/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 11:54:07,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 11:54:07,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 11:54:07,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 11:54:07,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 11:54:07,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 11:54:07,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 11:54:07,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 11:54:07,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 11:54:07,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 11:54:07,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 11:54:07,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 11:54:07,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 11:54:07,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 11:54:07,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 11:54:07,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 11:54:07,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 11:54:07,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 11:54:07,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 11:54:07,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 11:54:07,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 11:54:07,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 11:54:07,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 11:54:07,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 11:54:07,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 11:54:07,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 11:54:07,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 11:54:07,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 11:54:07,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 11:54:07,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 11:54:07,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 11:54:07,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 11:54:07,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 11:54:07,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 11:54:07,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 11:54:07,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 11:54:07,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 11:54:07,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 11:54:07,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 11:54:07,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 11:54:07,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 11:54:07,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 11:54:07,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 11:54:07,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 11:54:07,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 11:54:07,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 11:54:07,904 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 11:54:07,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 11:54:07,904 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 11:54:07,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 11:54:07,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 11:54:07,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 11:54:07,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 11:54:07,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 11:54:07,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 11:54:07,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 11:54:07,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 11:54:07,906 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 11:54:07,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 11:54:07,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 11:54:07,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 11:54:07,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 11:54:07,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 11:54:07,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 11:54:07,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 11:54:07,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 11:54:07,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 11:54:07,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 11:54:07,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 11:54:07,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 11:54:07,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 11:54:07,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 11:54:08,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 11:54:08,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 11:54:08,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 11:54:08,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 11:54:08,267 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 11:54:08,267 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_rmo.opt.i [2019-12-27 11:54:08,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4396ca82e/1945a1ddfa5c4d30be3280226523cfb8/FLAG468f19984 [2019-12-27 11:54:08,871 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 11:54:08,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_rmo.opt.i [2019-12-27 11:54:08,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4396ca82e/1945a1ddfa5c4d30be3280226523cfb8/FLAG468f19984 [2019-12-27 11:54:09,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4396ca82e/1945a1ddfa5c4d30be3280226523cfb8 [2019-12-27 11:54:09,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 11:54:09,134 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 11:54:09,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 11:54:09,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 11:54:09,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 11:54:09,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:09,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee1d159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09, skipping insertion in model container [2019-12-27 11:54:09,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:09,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 11:54:09,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 11:54:09,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 11:54:09,721 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 11:54:09,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 11:54:09,930 INFO L208 MainTranslator]: Completed translation [2019-12-27 11:54:09,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09 WrapperNode [2019-12-27 11:54:09,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 11:54:09,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 11:54:09,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 11:54:09,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 11:54:09,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:09,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 11:54:10,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 11:54:10,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 11:54:10,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 11:54:10,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (1/1) ... [2019-12-27 11:54:10,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 11:54:10,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 11:54:10,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 11:54:10,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 11:54:10,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (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 11:54:10,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 11:54:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 11:54:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 11:54:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 11:54:10,111 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 11:54:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 11:54:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 11:54:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 11:54:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 11:54:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 11:54:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 11:54:10,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 11:54:10,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 11:54:10,115 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 11:54:10,886 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 11:54:10,887 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-27 11:54:10,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:54:10 BoogieIcfgContainer [2019-12-27 11:54:10,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 11:54:10,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 11:54:10,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 11:54:10,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 11:54:10,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:54:09" (1/3) ... [2019-12-27 11:54:10,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b4be31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:54:10, skipping insertion in model container [2019-12-27 11:54:10,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:54:09" (2/3) ... [2019-12-27 11:54:10,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b4be31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:54:10, skipping insertion in model container [2019-12-27 11:54:10,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:54:10" (3/3) ... [2019-12-27 11:54:10,899 INFO L109 eAbstractionObserver]: Analyzing ICFG mix045_rmo.opt.i [2019-12-27 11:54:10,910 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 11:54:10,911 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 11:54:10,923 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 11:54:10,924 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 11:54:10,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,968 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,968 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,969 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,969 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,970 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,972 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,973 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,973 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,973 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,973 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,974 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,974 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,975 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,975 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,975 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,976 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,979 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,979 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,979 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,979 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,980 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,980 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,980 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,981 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,981 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,981 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,981 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,986 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,987 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,987 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,987 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,988 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,988 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,988 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,989 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,993 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,994 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,994 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,994 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,994 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,995 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,998 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,999 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,999 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:10,999 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,000 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,000 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,000 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,000 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,017 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,017 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,017 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,017 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,020 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,020 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,021 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,021 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,023 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,023 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,023 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,024 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,025 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,025 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 11:54:11,043 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 11:54:11,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 11:54:11,060 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 11:54:11,060 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 11:54:11,060 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 11:54:11,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 11:54:11,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 11:54:11,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 11:54:11,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 11:54:11,076 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 164 places, 195 transitions [2019-12-27 11:54:24,046 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 92467 states. [2019-12-27 11:54:24,048 INFO L276 IsEmpty]: Start isEmpty. Operand 92467 states. [2019-12-27 11:54:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-27 11:54:24,062 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:54:24,065 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:54:24,066 INFO L410 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:54:24,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:54:24,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1399349606, now seen corresponding path program 1 times [2019-12-27 11:54:24,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:54:24,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092769493] [2019-12-27 11:54:24,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:54:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:54:24,405 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 11:54:24,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092769493] [2019-12-27 11:54:24,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:54:24,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 11:54:24,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115769929] [2019-12-27 11:54:24,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 11:54:24,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:54:24,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 11:54:24,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 11:54:24,436 INFO L87 Difference]: Start difference. First operand 92467 states. Second operand 4 states. [2019-12-27 11:54:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:54:25,687 INFO L93 Difference]: Finished difference Result 96403 states and 448739 transitions. [2019-12-27 11:54:25,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 11:54:25,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2019-12-27 11:54:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:54:26,283 INFO L225 Difference]: With dead ends: 96403 [2019-12-27 11:54:26,284 INFO L226 Difference]: Without dead ends: 85523 [2019-12-27 11:54:26,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 11:54:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85523 states. [2019-12-27 11:54:32,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85523 to 85523. [2019-12-27 11:54:32,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85523 states. [2019-12-27 11:54:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85523 states to 85523 states and 400699 transitions. [2019-12-27 11:54:32,929 INFO L78 Accepts]: Start accepts. Automaton has 85523 states and 400699 transitions. Word has length 46 [2019-12-27 11:54:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:54:32,930 INFO L462 AbstractCegarLoop]: Abstraction has 85523 states and 400699 transitions. [2019-12-27 11:54:32,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 11:54:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 85523 states and 400699 transitions. [2019-12-27 11:54:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-27 11:54:32,943 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:54:32,944 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:54:32,944 INFO L410 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:54:32,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:54:32,945 INFO L82 PathProgramCache]: Analyzing trace with hash -15854826, now seen corresponding path program 1 times [2019-12-27 11:54:32,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:54:32,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960495678] [2019-12-27 11:54:32,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:54:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:54:33,065 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 11:54:33,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960495678] [2019-12-27 11:54:33,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:54:33,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 11:54:33,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863075547] [2019-12-27 11:54:33,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 11:54:33,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:54:33,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 11:54:33,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 11:54:33,069 INFO L87 Difference]: Start difference. First operand 85523 states and 400699 transitions. Second operand 5 states. [2019-12-27 11:54:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:54:37,803 INFO L93 Difference]: Finished difference Result 139651 states and 623535 transitions. [2019-12-27 11:54:37,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 11:54:37,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-12-27 11:54:37,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:54:39,041 INFO L225 Difference]: With dead ends: 139651 [2019-12-27 11:54:39,042 INFO L226 Difference]: Without dead ends: 138931 [2019-12-27 11:54:39,043 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-27 11:54:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138931 states. [2019-12-27 11:54:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138931 to 132787. [2019-12-27 11:54:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132787 states. [2019-12-27 11:54:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132787 states to 132787 states and 597163 transitions. [2019-12-27 11:54:51,733 INFO L78 Accepts]: Start accepts. Automaton has 132787 states and 597163 transitions. Word has length 53 [2019-12-27 11:54:51,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:54:51,734 INFO L462 AbstractCegarLoop]: Abstraction has 132787 states and 597163 transitions. [2019-12-27 11:54:51,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 11:54:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 132787 states and 597163 transitions. [2019-12-27 11:54:51,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-12-27 11:54:51,745 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:54:51,745 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:54:51,746 INFO L410 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:54:51,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:54:51,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1946503039, now seen corresponding path program 1 times [2019-12-27 11:54:51,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:54:51,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744436031] [2019-12-27 11:54:51,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:54:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:54:51,839 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 11:54:51,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744436031] [2019-12-27 11:54:51,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:54:51,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 11:54:51,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327082405] [2019-12-27 11:54:51,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 11:54:51,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:54:51,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 11:54:51,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 11:54:51,843 INFO L87 Difference]: Start difference. First operand 132787 states and 597163 transitions. Second operand 5 states. [2019-12-27 11:54:53,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:54:53,107 INFO L93 Difference]: Finished difference Result 161555 states and 717783 transitions. [2019-12-27 11:54:53,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 11:54:53,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2019-12-27 11:54:53,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:54:54,864 INFO L225 Difference]: With dead ends: 161555 [2019-12-27 11:54:54,864 INFO L226 Difference]: Without dead ends: 160755 [2019-12-27 11:54:54,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-27 11:54:55,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160755 states. [2019-12-27 11:54:59,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160755 to 139079. [2019-12-27 11:54:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139079 states. [2019-12-27 11:54:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139079 states to 139079 states and 623066 transitions. [2019-12-27 11:54:59,699 INFO L78 Accepts]: Start accepts. Automaton has 139079 states and 623066 transitions. Word has length 54 [2019-12-27 11:54:59,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:54:59,699 INFO L462 AbstractCegarLoop]: Abstraction has 139079 states and 623066 transitions. [2019-12-27 11:54:59,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 11:54:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand 139079 states and 623066 transitions. [2019-12-27 11:54:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-12-27 11:54:59,738 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:54:59,738 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:54:59,738 INFO L410 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:54:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:54:59,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1620706159, now seen corresponding path program 1 times [2019-12-27 11:54:59,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:54:59,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726580266] [2019-12-27 11:54:59,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:54:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:54:59,862 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 11:54:59,862 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726580266] [2019-12-27 11:54:59,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:54:59,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 11:54:59,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479101904] [2019-12-27 11:54:59,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 11:54:59,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:54:59,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 11:54:59,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 11:54:59,864 INFO L87 Difference]: Start difference. First operand 139079 states and 623066 transitions. Second operand 6 states. [2019-12-27 11:55:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:55:02,727 INFO L93 Difference]: Finished difference Result 183583 states and 805092 transitions. [2019-12-27 11:55:02,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-27 11:55:02,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2019-12-27 11:55:02,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:55:09,835 INFO L225 Difference]: With dead ends: 183583 [2019-12-27 11:55:09,835 INFO L226 Difference]: Without dead ends: 182863 [2019-12-27 11:55:09,836 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-12-27 11:55:10,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182863 states. [2019-12-27 11:55:13,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182863 to 134931. [2019-12-27 11:55:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134931 states. [2019-12-27 11:55:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134931 states to 134931 states and 604575 transitions. [2019-12-27 11:55:13,725 INFO L78 Accepts]: Start accepts. Automaton has 134931 states and 604575 transitions. Word has length 61 [2019-12-27 11:55:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:55:13,726 INFO L462 AbstractCegarLoop]: Abstraction has 134931 states and 604575 transitions. [2019-12-27 11:55:13,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 11:55:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 134931 states and 604575 transitions. [2019-12-27 11:55:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-27 11:55:13,803 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:55:13,804 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:55:13,804 INFO L410 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:55:13,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:55:13,804 INFO L82 PathProgramCache]: Analyzing trace with hash 92553995, now seen corresponding path program 1 times [2019-12-27 11:55:13,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:55:13,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429831609] [2019-12-27 11:55:13,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:55:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:55:13,923 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 11:55:13,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429831609] [2019-12-27 11:55:13,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:55:13,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 11:55:13,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456495376] [2019-12-27 11:55:13,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 11:55:13,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:55:13,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 11:55:13,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 11:55:13,927 INFO L87 Difference]: Start difference. First operand 134931 states and 604575 transitions. Second operand 6 states. [2019-12-27 11:55:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:55:16,379 INFO L93 Difference]: Finished difference Result 185115 states and 812729 transitions. [2019-12-27 11:55:16,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-27 11:55:16,379 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-12-27 11:55:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:55:17,030 INFO L225 Difference]: With dead ends: 185115 [2019-12-27 11:55:17,030 INFO L226 Difference]: Without dead ends: 183915 [2019-12-27 11:55:17,031 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 11:55:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183915 states. [2019-12-27 11:55:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183915 to 160431. [2019-12-27 11:55:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160431 states. [2019-12-27 11:55:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160431 states to 160431 states and 711516 transitions. [2019-12-27 11:55:27,727 INFO L78 Accepts]: Start accepts. Automaton has 160431 states and 711516 transitions. Word has length 68 [2019-12-27 11:55:27,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:55:27,728 INFO L462 AbstractCegarLoop]: Abstraction has 160431 states and 711516 transitions. [2019-12-27 11:55:27,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 11:55:27,728 INFO L276 IsEmpty]: Start isEmpty. Operand 160431 states and 711516 transitions. [2019-12-27 11:55:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-12-27 11:55:27,830 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:55:27,830 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:55:27,830 INFO L410 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:55:27,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:55:27,831 INFO L82 PathProgramCache]: Analyzing trace with hash -155089124, now seen corresponding path program 1 times [2019-12-27 11:55:27,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:55:27,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096906589] [2019-12-27 11:55:27,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:55:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:55:27,882 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 11:55:27,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096906589] [2019-12-27 11:55:27,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:55:27,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 11:55:27,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091081620] [2019-12-27 11:55:27,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 11:55:27,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:55:27,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 11:55:27,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 11:55:27,884 INFO L87 Difference]: Start difference. First operand 160431 states and 711516 transitions. Second operand 3 states. [2019-12-27 11:55:33,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:55:33,803 INFO L93 Difference]: Finished difference Result 202239 states and 884076 transitions. [2019-12-27 11:55:33,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 11:55:33,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-12-27 11:55:33,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:55:35,251 INFO L225 Difference]: With dead ends: 202239 [2019-12-27 11:55:35,251 INFO L226 Difference]: Without dead ends: 202239 [2019-12-27 11:55:35,252 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:55:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202239 states. [2019-12-27 11:55:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202239 to 176151. [2019-12-27 11:55:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176151 states. [2019-12-27 11:55:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176151 states to 176151 states and 777058 transitions. [2019-12-27 11:55:45,675 INFO L78 Accepts]: Start accepts. Automaton has 176151 states and 777058 transitions. Word has length 70 [2019-12-27 11:55:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:55:45,675 INFO L462 AbstractCegarLoop]: Abstraction has 176151 states and 777058 transitions. [2019-12-27 11:55:45,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 11:55:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 176151 states and 777058 transitions. [2019-12-27 11:55:45,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-27 11:55:45,852 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:55:45,852 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:55:45,852 INFO L410 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:55:45,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:55:45,853 INFO L82 PathProgramCache]: Analyzing trace with hash -915433476, now seen corresponding path program 1 times [2019-12-27 11:55:45,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:55:45,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515023787] [2019-12-27 11:55:45,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:55:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:55:45,952 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 11:55:45,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515023787] [2019-12-27 11:55:45,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:55:45,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 11:55:45,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243922111] [2019-12-27 11:55:45,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 11:55:45,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:55:45,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 11:55:45,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 11:55:45,954 INFO L87 Difference]: Start difference. First operand 176151 states and 777058 transitions. Second operand 7 states. [2019-12-27 11:55:54,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:55:54,235 INFO L93 Difference]: Finished difference Result 224103 states and 971734 transitions. [2019-12-27 11:55:54,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 11:55:54,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-12-27 11:55:54,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:55:55,045 INFO L225 Difference]: With dead ends: 224103 [2019-12-27 11:55:55,045 INFO L226 Difference]: Without dead ends: 222903 [2019-12-27 11:55:55,045 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-12-27 11:55:56,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222903 states. [2019-12-27 11:56:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222903 to 180727. [2019-12-27 11:56:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180727 states. [2019-12-27 11:56:01,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180727 states to 180727 states and 796150 transitions. [2019-12-27 11:56:01,393 INFO L78 Accepts]: Start accepts. Automaton has 180727 states and 796150 transitions. Word has length 74 [2019-12-27 11:56:01,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:56:01,394 INFO L462 AbstractCegarLoop]: Abstraction has 180727 states and 796150 transitions. [2019-12-27 11:56:01,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 11:56:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 180727 states and 796150 transitions. [2019-12-27 11:56:01,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-27 11:56:01,559 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:56:01,559 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:56:01,559 INFO L410 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:56:01,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:56:01,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1650864197, now seen corresponding path program 1 times [2019-12-27 11:56:01,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:56:01,560 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862621197] [2019-12-27 11:56:01,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:56:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:56:01,682 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 11:56:01,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862621197] [2019-12-27 11:56:01,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:56:01,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 11:56:01,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053857389] [2019-12-27 11:56:01,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 11:56:01,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:56:01,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 11:56:01,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 11:56:01,684 INFO L87 Difference]: Start difference. First operand 180727 states and 796150 transitions. Second operand 4 states. [2019-12-27 11:56:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:56:12,649 INFO L93 Difference]: Finished difference Result 277855 states and 1217220 transitions. [2019-12-27 11:56:12,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 11:56:12,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2019-12-27 11:56:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:56:13,614 INFO L225 Difference]: With dead ends: 277855 [2019-12-27 11:56:13,614 INFO L226 Difference]: Without dead ends: 277855 [2019-12-27 11:56:13,615 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 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 11:56:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277855 states. [2019-12-27 11:56:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277855 to 214687. [2019-12-27 11:56:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214687 states. [2019-12-27 11:56:21,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214687 states to 214687 states and 943480 transitions. [2019-12-27 11:56:21,142 INFO L78 Accepts]: Start accepts. Automaton has 214687 states and 943480 transitions. Word has length 75 [2019-12-27 11:56:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:56:21,142 INFO L462 AbstractCegarLoop]: Abstraction has 214687 states and 943480 transitions. [2019-12-27 11:56:21,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 11:56:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 214687 states and 943480 transitions. [2019-12-27 11:56:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-27 11:56:21,372 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:56:21,372 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:56:21,372 INFO L410 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:56:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:56:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash -162790407, now seen corresponding path program 1 times [2019-12-27 11:56:21,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:56:21,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361969081] [2019-12-27 11:56:21,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:56:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:56:21,475 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 11:56:21,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361969081] [2019-12-27 11:56:21,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:56:21,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 11:56:21,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275048911] [2019-12-27 11:56:21,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 11:56:21,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:56:21,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 11:56:21,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 11:56:21,480 INFO L87 Difference]: Start difference. First operand 214687 states and 943480 transitions. Second operand 7 states. [2019-12-27 11:56:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:56:29,774 INFO L93 Difference]: Finished difference Result 255731 states and 1108635 transitions. [2019-12-27 11:56:29,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 11:56:29,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-12-27 11:56:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:56:31,409 INFO L225 Difference]: With dead ends: 255731 [2019-12-27 11:56:31,409 INFO L226 Difference]: Without dead ends: 254731 [2019-12-27 11:56:31,409 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2019-12-27 11:56:32,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254731 states. [2019-12-27 11:56:42,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254731 to 217763. [2019-12-27 11:56:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217763 states. [2019-12-27 11:56:44,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217763 states to 217763 states and 955907 transitions. [2019-12-27 11:56:44,252 INFO L78 Accepts]: Start accepts. Automaton has 217763 states and 955907 transitions. Word has length 75 [2019-12-27 11:56:44,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:56:44,252 INFO L462 AbstractCegarLoop]: Abstraction has 217763 states and 955907 transitions. [2019-12-27 11:56:44,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 11:56:44,253 INFO L276 IsEmpty]: Start isEmpty. Operand 217763 states and 955907 transitions. [2019-12-27 11:56:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-27 11:56:44,526 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:56:44,527 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:56:44,527 INFO L410 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:56:44,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:56:44,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1991738286, now seen corresponding path program 1 times [2019-12-27 11:56:44,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:56:44,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681519602] [2019-12-27 11:56:44,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:56:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:56:44,687 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 11:56:44,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681519602] [2019-12-27 11:56:44,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:56:44,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 11:56:44,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159670921] [2019-12-27 11:56:44,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 11:56:44,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:56:44,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 11:56:44,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 11:56:44,690 INFO L87 Difference]: Start difference. First operand 217763 states and 955907 transitions. Second operand 6 states. [2019-12-27 11:56:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 11:56:53,857 INFO L93 Difference]: Finished difference Result 303799 states and 1328162 transitions. [2019-12-27 11:56:53,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 11:56:53,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2019-12-27 11:56:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 11:56:55,728 INFO L225 Difference]: With dead ends: 303799 [2019-12-27 11:56:55,728 INFO L226 Difference]: Without dead ends: 301223 [2019-12-27 11:56:55,728 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-27 11:56:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301223 states. [2019-12-27 11:57:02,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301223 to 261363. [2019-12-27 11:57:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261363 states. [2019-12-27 11:57:04,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261363 states to 261363 states and 1149291 transitions. [2019-12-27 11:57:04,316 INFO L78 Accepts]: Start accepts. Automaton has 261363 states and 1149291 transitions. Word has length 77 [2019-12-27 11:57:04,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 11:57:04,317 INFO L462 AbstractCegarLoop]: Abstraction has 261363 states and 1149291 transitions. [2019-12-27 11:57:04,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 11:57:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 261363 states and 1149291 transitions. [2019-12-27 11:57:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-27 11:57:04,641 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 11:57:04,641 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 11:57:04,641 INFO L410 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 11:57:04,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 11:57:04,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1030124269, now seen corresponding path program 1 times [2019-12-27 11:57:04,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 11:57:04,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988608513] [2019-12-27 11:57:04,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 11:57:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 11:57:04,752 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 11:57:04,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988608513] [2019-12-27 11:57:04,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 11:57:04,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 11:57:04,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149941384] [2019-12-27 11:57:04,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 11:57:04,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 11:57:04,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 11:57:04,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-27 11:57:04,757 INFO L87 Difference]: Start difference. First operand 261363 states and 1149291 transitions. Second operand 7 states. Received shutdown request... [2019-12-27 11:57:11,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-27 11:57:11,858 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 11:57:11,863 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 11:57:11,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:57:11 BasicIcfg [2019-12-27 11:57:11,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 11:57:11,867 INFO L168 Benchmark]: Toolchain (without parser) took 182732.77 ms. Allocated memory was 139.5 MB in the beginning and 4.7 GB in the end (delta: 4.5 GB). Free memory was 102.3 MB in the beginning and 3.2 GB in the end (delta: -3.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,867 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.67 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 101.8 MB in the beginning and 155.3 MB in the end (delta: -53.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.60 ms. Allocated memory is still 201.3 MB. Free memory was 155.3 MB in the beginning and 152.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,870 INFO L168 Benchmark]: Boogie Preprocessor took 36.41 ms. Allocated memory is still 201.3 MB. Free memory was 152.1 MB in the beginning and 149.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,871 INFO L168 Benchmark]: RCFGBuilder took 848.52 ms. Allocated memory is still 201.3 MB. Free memory was 149.5 MB in the beginning and 103.0 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,871 INFO L168 Benchmark]: TraceAbstraction took 180974.22 ms. Allocated memory was 201.3 MB in the beginning and 4.7 GB in the end (delta: 4.5 GB). Free memory was 102.4 MB in the beginning and 3.2 GB in the end (delta: -3.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2019-12-27 11:57:11,875 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.67 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 101.8 MB in the beginning and 155.3 MB in the end (delta: -53.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.60 ms. Allocated memory is still 201.3 MB. Free memory was 155.3 MB in the beginning and 152.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.41 ms. Allocated memory is still 201.3 MB. Free memory was 152.1 MB in the beginning and 149.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 848.52 ms. Allocated memory is still 201.3 MB. Free memory was 149.5 MB in the beginning and 103.0 MB in the end (delta: 46.5 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 180974.22 ms. Allocated memory was 201.3 MB in the beginning and 4.7 GB in the end (delta: 4.5 GB). Free memory was 102.4 MB in the beginning and 3.2 GB in the end (delta: -3.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while BasicCegarLoop was constructing difference of abstraction (261363states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (11788 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while BasicCegarLoop was constructing difference of abstraction (261363states) and FLOYD_HOARE automaton (currently 10 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (11788 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 155 locations, 2 error locations. Result: TIMEOUT, OverallTime: 180.8s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 80.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3487 SDtfs, 4351 SDslu, 8181 SDs, 0 SdLazy, 3321 SolverSat, 259 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261363occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 84.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 307496 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 730 NumberOfCodeBlocks, 730 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 719 ConstructedInterpolants, 0 QuantifiedInterpolants, 103309 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 could not prove your program: Timeout Completed graceful shutdown