/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:41:01,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:41:01,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:41:01,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:41:01,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:41:01,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:41:01,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:41:01,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:41:01,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:41:01,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:41:01,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:41:01,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:41:01,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:41:01,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:41:01,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:41:01,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:41:01,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:41:01,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:41:01,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:41:01,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:41:01,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:41:01,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:41:01,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:41:01,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:41:01,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:41:01,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:41:01,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:41:01,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:41:01,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:41:01,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:41:01,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:41:01,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:41:01,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:41:01,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:41:01,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:41:01,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:41:01,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:41:01,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:41:01,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:41:01,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:41:01,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:41:01,879 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:41:01,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:41:01,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:41:01,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:41:01,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:41:01,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:41:01,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:41:01,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:41:01,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:41:01,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:41:01,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:41:01,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:41:01,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:41:01,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:41:01,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:41:01,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:41:01,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:41:01,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:41:01,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:41:01,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:41:01,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:41:01,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:41:01,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:41:01,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:41:01,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:41:02,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:41:02,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:41:02,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:41:02,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:41:02,225 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:41:02,226 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2020-10-05 23:41:02,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fad5c30/ec1ab95d98c349b19507a6a66cc9406c/FLAG042c677d1 [2020-10-05 23:41:02,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:41:02,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2020-10-05 23:41:02,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fad5c30/ec1ab95d98c349b19507a6a66cc9406c/FLAG042c677d1 [2020-10-05 23:41:03,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fad5c30/ec1ab95d98c349b19507a6a66cc9406c [2020-10-05 23:41:03,128 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:41:03,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:41:03,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:41:03,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:41:03,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:41:03,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230290f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03, skipping insertion in model container [2020-10-05 23:41:03,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:41:03,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:41:03,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:41:03,627 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:41:03,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:41:03,869 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:41:03,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03 WrapperNode [2020-10-05 23:41:03,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:41:03,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:41:03,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:41:03,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:41:03,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:41:03,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:41:03,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:41:03,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:41:03,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... [2020-10-05 23:41:03,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:41:03,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:41:03,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:41:03,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:41:03,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:41:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:41:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:41:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:41:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:41:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:41:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:41:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:41:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:41:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:41:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:41:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:41:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:41:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:41:04,042 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:41:04,414 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:41:04,414 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:41:04,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:41:04 BoogieIcfgContainer [2020-10-05 23:41:04,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:41:04,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:41:04,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:41:04,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:41:04,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:41:03" (1/3) ... [2020-10-05 23:41:04,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182d30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:41:04, skipping insertion in model container [2020-10-05 23:41:04,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:41:03" (2/3) ... [2020-10-05 23:41:04,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182d30d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:41:04, skipping insertion in model container [2020-10-05 23:41:04,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:41:04" (3/3) ... [2020-10-05 23:41:04,427 INFO L109 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2020-10-05 23:41:04,438 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:41:04,439 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:41:04,447 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:41:04,448 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:41:04,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,480 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,483 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,509 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,510 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,518 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,519 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,519 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:41:04,541 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:41:04,562 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:41:04,562 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:41:04,562 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:41:04,563 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:41:04,563 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:41:04,563 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:41:04,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:41:04,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:41:04,580 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-05 23:41:04,582 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:41:04,628 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:41:04,629 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:41:04,634 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:41:04,637 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:41:04,662 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:41:04,662 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:41:04,663 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-05 23:41:04,665 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:41:04,666 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:41:06,115 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2768 [2020-10-05 23:41:06,115 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-10-05 23:41:06,120 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-05 23:41:06,148 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 23:41:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 23:41:06,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:41:06,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:06,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:06,160 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:06,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1655297948, now seen corresponding path program 1 times [2020-10-05 23:41:06,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:06,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144711705] [2020-10-05 23:41:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:06,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144711705] [2020-10-05 23:41:06,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:06,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:41:06,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801904174] [2020-10-05 23:41:06,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:41:06,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:06,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:41:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:41:06,427 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 23:41:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:06,475 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-05 23:41:06,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:41:06,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:41:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:06,494 INFO L225 Difference]: With dead ends: 282 [2020-10-05 23:41:06,494 INFO L226 Difference]: Without dead ends: 218 [2020-10-05 23:41:06,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:41:06,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-05 23:41:06,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-05 23:41:06,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-05 23:41:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-05 23:41:06,585 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-05 23:41:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:06,587 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-05 23:41:06,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:41:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-05 23:41:06,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:41:06,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:06,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:06,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:41:06,592 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:06,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:06,593 INFO L82 PathProgramCache]: Analyzing trace with hash -225372369, now seen corresponding path program 1 times [2020-10-05 23:41:06,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:06,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926759726] [2020-10-05 23:41:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:06,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926759726] [2020-10-05 23:41:06,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:06,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:41:06,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468019800] [2020-10-05 23:41:06,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:41:06,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:06,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:41:06,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:41:06,726 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-05 23:41:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:06,752 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-05 23:41:06,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:41:06,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:41:06,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:06,755 INFO L225 Difference]: With dead ends: 242 [2020-10-05 23:41:06,755 INFO L226 Difference]: Without dead ends: 146 [2020-10-05 23:41:06,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:41:06,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-05 23:41:06,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-05 23:41:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-05 23:41:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-05 23:41:06,770 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-05 23:41:06,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:06,770 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-05 23:41:06,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:41:06,771 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-05 23:41:06,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:41:06,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:06,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:06,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:41:06,773 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:06,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:06,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1834242640, now seen corresponding path program 1 times [2020-10-05 23:41:06,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:06,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659302566] [2020-10-05 23:41:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:06,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659302566] [2020-10-05 23:41:06,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:06,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:41:06,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819016395] [2020-10-05 23:41:06,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:41:06,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:06,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:41:06,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:41:06,820 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-05 23:41:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:06,828 INFO L93 Difference]: Finished difference Result 134 states and 324 transitions. [2020-10-05 23:41:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:41:06,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 23:41:06,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:06,830 INFO L225 Difference]: With dead ends: 134 [2020-10-05 23:41:06,830 INFO L226 Difference]: Without dead ends: 134 [2020-10-05 23:41:06,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:41:06,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-05 23:41:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-10-05 23:41:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-05 23:41:06,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2020-10-05 23:41:06,840 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 11 [2020-10-05 23:41:06,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:06,840 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2020-10-05 23:41:06,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:41:06,841 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2020-10-05 23:41:06,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:41:06,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:06,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:06,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:41:06,843 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:06,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:06,843 INFO L82 PathProgramCache]: Analyzing trace with hash 554696714, now seen corresponding path program 1 times [2020-10-05 23:41:06,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:06,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972084511] [2020-10-05 23:41:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:06,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972084511] [2020-10-05 23:41:06,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:06,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:41:06,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100056994] [2020-10-05 23:41:06,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:41:06,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:06,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:41:06,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:41:06,924 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand 4 states. [2020-10-05 23:41:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:06,959 INFO L93 Difference]: Finished difference Result 157 states and 355 transitions. [2020-10-05 23:41:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:41:06,960 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-05 23:41:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:06,962 INFO L225 Difference]: With dead ends: 157 [2020-10-05 23:41:06,962 INFO L226 Difference]: Without dead ends: 117 [2020-10-05 23:41:06,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:41:06,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-05 23:41:06,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-05 23:41:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-05 23:41:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 262 transitions. [2020-10-05 23:41:06,972 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 262 transitions. Word has length 13 [2020-10-05 23:41:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:06,972 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 262 transitions. [2020-10-05 23:41:06,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:41:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 262 transitions. [2020-10-05 23:41:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:41:06,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:06,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:06,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:41:06,974 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:06,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:06,975 INFO L82 PathProgramCache]: Analyzing trace with hash 2052968077, now seen corresponding path program 1 times [2020-10-05 23:41:06,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:06,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835825282] [2020-10-05 23:41:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:07,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835825282] [2020-10-05 23:41:07,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:07,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:41:07,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806960061] [2020-10-05 23:41:07,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:41:07,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:07,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:41:07,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:41:07,037 INFO L87 Difference]: Start difference. First operand 117 states and 262 transitions. Second operand 5 states. [2020-10-05 23:41:07,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:07,088 INFO L93 Difference]: Finished difference Result 120 states and 254 transitions. [2020-10-05 23:41:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:41:07,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-05 23:41:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:07,090 INFO L225 Difference]: With dead ends: 120 [2020-10-05 23:41:07,090 INFO L226 Difference]: Without dead ends: 95 [2020-10-05 23:41:07,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:41:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-05 23:41:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-10-05 23:41:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-05 23:41:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 198 transitions. [2020-10-05 23:41:07,097 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 198 transitions. Word has length 14 [2020-10-05 23:41:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:07,098 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 198 transitions. [2020-10-05 23:41:07,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:41:07,098 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 198 transitions. [2020-10-05 23:41:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:41:07,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:07,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:07,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:41:07,100 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:07,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1697163721, now seen corresponding path program 1 times [2020-10-05 23:41:07,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:07,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003556253] [2020-10-05 23:41:07,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:07,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003556253] [2020-10-05 23:41:07,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:07,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:41:07,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10989385] [2020-10-05 23:41:07,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:41:07,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:07,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:41:07,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:41:07,163 INFO L87 Difference]: Start difference. First operand 95 states and 198 transitions. Second operand 6 states. [2020-10-05 23:41:07,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:07,211 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-10-05 23:41:07,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:41:07,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 23:41:07,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:07,212 INFO L225 Difference]: With dead ends: 92 [2020-10-05 23:41:07,212 INFO L226 Difference]: Without dead ends: 84 [2020-10-05 23:41:07,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:41:07,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-05 23:41:07,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-05 23:41:07,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-05 23:41:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-10-05 23:41:07,218 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 15 [2020-10-05 23:41:07,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:07,218 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-10-05 23:41:07,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:41:07,219 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-10-05 23:41:07,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:41:07,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:07,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:07,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:41:07,221 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:07,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:07,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1074918836, now seen corresponding path program 1 times [2020-10-05 23:41:07,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:07,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883224581] [2020-10-05 23:41:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:07,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:07,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883224581] [2020-10-05 23:41:07,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:07,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:41:07,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559457103] [2020-10-05 23:41:07,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:41:07,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:07,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:41:07,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:41:07,258 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-10-05 23:41:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:07,282 INFO L93 Difference]: Finished difference Result 143 states and 291 transitions. [2020-10-05 23:41:07,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:41:07,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 23:41:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:07,284 INFO L225 Difference]: With dead ends: 143 [2020-10-05 23:41:07,284 INFO L226 Difference]: Without dead ends: 65 [2020-10-05 23:41:07,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:41:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-05 23:41:07,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-05 23:41:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-05 23:41:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 130 transitions. [2020-10-05 23:41:07,288 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 130 transitions. Word has length 17 [2020-10-05 23:41:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:07,289 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 130 transitions. [2020-10-05 23:41:07,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:41:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 130 transitions. [2020-10-05 23:41:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:41:07,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:41:07,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:41:07,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:41:07,290 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:41:07,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:41:07,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1083077880, now seen corresponding path program 2 times [2020-10-05 23:41:07,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:41:07,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174423380] [2020-10-05 23:41:07,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:41:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:41:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:41:07,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174423380] [2020-10-05 23:41:07,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:41:07,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:41:07,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218920577] [2020-10-05 23:41:07,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:41:07,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:41:07,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:41:07,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:41:07,339 INFO L87 Difference]: Start difference. First operand 65 states and 130 transitions. Second operand 4 states. [2020-10-05 23:41:07,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:41:07,357 INFO L93 Difference]: Finished difference Result 64 states and 129 transitions. [2020-10-05 23:41:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:41:07,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 23:41:07,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:41:07,358 INFO L225 Difference]: With dead ends: 64 [2020-10-05 23:41:07,358 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:41:07,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:41:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:41:07,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:41:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:41:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:41:07,360 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-05 23:41:07,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:41:07,360 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:41:07,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:41:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:41:07,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:41:07,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:41:07,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:41:07 BasicIcfg [2020-10-05 23:41:07,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:41:07,368 INFO L168 Benchmark]: Toolchain (without parser) took 4237.61 ms. Allocated memory was 144.7 MB in the beginning and 251.7 MB in the end (delta: 107.0 MB). Free memory was 99.9 MB in the beginning and 215.8 MB in the end (delta: -115.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:41:07,369 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:41:07,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.11 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 160.6 MB in the end (delta: -61.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:41:07,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 202.4 MB. Free memory was 160.6 MB in the beginning and 158.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:41:07,372 INFO L168 Benchmark]: Boogie Preprocessor took 39.41 ms. Allocated memory is still 202.4 MB. Free memory was 158.5 MB in the beginning and 157.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:41:07,373 INFO L168 Benchmark]: RCFGBuilder took 457.79 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 134.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:41:07,374 INFO L168 Benchmark]: TraceAbstraction took 2946.65 ms. Allocated memory was 202.4 MB in the beginning and 251.7 MB in the end (delta: 49.3 MB). Free memory was 133.9 MB in the beginning and 215.8 MB in the end (delta: -82.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:41:07,379 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.11 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.5 MB in the beginning and 160.6 MB in the end (delta: -61.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 202.4 MB. Free memory was 160.6 MB in the beginning and 158.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.41 ms. Allocated memory is still 202.4 MB. Free memory was 158.5 MB in the beginning and 157.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.79 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 134.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2946.65 ms. Allocated memory was 202.4 MB in the beginning and 251.7 MB in the end (delta: 49.3 MB). Free memory was 133.9 MB in the beginning and 215.8 MB in the end (delta: -82.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 665 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2768 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 149 SDtfs, 135 SDslu, 205 SDs, 0 SdLazy, 110 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 3126 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...