/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:01:27,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:01:27,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:01:27,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:01:27,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:01:27,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:01:27,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:01:27,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:01:27,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:01:27,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:01:27,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:01:27,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:01:27,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:01:27,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:01:27,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:01:27,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:01:27,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:01:27,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:01:27,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:01:27,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:01:27,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:01:27,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:01:27,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:01:27,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:01:27,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:01:27,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:01:27,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:01:27,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:01:27,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:01:27,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:01:27,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:01:27,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:01:27,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:01:27,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:01:27,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:01:27,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:01:27,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:01:27,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:01:27,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:01:27,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:01:27,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:01:27,876 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-SemanticLbe.epf [2020-04-17 22:01:27,899 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:01:27,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:01:27,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:01:27,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:01:27,902 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:01:27,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:01:27,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:01:27,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:01:27,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:01:27,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:01:27,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:01:27,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:01:27,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:01:27,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:01:27,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:01:27,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:01:27,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:01:27,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:01:27,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:01:27,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:01:27,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:01:27,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:01:27,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:01:27,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:01:27,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:01:27,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:01:27,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:01:27,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:01:27,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:01:28,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:01:28,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:01:28,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:01:28,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:01:28,256 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:01:28,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-04-17 22:01:28,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5aaa1f1f/f4b3469593e44c15901aedc6a0ad45e0/FLAGbb0f899e6 [2020-04-17 22:01:28,869 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:01:28,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2020-04-17 22:01:28,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5aaa1f1f/f4b3469593e44c15901aedc6a0ad45e0/FLAGbb0f899e6 [2020-04-17 22:01:29,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5aaa1f1f/f4b3469593e44c15901aedc6a0ad45e0 [2020-04-17 22:01:29,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:01:29,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:01:29,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:01:29,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:01:29,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:01:29,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:29,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6abf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29, skipping insertion in model container [2020-04-17 22:01:29,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:29,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:01:29,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:01:29,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:01:29,788 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:01:29,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:01:29,962 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:01:29,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29 WrapperNode [2020-04-17 22:01:29,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:01:29,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:01:29,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:01:29,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:01:29,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:29,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:01:30,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:01:30,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:01:30,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:01:30,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... [2020-04-17 22:01:30,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:01:30,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:01:30,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:01:30,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:01:30,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:01:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:01:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:01:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:01:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:01:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:01:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:01:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:01:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:01:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:01:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:01:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:01:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:01:30,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:01:30,116 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:01:30,555 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:01:30,556 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:01:30,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:01:30 BoogieIcfgContainer [2020-04-17 22:01:30,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:01:30,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:01:30,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:01:30,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:01:30,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:01:29" (1/3) ... [2020-04-17 22:01:30,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e58a30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:01:30, skipping insertion in model container [2020-04-17 22:01:30,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:01:29" (2/3) ... [2020-04-17 22:01:30,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e58a30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:01:30, skipping insertion in model container [2020-04-17 22:01:30,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:01:30" (3/3) ... [2020-04-17 22:01:30,569 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2020-04-17 22:01:30,580 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:01:30,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:01:30,588 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:01:30,590 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:01:30,617 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,617 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,617 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,618 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,618 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,619 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,619 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,619 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,620 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,620 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,620 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,621 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,621 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,621 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,622 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,622 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,622 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,623 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,627 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,627 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,627 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,628 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,634 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,635 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,635 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,635 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,638 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,638 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,638 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,639 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:01:30,652 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:01:30,669 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:01:30,669 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:01:30,669 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:01:30,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:01:30,670 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:01:30,670 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:01:30,670 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:01:30,670 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:01:30,685 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-17 22:01:30,687 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 22:01:30,732 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 22:01:30,733 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:01:30,738 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:01:30,741 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 22:01:30,763 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 22:01:30,764 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:01:30,764 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:01:30,767 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 22:01:30,768 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:01:32,791 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2287 [2020-04-17 22:01:32,792 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-04-17 22:01:32,796 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-04-17 22:01:32,821 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 22:01:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 22:01:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:01:32,832 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:32,833 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:32,833 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:32,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:32,840 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times [2020-04-17 22:01:32,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:32,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151659808] [2020-04-17 22:01:32,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:33,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151659808] [2020-04-17 22:01:33,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:33,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:01:33,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184526239] [2020-04-17 22:01:33,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:01:33,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:33,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:01:33,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:33,095 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 22:01:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:33,148 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-04-17 22:01:33,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:01:33,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 22:01:33,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:33,167 INFO L225 Difference]: With dead ends: 290 [2020-04-17 22:01:33,167 INFO L226 Difference]: Without dead ends: 226 [2020-04-17 22:01:33,169 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:33,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-04-17 22:01:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-04-17 22:01:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 22:01:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-04-17 22:01:33,238 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-04-17 22:01:33,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:33,239 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-04-17 22:01:33,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:01:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-04-17 22:01:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:01:33,241 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:33,241 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:33,242 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:33,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1327041946, now seen corresponding path program 1 times [2020-04-17 22:01:33,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:33,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013890904] [2020-04-17 22:01:33,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:33,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013890904] [2020-04-17 22:01:33,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:33,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:01:33,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59108701] [2020-04-17 22:01:33,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:01:33,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:33,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:01:33,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:33,338 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-04-17 22:01:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:33,355 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-04-17 22:01:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:01:33,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-17 22:01:33,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:33,358 INFO L225 Difference]: With dead ends: 214 [2020-04-17 22:01:33,359 INFO L226 Difference]: Without dead ends: 214 [2020-04-17 22:01:33,359 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:33,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-04-17 22:01:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-04-17 22:01:33,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-04-17 22:01:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-04-17 22:01:33,380 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-04-17 22:01:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:33,380 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-04-17 22:01:33,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:01:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-04-17 22:01:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 22:01:33,382 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:33,382 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:33,383 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:33,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:33,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1811373379, now seen corresponding path program 1 times [2020-04-17 22:01:33,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:33,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453173427] [2020-04-17 22:01:33,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:33,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453173427] [2020-04-17 22:01:33,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:33,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:01:33,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863207590] [2020-04-17 22:01:33,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:01:33,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:33,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:01:33,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:01:33,518 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-04-17 22:01:33,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:33,555 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-04-17 22:01:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:01:33,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-17 22:01:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:33,560 INFO L225 Difference]: With dead ends: 240 [2020-04-17 22:01:33,560 INFO L226 Difference]: Without dead ends: 144 [2020-04-17 22:01:33,560 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:01:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-04-17 22:01:33,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-04-17 22:01:33,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-04-17 22:01:33,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-04-17 22:01:33,571 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-04-17 22:01:33,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:33,572 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-04-17 22:01:33,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:01:33,572 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-04-17 22:01:33,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:01:33,574 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:33,574 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:33,576 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:33,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:33,577 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times [2020-04-17 22:01:33,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:33,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479539613] [2020-04-17 22:01:33,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:33,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479539613] [2020-04-17 22:01:33,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:33,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:01:33,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578410962] [2020-04-17 22:01:33,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:01:33,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:01:33,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:01:33,674 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-04-17 22:01:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:33,708 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-04-17 22:01:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:01:33,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 22:01:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:33,710 INFO L225 Difference]: With dead ends: 164 [2020-04-17 22:01:33,711 INFO L226 Difference]: Without dead ends: 124 [2020-04-17 22:01:33,711 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:01:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-04-17 22:01:33,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-04-17 22:01:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-04-17 22:01:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-04-17 22:01:33,719 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-04-17 22:01:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:33,720 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-04-17 22:01:33,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:01:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-04-17 22:01:33,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 22:01:33,721 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:33,721 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:33,722 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:33,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:33,722 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times [2020-04-17 22:01:33,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:33,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195568714] [2020-04-17 22:01:33,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:33,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195568714] [2020-04-17 22:01:33,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:33,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:01:33,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179597440] [2020-04-17 22:01:33,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:01:33,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:33,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:01:33,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:01:33,839 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-04-17 22:01:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:33,895 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-04-17 22:01:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:01:33,897 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 22:01:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:33,898 INFO L225 Difference]: With dead ends: 122 [2020-04-17 22:01:33,898 INFO L226 Difference]: Without dead ends: 97 [2020-04-17 22:01:33,899 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:01:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-04-17 22:01:33,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-04-17 22:01:33,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-04-17 22:01:33,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-04-17 22:01:33,905 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-04-17 22:01:33,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:33,906 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-04-17 22:01:33,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:01:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-04-17 22:01:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:01:33,907 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:33,908 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:33,908 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:33,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times [2020-04-17 22:01:33,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:33,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799652994] [2020-04-17 22:01:33,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:33,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799652994] [2020-04-17 22:01:33,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:33,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:01:33,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300099055] [2020-04-17 22:01:33,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:01:33,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:33,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:01:33,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:33,978 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-04-17 22:01:33,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:33,997 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-04-17 22:01:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:01:33,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-04-17 22:01:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:33,998 INFO L225 Difference]: With dead ends: 115 [2020-04-17 22:01:33,999 INFO L226 Difference]: Without dead ends: 98 [2020-04-17 22:01:33,999 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-04-17 22:01:34,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-04-17 22:01:34,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-04-17 22:01:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-04-17 22:01:34,027 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-04-17 22:01:34,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:34,027 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-04-17 22:01:34,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:01:34,027 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-04-17 22:01:34,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 22:01:34,028 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:34,029 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:34,029 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:34,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:34,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times [2020-04-17 22:01:34,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:34,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328501830] [2020-04-17 22:01:34,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:34,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328501830] [2020-04-17 22:01:34,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:34,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:01:34,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322123790] [2020-04-17 22:01:34,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:01:34,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:34,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:01:34,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:01:34,129 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-04-17 22:01:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:34,191 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-04-17 22:01:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:01:34,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-04-17 22:01:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:34,193 INFO L225 Difference]: With dead ends: 92 [2020-04-17 22:01:34,193 INFO L226 Difference]: Without dead ends: 36 [2020-04-17 22:01:34,194 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:01:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-04-17 22:01:34,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-04-17 22:01:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-04-17 22:01:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-04-17 22:01:34,196 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-04-17 22:01:34,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:34,196 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-04-17 22:01:34,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:01:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-04-17 22:01:34,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:01:34,197 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:01:34,197 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:01:34,198 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:01:34,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:01:34,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1202444330, now seen corresponding path program 1 times [2020-04-17 22:01:34,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:01:34,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429284869] [2020-04-17 22:01:34,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:01:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:01:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:01:34,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429284869] [2020-04-17 22:01:34,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:01:34,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:01:34,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999685088] [2020-04-17 22:01:34,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:01:34,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:01:34,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:01:34,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:34,231 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states. [2020-04-17 22:01:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:01:34,236 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-04-17 22:01:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:01:34,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-04-17 22:01:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:01:34,237 INFO L225 Difference]: With dead ends: 35 [2020-04-17 22:01:34,237 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:01:34,237 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:01:34,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:01:34,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:01:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:01:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:01:34,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-17 22:01:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:01:34,239 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:01:34,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:01:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:01:34,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:01:34,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:01:34 BasicIcfg [2020-04-17 22:01:34,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:01:34,246 INFO L168 Benchmark]: Toolchain (without parser) took 5088.38 ms. Allocated memory was 134.7 MB in the beginning and 256.4 MB in the end (delta: 121.6 MB). Free memory was 98.5 MB in the beginning and 196.0 MB in the end (delta: -97.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:01:34,247 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 134.7 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-17 22:01:34,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.53 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 96.5 MB in the beginning and 155.9 MB in the end (delta: -59.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-04-17 22:01:34,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 199.2 MB. Free memory was 155.9 MB in the beginning and 153.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-17 22:01:34,249 INFO L168 Benchmark]: Boogie Preprocessor took 27.88 ms. Allocated memory is still 199.2 MB. Free memory was 153.7 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:01:34,250 INFO L168 Benchmark]: RCFGBuilder took 518.61 ms. Allocated memory is still 199.2 MB. Free memory was 152.2 MB in the beginning and 130.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:01:34,251 INFO L168 Benchmark]: TraceAbstraction took 3682.00 ms. Allocated memory was 199.2 MB in the beginning and 256.4 MB in the end (delta: 57.1 MB). Free memory was 130.3 MB in the beginning and 196.0 MB in the end (delta: -65.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 22:01:34,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 134.7 MB. Free memory was 117.9 MB in the beginning and 117.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.53 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 96.5 MB in the beginning and 155.9 MB in the end (delta: -59.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 199.2 MB. Free memory was 155.9 MB in the beginning and 153.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.88 ms. Allocated memory is still 199.2 MB. Free memory was 153.7 MB in the beginning and 152.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 518.61 ms. Allocated memory is still 199.2 MB. Free memory was 152.2 MB in the beginning and 130.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3682.00 ms. Allocated memory was 199.2 MB in the beginning and 256.4 MB in the end (delta: 57.1 MB). Free memory was 130.3 MB in the beginning and 196.0 MB in the end (delta: -65.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2287 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 144 SDtfs, 123 SDslu, 169 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2700 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...