/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 23:26:43,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 23:26:43,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 23:26:43,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 23:26:43,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 23:26:43,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 23:26:43,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 23:26:43,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 23:26:43,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 23:26:43,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 23:26:43,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 23:26:43,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 23:26:43,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 23:26:43,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 23:26:43,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 23:26:43,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 23:26:43,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 23:26:43,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 23:26:43,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 23:26:43,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 23:26:43,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 23:26:43,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 23:26:43,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 23:26:43,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 23:26:43,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 23:26:43,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 23:26:43,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 23:26:43,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 23:26:43,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 23:26:43,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 23:26:43,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 23:26:43,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 23:26:43,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 23:26:43,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 23:26:43,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 23:26:43,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 23:26:43,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 23:26:43,387 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 23:26:43,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 23:26:43,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 23:26:43,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 23:26:43,389 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 23:26:43,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 23:26:43,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 23:26:43,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 23:26:43,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 23:26:43,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 23:26:43,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 23:26:43,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 23:26:43,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 23:26:43,391 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 23:26:43,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 23:26:43,391 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 23:26:43,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 23:26:43,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 23:26:43,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 23:26:43,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 23:26:43,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 23:26:43,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:26:43,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 23:26:43,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 23:26:43,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 23:26:43,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 23:26:43,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 23:26:43,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 23:26:43,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 23:26:43,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 23:26:43,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 23:26:43,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 23:26:43,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 23:26:43,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 23:26:43,679 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 23:26:43,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-26 23:26:43,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f0ba95e/dab84fe73f7f47498fff60ff64d55c5a/FLAGf949f44ca [2019-12-26 23:26:44,239 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 23:26:44,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-26 23:26:44,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f0ba95e/dab84fe73f7f47498fff60ff64d55c5a/FLAGf949f44ca [2019-12-26 23:26:44,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f0ba95e/dab84fe73f7f47498fff60ff64d55c5a [2019-12-26 23:26:44,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 23:26:44,524 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 23:26:44,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 23:26:44,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 23:26:44,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 23:26:44,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:26:44" (1/1) ... [2019-12-26 23:26:44,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659be6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:44, skipping insertion in model container [2019-12-26 23:26:44,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 11:26:44" (1/1) ... [2019-12-26 23:26:44,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 23:26:44,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 23:26:45,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:26:45,127 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 23:26:45,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 23:26:45,245 INFO L208 MainTranslator]: Completed translation [2019-12-26 23:26:45,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45 WrapperNode [2019-12-26 23:26:45,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 23:26:45,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 23:26:45,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 23:26:45,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 23:26:45,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 23:26:45,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 23:26:45,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 23:26:45,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 23:26:45,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... [2019-12-26 23:26:45,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 23:26:45,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 23:26:45,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 23:26:45,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 23:26:45,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 23:26:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 23:26:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-26 23:26:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 23:26:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 23:26:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-26 23:26:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-26 23:26:45,387 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-26 23:26:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-26 23:26:45,389 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-26 23:26:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-26 23:26:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-26 23:26:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 23:26:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 23:26:45,392 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 23:26:45,799 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 23:26:45,799 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-26 23:26:45,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:26:45 BoogieIcfgContainer [2019-12-26 23:26:45,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 23:26:45,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 23:26:45,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 23:26:45,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 23:26:45,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 11:26:44" (1/3) ... [2019-12-26 23:26:45,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c74adad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:26:45, skipping insertion in model container [2019-12-26 23:26:45,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 11:26:45" (2/3) ... [2019-12-26 23:26:45,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c74adad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 11:26:45, skipping insertion in model container [2019-12-26 23:26:45,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 11:26:45" (3/3) ... [2019-12-26 23:26:45,808 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2019-12-26 23:26:45,817 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 23:26:45,817 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 23:26:45,825 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 23:26:45,827 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 23:26:45,855 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,856 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,856 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,857 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,857 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,857 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,858 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,858 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,858 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,858 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,859 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,859 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,859 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,859 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,860 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,860 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,860 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,860 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,864 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,864 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,865 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,865 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,872 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,872 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,894 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,895 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,895 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,895 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 23:26:45,909 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-26 23:26:45,927 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 23:26:45,927 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 23:26:45,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 23:26:45,928 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 23:26:45,928 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 23:26:45,928 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 23:26:45,928 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 23:26:45,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 23:26:45,942 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-26 23:26:45,945 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:26:46,004 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:26:46,004 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:26:46,010 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:26:46,012 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-26 23:26:46,033 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-26 23:26:46,033 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-26 23:26:46,034 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-26 23:26:46,037 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-26 23:26:46,038 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 23:26:47,609 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-26 23:26:47,679 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-26 23:26:47,680 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-26 23:26:47,685 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-26 23:26:47,698 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-26 23:26:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-26 23:26:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 23:26:47,709 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:26:47,711 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:26:47,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:26:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:26:47,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-26 23:26:47,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:26:47,737 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612606977] [2019-12-26 23:26:47,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:26:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:26:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:26:48,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612606977] [2019-12-26 23:26:48,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:26:48,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:26:48,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081077958] [2019-12-26 23:26:48,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:26:48,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:26:48,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:26:48,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:26:48,109 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-26 23:26:48,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:26:48,156 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-26 23:26:48,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:26:48,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 23:26:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:26:48,190 INFO L225 Difference]: With dead ends: 52 [2019-12-26 23:26:48,190 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:26:48,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:26:48,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:26:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-26 23:26:48,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-26 23:26:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-26 23:26:48,244 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-26 23:26:48,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:26:48,245 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-26 23:26:48,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:26:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-26 23:26:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:26:48,248 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:26:48,248 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:26:48,248 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:26:48,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:26:48,249 INFO L82 PathProgramCache]: Analyzing trace with hash 724458, now seen corresponding path program 1 times [2019-12-26 23:26:48,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:26:48,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556259376] [2019-12-26 23:26:48,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:26:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:26:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:26:48,342 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556259376] [2019-12-26 23:26:48,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:26:48,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:26:48,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099770748] [2019-12-26 23:26:48,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:26:48,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:26:48,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:26:48,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:26:48,347 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-26 23:26:48,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:26:48,361 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-26 23:26:48,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:26:48,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:26:48,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:26:48,364 INFO L225 Difference]: With dead ends: 42 [2019-12-26 23:26:48,364 INFO L226 Difference]: Without dead ends: 36 [2019-12-26 23:26:48,367 INFO L631 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 [2019-12-26 23:26:48,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-26 23:26:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-26 23:26:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-26 23:26:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-26 23:26:48,375 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-26 23:26:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:26:48,376 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-26 23:26:48,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:26:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-26 23:26:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-26 23:26:48,377 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:26:48,377 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:26:48,378 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:26:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:26:48,378 INFO L82 PathProgramCache]: Analyzing trace with hash 825365607, now seen corresponding path program 1 times [2019-12-26 23:26:48,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:26:48,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888651278] [2019-12-26 23:26:48,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:26:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:26:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:26:48,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888651278] [2019-12-26 23:26:48,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:26:48,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:26:48,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263620795] [2019-12-26 23:26:48,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:26:48,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:26:48,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:26:48,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:26:48,469 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-26 23:26:48,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:26:48,481 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-26 23:26:48,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:26:48,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-26 23:26:48,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:26:48,482 INFO L225 Difference]: With dead ends: 36 [2019-12-26 23:26:48,483 INFO L226 Difference]: Without dead ends: 28 [2019-12-26 23:26:48,483 INFO L631 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 [2019-12-26 23:26:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-26 23:26:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-26 23:26:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-26 23:26:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-26 23:26:48,488 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 9 [2019-12-26 23:26:48,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:26:48,488 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-26 23:26:48,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:26:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-26 23:26:48,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 23:26:48,489 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:26:48,489 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:26:48,489 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:26:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:26:48,490 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-12-26 23:26:48,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:26:48,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592357882] [2019-12-26 23:26:48,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:26:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:26:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:26:48,547 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592357882] [2019-12-26 23:26:48,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:26:48,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-26 23:26:48,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703348602] [2019-12-26 23:26:48,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 23:26:48,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:26:48,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 23:26:48,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:26:48,550 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 3 states. [2019-12-26 23:26:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:26:48,561 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2019-12-26 23:26:48,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 23:26:48,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 23:26:48,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:26:48,563 INFO L225 Difference]: With dead ends: 27 [2019-12-26 23:26:48,563 INFO L226 Difference]: Without dead ends: 21 [2019-12-26 23:26:48,563 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 23:26:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-26 23:26:48,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-26 23:26:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-26 23:26:48,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-26 23:26:48,568 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-26 23:26:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:26:48,569 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-26 23:26:48,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 23:26:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-26 23:26:48,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 23:26:48,570 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 23:26:48,571 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 23:26:48,571 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 23:26:48,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 23:26:48,572 INFO L82 PathProgramCache]: Analyzing trace with hash 527638481, now seen corresponding path program 1 times [2019-12-26 23:26:48,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 23:26:48,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662976051] [2019-12-26 23:26:48,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 23:26:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 23:26:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 23:26:48,673 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662976051] [2019-12-26 23:26:48,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 23:26:48,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 23:26:48,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421804533] [2019-12-26 23:26:48,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 23:26:48,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 23:26:48,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 23:26:48,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 23:26:48,676 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-26 23:26:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 23:26:48,700 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-26 23:26:48,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 23:26:48,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-26 23:26:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 23:26:48,701 INFO L225 Difference]: With dead ends: 20 [2019-12-26 23:26:48,702 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 23:26:48,702 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 23:26:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 23:26:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 23:26:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 23:26:48,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 23:26:48,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 23:26:48,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 23:26:48,703 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 23:26:48,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 23:26:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 23:26:48,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 23:26:48,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 11:26:48 BasicIcfg [2019-12-26 23:26:48,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 23:26:48,717 INFO L168 Benchmark]: Toolchain (without parser) took 4192.72 ms. Allocated memory was 146.8 MB in the beginning and 244.3 MB in the end (delta: 97.5 MB). Free memory was 102.8 MB in the beginning and 130.8 MB in the end (delta: -28.0 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,720 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.71 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.6 MB in the beginning and 160.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.63 ms. Allocated memory is still 205.0 MB. Free memory was 160.0 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,723 INFO L168 Benchmark]: Boogie Preprocessor took 28.08 ms. Allocated memory is still 205.0 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,723 INFO L168 Benchmark]: RCFGBuilder took 475.27 ms. Allocated memory is still 205.0 MB. Free memory was 156.8 MB in the beginning and 136.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,724 INFO L168 Benchmark]: TraceAbstraction took 2913.46 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 136.0 MB in the beginning and 130.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2019-12-26 23:26:48,729 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 720.71 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 102.6 MB in the beginning and 160.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.63 ms. Allocated memory is still 205.0 MB. Free memory was 160.0 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.08 ms. Allocated memory is still 205.0 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.27 ms. Allocated memory is still 205.0 MB. Free memory was 156.8 MB in the beginning and 136.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2913.46 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 136.0 MB in the beginning and 130.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 10 SDslu, 30 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...