 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:51:21,471 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:51:21,500 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,500 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,500 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,501 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,501 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,501 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,502 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,502 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,502 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,503 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,503 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,503 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,504 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,507 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,507 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,508 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,508 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,508 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,512 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,513 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,513 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,513 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,520 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,520 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,526 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:51:21,544 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:51:21,566 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:51:21,567 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:51:21,567 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:51:21,568 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:51:21,568 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:51:21,568 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:51:21,569 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:51:21,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:51:21,589 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 22:51:21,591 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:51:21,635 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:51:21,635 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:51:21,642 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 22:51:21,645 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:51:21,670 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:51:21,670 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:51:21,671 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 22:51:21,674 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:51:21,676 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:51:22,964 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 22:51:23,023 INFO L206 etLargeBlockEncoding]: Checked pairs total: 489 [2019-12-27 22:51:23,024 INFO L214 etLargeBlockEncoding]: Total number of compositions: 43 [2019-12-27 22:51:23,028 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:51:23,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:51:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:51:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:51:23,050 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:23,051 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:23,051 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:23,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:23,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1221233282, now seen corresponding path program 1 times [2019-12-27 22:51:23,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:23,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969225165] [2019-12-27 22:51:23,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:23,431 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 22:51:23,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969225165] [2019-12-27 22:51:23,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:23,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:51:23,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [836163334] [2019-12-27 22:51:23,439 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:23,448 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:23,465 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:51:23,466 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:23,470 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:23,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:51:23,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:23,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:51:23,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:51:23,490 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:51:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:23,523 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:51:23,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:51:23,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:51:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:23,554 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:51:23,554 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:51:23,556 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 22:51:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:51:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:51:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:51:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:51:23,594 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:51:23,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:23,595 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:51:23,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:51:23,595 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:51:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:51:23,596 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:23,596 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:23,596 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:23,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:23,597 INFO L82 PathProgramCache]: Analyzing trace with hash 796473804, now seen corresponding path program 1 times [2019-12-27 22:51:23,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:23,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752403738] [2019-12-27 22:51:23,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:23,699 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 22:51:23,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752403738] [2019-12-27 22:51:23,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:23,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:51:23,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [108166935] [2019-12-27 22:51:23,701 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:23,702 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:23,705 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:51:23,705 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:23,705 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:23,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:51:23,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:23,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:51:23,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:51:23,708 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 22:51:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:23,736 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 22:51:23,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:51:23,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 22:51:23,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:23,738 INFO L225 Difference]: With dead ends: 39 [2019-12-27 22:51:23,738 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 22:51:23,739 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 22:51:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 22:51:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 22:51:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 22:51:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 22:51:23,745 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 22:51:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:23,745 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 22:51:23,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:51:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 22:51:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:51:23,747 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:23,747 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:23,747 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1474951325, now seen corresponding path program 1 times [2019-12-27 22:51:23,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:23,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211640558] [2019-12-27 22:51:23,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:23,829 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 22:51:23,829 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211640558] [2019-12-27 22:51:23,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:23,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:51:23,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1643811792] [2019-12-27 22:51:23,831 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:23,832 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:23,837 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 22:51:23,837 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:23,839 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:23,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:51:23,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:23,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:51:23,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:51:23,841 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-27 22:51:23,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:23,873 INFO L93 Difference]: Finished difference Result 41 states and 60 transitions. [2019-12-27 22:51:23,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 22:51:23,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:51:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:23,876 INFO L225 Difference]: With dead ends: 41 [2019-12-27 22:51:23,877 INFO L226 Difference]: Without dead ends: 29 [2019-12-27 22:51:23,877 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 22:51:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-27 22:51:23,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-12-27 22:51:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 22:51:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 22:51:23,882 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-27 22:51:23,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:23,883 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 22:51:23,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:51:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 22:51:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:51:23,883 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:23,883 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:23,884 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:23,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1079116931, now seen corresponding path program 1 times [2019-12-27 22:51:23,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:23,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331890922] [2019-12-27 22:51:23,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:24,081 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 22:51:24,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331890922] [2019-12-27 22:51:24,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:24,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:51:24,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2057132175] [2019-12-27 22:51:24,083 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:24,084 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:24,085 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:51:24,085 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:24,085 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:24,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:51:24,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:24,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:51:24,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:51:24,086 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-27 22:51:24,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:24,135 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-27 22:51:24,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 22:51:24,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 22:51:24,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:24,136 INFO L225 Difference]: With dead ends: 31 [2019-12-27 22:51:24,136 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 22:51:24,136 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:51:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 22:51:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 22:51:24,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 22:51:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 22:51:24,140 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-27 22:51:24,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:24,140 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 22:51:24,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:51:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 22:51:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:51:24,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:24,142 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:24,142 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:24,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1076556641, now seen corresponding path program 2 times [2019-12-27 22:51:24,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:24,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861111113] [2019-12-27 22:51:24,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:24,215 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 22:51:24,215 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861111113] [2019-12-27 22:51:24,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:24,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 22:51:24,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1382673742] [2019-12-27 22:51:24,217 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:24,218 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:24,220 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:51:24,220 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:24,267 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 22:51:24,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 22:51:24,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:24,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 22:51:24,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-27 22:51:24,268 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 7 states. [2019-12-27 22:51:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:24,357 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-27 22:51:24,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 22:51:24,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 22:51:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:24,359 INFO L225 Difference]: With dead ends: 25 [2019-12-27 22:51:24,359 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 22:51:24,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-27 22:51:24,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 22:51:24,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 22:51:24,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 22:51:24,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 22:51:24,368 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 22:51:24,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:24,368 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 22:51:24,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 22:51:24,368 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 22:51:24,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:51:24,370 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:51:24,370 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:51:24,370 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:51:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:51:24,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1518589970, now seen corresponding path program 1 times [2019-12-27 22:51:24,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:51:24,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650693837] [2019-12-27 22:51:24,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:51:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:51:24,425 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 22:51:24,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650693837] [2019-12-27 22:51:24,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:51:24,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:51:24,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1417232164] [2019-12-27 22:51:24,428 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:51:24,429 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:51:24,435 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:51:24,435 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:51:24,436 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:51:24,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:51:24,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:51:24,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:51:24,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:51:24,440 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-27 22:51:24,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:51:24,459 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-27 22:51:24,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:51:24,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:51:24,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:51:24,460 INFO L225 Difference]: With dead ends: 17 [2019-12-27 22:51:24,460 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:51:24,460 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 22:51:24,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:51:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:51:24,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:51:24,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:51:24,461 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:51:24,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:51:24,462 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:51:24,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:51:24,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:51:24,462 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:51:24,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:51:24 BasicIcfg [2019-12-27 22:51:24,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:51:24,468 INFO L168 Benchmark]: Toolchain (without parser) took 4260.78 ms. Allocated memory was 138.4 MB in the beginning and 247.5 MB in the end (delta: 109.1 MB). Free memory was 100.3 MB in the beginning and 129.4 MB in the end (delta: -29.2 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,468 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.61 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 160.1 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.82 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 157.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,471 INFO L168 Benchmark]: Boogie Preprocessor took 28.98 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,471 INFO L168 Benchmark]: RCFGBuilder took 456.56 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 136.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,472 INFO L168 Benchmark]: TraceAbstraction took 3020.30 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.5 MB in the beginning and 129.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:51:24,477 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.61 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 160.1 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.82 ms. Allocated memory is still 202.9 MB. Free memory was 160.1 MB in the beginning and 157.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.98 ms. Allocated memory is still 202.9 MB. Free memory was 157.5 MB in the beginning and 156.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.56 ms. Allocated memory is still 202.9 MB. Free memory was 156.2 MB in the beginning and 136.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3020.30 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 135.5 MB in the beginning and 129.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 210 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 489 CheckedPairsTotal, 43 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 61 SDslu, 68 SDs, 0 SdLazy, 58 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...