/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/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:39:34,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:39:34,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:39:34,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:39:34,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:39:34,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:39:34,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:39:34,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:39:34,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:39:34,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:39:34,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:39:34,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:39:34,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:39:34,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:39:34,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:39:34,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:39:34,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:39:34,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:39:34,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:39:34,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:39:34,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:39:34,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:39:34,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:39:34,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:39:34,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:39:34,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:39:34,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:39:34,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:39:34,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:39:34,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:39:34,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:39:34,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:39:34,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:39:34,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:39:34,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:39:34,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:39:34,584 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 23:39:34,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:39:34,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:39:34,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:39:34,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:39:34,608 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:39:34,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:39:34,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:39:34,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:39:34,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:39:34,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:39:34,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:39:34,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:39:34,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:39:34,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:39:34,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:39:34,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:39:34,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:39:34,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:39:34,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:39:34,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:39:34,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:39:34,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:39:34,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:39:34,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:39:34,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:39:34,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:39:34,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:39:34,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:39:34,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:39:34,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:39:34,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:39:34,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:39:34,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:39:34,936 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:39:34,937 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2020-10-05 23:39:34,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00f77ec0/2c961886b25e4a749a0a43b6a59a5500/FLAGaf9a7bb89 [2020-10-05 23:39:35,538 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:39:35,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2020-10-05 23:39:35,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00f77ec0/2c961886b25e4a749a0a43b6a59a5500/FLAGaf9a7bb89 [2020-10-05 23:39:35,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00f77ec0/2c961886b25e4a749a0a43b6a59a5500 [2020-10-05 23:39:35,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:39:35,839 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:39:35,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:39:35,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:39:35,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:39:35,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:39:35" (1/1) ... [2020-10-05 23:39:35,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c932ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:35, skipping insertion in model container [2020-10-05 23:39:35,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:39:35" (1/1) ... [2020-10-05 23:39:35,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:39:35,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:39:36,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:39:36,380 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:39:36,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:39:36,502 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:39:36,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36 WrapperNode [2020-10-05 23:39:36,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:39:36,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:39:36,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:39:36,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:39:36,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:39:36,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:39:36,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:39:36,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:39:36,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (1/1) ... [2020-10-05 23:39:36,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:39:36,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:39:36,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:39:36,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:39:36,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (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 23:39:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:39:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:39:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:39:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:39:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:39:36,662 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:39:36,663 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:39:36,663 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:39:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 23:39:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 23:39:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:39:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:39:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:39:36,667 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 23:39:37,082 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:39:37,083 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 23:39:37,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:39:37 BoogieIcfgContainer [2020-10-05 23:39:37,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:39:37,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:39:37,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:39:37,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:39:37,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:39:35" (1/3) ... [2020-10-05 23:39:37,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1318de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:39:37, skipping insertion in model container [2020-10-05 23:39:37,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:39:36" (2/3) ... [2020-10-05 23:39:37,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1318de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:39:37, skipping insertion in model container [2020-10-05 23:39:37,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:39:37" (3/3) ... [2020-10-05 23:39:37,095 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2020-10-05 23:39:37,105 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:39:37,105 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:39:37,114 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 23:39:37,115 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:39:37,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,147 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,148 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,155 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,166 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:39:37,183 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:39:37,207 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:39:37,207 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:39:37,208 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:39:37,208 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:39:37,208 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:39:37,208 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:39:37,208 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:39:37,209 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:39:37,226 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-05 23:39:37,229 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:39:37,274 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:39:37,275 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:39:37,280 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 23:39:37,283 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-05 23:39:37,306 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-05 23:39:37,306 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:39:37,307 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 23:39:37,310 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-05 23:39:37,311 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:39:38,802 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2190 [2020-10-05 23:39:38,802 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-10-05 23:39:38,806 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-05 23:39:38,831 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-05 23:39:38,833 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-05 23:39:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:39:38,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:38,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:38,842 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:38,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:38,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1620259193, now seen corresponding path program 1 times [2020-10-05 23:39:38,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:38,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654828484] [2020-10-05 23:39:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,090 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 23:39:39,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654828484] [2020-10-05 23:39:39,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:39:39,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533766415] [2020-10-05 23:39:39,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:39:39,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:39:39,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:39:39,118 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-05 23:39:39,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,163 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-05 23:39:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:39:39,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 23:39:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,182 INFO L225 Difference]: With dead ends: 290 [2020-10-05 23:39:39,183 INFO L226 Difference]: Without dead ends: 226 [2020-10-05 23:39:39,184 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 23:39:39,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-05 23:39:39,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-05 23:39:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-05 23:39:39,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-05 23:39:39,252 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-05 23:39:39,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,253 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-05 23:39:39,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:39:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-05 23:39:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:39:39,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:39,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:39:39,256 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1042338189, now seen corresponding path program 1 times [2020-10-05 23:39:39,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221256183] [2020-10-05 23:39:39,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,323 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 23:39:39,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221256183] [2020-10-05 23:39:39,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:39:39,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52982735] [2020-10-05 23:39:39,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:39:39,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:39:39,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:39:39,327 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-05 23:39:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,338 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-10-05 23:39:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:39:39,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 23:39:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,341 INFO L225 Difference]: With dead ends: 214 [2020-10-05 23:39:39,342 INFO L226 Difference]: Without dead ends: 214 [2020-10-05 23:39:39,343 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 23:39:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-05 23:39:39,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-05 23:39:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-05 23:39:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-10-05 23:39:39,362 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-10-05 23:39:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,362 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-10-05 23:39:39,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:39:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-10-05 23:39:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:39:39,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:39,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:39:39,365 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2047253273, now seen corresponding path program 1 times [2020-10-05 23:39:39,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17719833] [2020-10-05 23:39:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,455 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 23:39:39,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17719833] [2020-10-05 23:39:39,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:39:39,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459035035] [2020-10-05 23:39:39,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:39:39,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:39:39,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:39:39,458 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand 4 states. [2020-10-05 23:39:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,485 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-10-05 23:39:39,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:39:39,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-05 23:39:39,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,487 INFO L225 Difference]: With dead ends: 240 [2020-10-05 23:39:39,488 INFO L226 Difference]: Without dead ends: 144 [2020-10-05 23:39:39,488 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 23:39:39,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-05 23:39:39,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-05 23:39:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-05 23:39:39,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-10-05 23:39:39,498 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-10-05 23:39:39,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,498 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-10-05 23:39:39,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:39:39,498 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-10-05 23:39:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 23:39:39,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:39,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:39:39,501 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,501 INFO L82 PathProgramCache]: Analyzing trace with hash 315672505, now seen corresponding path program 1 times [2020-10-05 23:39:39,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019135606] [2020-10-05 23:39:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,573 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 23:39:39,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019135606] [2020-10-05 23:39:39,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:39:39,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696145078] [2020-10-05 23:39:39,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:39:39,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:39:39,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:39:39,576 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states. [2020-10-05 23:39:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,612 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-10-05 23:39:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:39:39,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 23:39:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,614 INFO L225 Difference]: With dead ends: 164 [2020-10-05 23:39:39,614 INFO L226 Difference]: Without dead ends: 124 [2020-10-05 23:39:39,615 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 23:39:39,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-05 23:39:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-05 23:39:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-05 23:39:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-10-05 23:39:39,621 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-10-05 23:39:39,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,622 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-10-05 23:39:39,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:39:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-10-05 23:39:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:39:39,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:39,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:39:39,624 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,624 INFO L82 PathProgramCache]: Analyzing trace with hash 852950147, now seen corresponding path program 1 times [2020-10-05 23:39:39,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474339295] [2020-10-05 23:39:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,679 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 23:39:39,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474339295] [2020-10-05 23:39:39,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:39:39,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464733427] [2020-10-05 23:39:39,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:39:39,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:39:39,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:39:39,682 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states. [2020-10-05 23:39:39,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,735 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-10-05 23:39:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:39:39,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 23:39:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,738 INFO L225 Difference]: With dead ends: 122 [2020-10-05 23:39:39,738 INFO L226 Difference]: Without dead ends: 97 [2020-10-05 23:39:39,739 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 23:39:39,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-05 23:39:39,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-05 23:39:39,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-05 23:39:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-10-05 23:39:39,743 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-10-05 23:39:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,744 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-10-05 23:39:39,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:39:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-10-05 23:39:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:39:39,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:39,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:39:39,746 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1634628682, now seen corresponding path program 1 times [2020-10-05 23:39:39,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026888063] [2020-10-05 23:39:39,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,773 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 23:39:39,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026888063] [2020-10-05 23:39:39,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:39:39,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372397689] [2020-10-05 23:39:39,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:39:39,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:39:39,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:39:39,776 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states. [2020-10-05 23:39:39,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,788 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-10-05 23:39:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:39:39,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-05 23:39:39,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,790 INFO L225 Difference]: With dead ends: 115 [2020-10-05 23:39:39,790 INFO L226 Difference]: Without dead ends: 98 [2020-10-05 23:39:39,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:39:39,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-05 23:39:39,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-10-05 23:39:39,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-05 23:39:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-10-05 23:39:39,794 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-10-05 23:39:39,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,794 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-10-05 23:39:39,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:39:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-10-05 23:39:39,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-05 23:39:39,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:39:39,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:39:39,797 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1887879687, now seen corresponding path program 1 times [2020-10-05 23:39:39,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84750125] [2020-10-05 23:39:39,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,876 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 23:39:39,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84750125] [2020-10-05 23:39:39,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:39:39,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847508996] [2020-10-05 23:39:39,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:39:39,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:39:39,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:39:39,878 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states. [2020-10-05 23:39:39,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,939 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-10-05 23:39:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:39:39,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-05 23:39:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,940 INFO L225 Difference]: With dead ends: 92 [2020-10-05 23:39:39,940 INFO L226 Difference]: Without dead ends: 36 [2020-10-05 23:39:39,941 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 23:39:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-05 23:39:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-05 23:39:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-05 23:39:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-10-05 23:39:39,943 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-10-05 23:39:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,943 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-10-05 23:39:39,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:39:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-10-05 23:39:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:39:39,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:39:39,944 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 23:39:39,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:39:39,945 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:39:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:39:39,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1759545272, now seen corresponding path program 1 times [2020-10-05 23:39:39,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:39:39,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923408306] [2020-10-05 23:39:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:39:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:39:39,977 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 23:39:39,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923408306] [2020-10-05 23:39:39,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:39:39,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:39:39,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757307520] [2020-10-05 23:39:39,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:39:39,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:39:39,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:39:39,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:39:39,980 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-10-05 23:39:39,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:39:39,991 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-10-05 23:39:39,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:39:39,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 23:39:39,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:39:39,992 INFO L225 Difference]: With dead ends: 35 [2020-10-05 23:39:39,992 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:39:39,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:39:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:39:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:39:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:39:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:39:39,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-05 23:39:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:39:39,993 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:39:39,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:39:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:39:39,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:39:39,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 23:39:39,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:39:39 BasicIcfg [2020-10-05 23:39:39,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:39:40,001 INFO L168 Benchmark]: Toolchain (without parser) took 4161.59 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 100.8 MB in the beginning and 195.6 MB in the end (delta: -94.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:40,002 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:39:40,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.24 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 159.7 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:40,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 202.9 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:40,005 INFO L168 Benchmark]: Boogie Preprocessor took 29.69 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:40,006 INFO L168 Benchmark]: RCFGBuilder took 500.49 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 134.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:39:40,006 INFO L168 Benchmark]: TraceAbstraction took 2911.52 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 133.5 MB in the beginning and 195.6 MB in the end (delta: -62.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 23:39:40,011 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.24 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 159.7 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 202.9 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.69 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 500.49 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 134.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2911.52 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 133.5 MB in the beginning and 195.6 MB in the end (delta: -62.2 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, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 650 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2190 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 145 SDtfs, 124 SDslu, 177 SDs, 0 SdLazy, 97 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3172 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...