/usr/bin/java -Xmx16000000000 -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/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:05:25,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:05:25,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:05:25,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:05:25,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:05:25,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:05:25,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:05:25,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:05:25,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:05:25,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:05:25,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:05:25,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:05:25,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:05:25,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:05:25,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:05:25,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:05:25,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:05:25,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:05:25,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:05:25,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:05:25,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:05:25,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:05:25,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:05:25,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:05:25,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:05:25,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:05:25,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:05:25,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:05:25,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:05:25,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:05:25,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:05:25,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:05:25,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:05:25,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:05:25,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:05:25,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:05:25,355 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 [2020-10-11 15:05:25,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:05:25,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:05:25,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:05:25,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:05:25,398 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:05:25,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:05:25,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:05:25,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:05:25,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:05:25,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:05:25,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:05:25,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:05:25,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:05:25,401 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:05:25,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:05:25,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:05:25,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:05:25,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:05:25,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:05:25,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:05:25,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:05:25,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:05:25,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:05:25,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:05:25,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:05:25,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:05:25,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:05:25,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:05:25,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:05:25,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:05:25,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:05:25,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:05:25,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:05:25,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:05:25,742 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:05:25,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-10-11 15:05:25,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669eebee1/3e0efbe934ad4256a3ba8138a4739d10/FLAGb17234661 [2020-10-11 15:05:26,299 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:05:26,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-10-11 15:05:26,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669eebee1/3e0efbe934ad4256a3ba8138a4739d10/FLAGb17234661 [2020-10-11 15:05:26,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/669eebee1/3e0efbe934ad4256a3ba8138a4739d10 [2020-10-11 15:05:26,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:05:26,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:05:26,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:05:26,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:05:26,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:05:26,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:05:26" (1/1) ... [2020-10-11 15:05:26,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4952b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:26, skipping insertion in model container [2020-10-11 15:05:26,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:05:26" (1/1) ... [2020-10-11 15:05:26,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:05:26,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:05:27,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:05:27,182 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:05:27,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:05:27,325 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:05:27,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27 WrapperNode [2020-10-11 15:05:27,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:05:27,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:05:27,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:05:27,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:05:27,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:05:27,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:05:27,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:05:27,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:05:27,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (1/1) ... [2020-10-11 15:05:27,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:05:27,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:05:27,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:05:27,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:05:27,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (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 [2020-10-11 15:05:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:05:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:05:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:05:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:05:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:05:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:05:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:05:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:05:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:05:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:05:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 15:05:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 15:05:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:05:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:05:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:05:27,499 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:05:27,903 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:05:27,903 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:05:27,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:05:27 BoogieIcfgContainer [2020-10-11 15:05:27,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:05:27,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:05:27,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:05:27,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:05:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:05:26" (1/3) ... [2020-10-11 15:05:27,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e01dc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:05:27, skipping insertion in model container [2020-10-11 15:05:27,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:05:27" (2/3) ... [2020-10-11 15:05:27,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e01dc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:05:27, skipping insertion in model container [2020-10-11 15:05:27,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:05:27" (3/3) ... [2020-10-11 15:05:27,915 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-10-11 15:05:27,927 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:05:27,928 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:05:27,935 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:05:27,936 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:05:27,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,973 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,974 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,975 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,976 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,976 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,978 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,978 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,978 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,979 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,979 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,980 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,980 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,980 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,985 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,986 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,986 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:27,999 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,004 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:05:28,034 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 15:05:28,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:05:28,058 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:05:28,058 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:05:28,058 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:05:28,058 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:05:28,058 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:05:28,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:05:28,059 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:05:28,074 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:05:28,077 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-11 15:05:28,080 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-11 15:05:28,082 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-11 15:05:28,135 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-11 15:05:28,135 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:05:28,141 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-11 15:05:28,145 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-11 15:05:29,685 INFO L132 LiptonReduction]: Checked pairs total: 3057 [2020-10-11 15:05:29,685 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-11 15:05:29,692 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-11 15:05:29,752 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-11 15:05:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-11 15:05:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:05:29,765 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:29,766 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:29,767 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:29,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:29,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-11 15:05:29,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:29,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277085892] [2020-10-11 15:05:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:29,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277085892] [2020-10-11 15:05:29,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:29,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:29,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406418223] [2020-10-11 15:05:29,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-11 15:05:29,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:30,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-11 15:05:30,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:05:30,019 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-11 15:05:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:30,074 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-11 15:05:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-11 15:05:30,075 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-11 15:05:30,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:30,104 INFO L225 Difference]: With dead ends: 850 [2020-10-11 15:05:30,104 INFO L226 Difference]: Without dead ends: 706 [2020-10-11 15:05:30,106 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-11 15:05:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-11 15:05:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-11 15:05:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-11 15:05:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-11 15:05:30,226 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-11 15:05:30,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:30,228 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-11 15:05:30,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-11 15:05:30,228 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-11 15:05:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:05:30,231 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:30,231 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:30,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:05:30,232 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:30,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:30,232 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-11 15:05:30,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:30,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626119217] [2020-10-11 15:05:30,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:30,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626119217] [2020-10-11 15:05:30,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:30,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:30,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899178940] [2020-10-11 15:05:30,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:30,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:30,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:30,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:30,388 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-11 15:05:30,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:30,443 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-11 15:05:30,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:30,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:05:30,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:30,451 INFO L225 Difference]: With dead ends: 802 [2020-10-11 15:05:30,451 INFO L226 Difference]: Without dead ends: 658 [2020-10-11 15:05:30,452 INFO L673 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 [2020-10-11 15:05:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-11 15:05:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-11 15:05:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-11 15:05:30,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-11 15:05:30,485 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-11 15:05:30,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:30,486 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-11 15:05:30,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:30,486 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-11 15:05:30,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:05:30,489 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:30,489 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:30,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:05:30,489 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:30,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1501347001, now seen corresponding path program 1 times [2020-10-11 15:05:30,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:30,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090622003] [2020-10-11 15:05:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:30,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090622003] [2020-10-11 15:05:30,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:30,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:30,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440211426] [2020-10-11 15:05:30,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:30,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:30,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:30,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:30,563 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-11 15:05:30,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:30,594 INFO L93 Difference]: Finished difference Result 718 states and 2348 transitions. [2020-10-11 15:05:30,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:30,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:05:30,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:30,600 INFO L225 Difference]: With dead ends: 718 [2020-10-11 15:05:30,600 INFO L226 Difference]: Without dead ends: 598 [2020-10-11 15:05:30,601 INFO L673 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 [2020-10-11 15:05:30,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-11 15:05:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-11 15:05:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-11 15:05:30,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1992 transitions. [2020-10-11 15:05:30,625 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1992 transitions. Word has length 12 [2020-10-11 15:05:30,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:30,625 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 1992 transitions. [2020-10-11 15:05:30,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1992 transitions. [2020-10-11 15:05:30,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:05:30,627 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:30,627 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:30,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:05:30,628 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:30,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1422147839, now seen corresponding path program 1 times [2020-10-11 15:05:30,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:30,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710071640] [2020-10-11 15:05:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:30,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710071640] [2020-10-11 15:05:30,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:30,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:05:30,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91775727] [2020-10-11 15:05:30,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:30,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:30,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:30,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:30,691 INFO L87 Difference]: Start difference. First operand 598 states and 1992 transitions. Second operand 4 states. [2020-10-11 15:05:30,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:30,719 INFO L93 Difference]: Finished difference Result 634 states and 2058 transitions. [2020-10-11 15:05:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:30,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-11 15:05:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:30,724 INFO L225 Difference]: With dead ends: 634 [2020-10-11 15:05:30,725 INFO L226 Difference]: Without dead ends: 562 [2020-10-11 15:05:30,725 INFO L673 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 [2020-10-11 15:05:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-10-11 15:05:30,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-10-11 15:05:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-11 15:05:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1854 transitions. [2020-10-11 15:05:30,748 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1854 transitions. Word has length 13 [2020-10-11 15:05:30,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:30,749 INFO L481 AbstractCegarLoop]: Abstraction has 562 states and 1854 transitions. [2020-10-11 15:05:30,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:30,749 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1854 transitions. [2020-10-11 15:05:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:05:30,751 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:30,751 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:30,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:05:30,751 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:30,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:30,752 INFO L82 PathProgramCache]: Analyzing trace with hash -464753782, now seen corresponding path program 1 times [2020-10-11 15:05:30,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:30,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118541489] [2020-10-11 15:05:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:30,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118541489] [2020-10-11 15:05:30,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:30,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:30,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450552453] [2020-10-11 15:05:30,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:05:30,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:30,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:05:30,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:05:30,816 INFO L87 Difference]: Start difference. First operand 562 states and 1854 transitions. Second operand 5 states. [2020-10-11 15:05:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:30,873 INFO L93 Difference]: Finished difference Result 834 states and 2710 transitions. [2020-10-11 15:05:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:05:30,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-11 15:05:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:30,878 INFO L225 Difference]: With dead ends: 834 [2020-10-11 15:05:30,878 INFO L226 Difference]: Without dead ends: 450 [2020-10-11 15:05:30,879 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:05:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-11 15:05:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-11 15:05:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-11 15:05:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1444 transitions. [2020-10-11 15:05:30,896 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1444 transitions. Word has length 14 [2020-10-11 15:05:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:30,896 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 1444 transitions. [2020-10-11 15:05:30,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:05:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1444 transitions. [2020-10-11 15:05:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:05:30,898 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:30,898 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:30,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:05:30,899 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:30,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash -453774883, now seen corresponding path program 1 times [2020-10-11 15:05:30,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:30,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683494276] [2020-10-11 15:05:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:30,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683494276] [2020-10-11 15:05:30,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:30,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:05:30,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388962375] [2020-10-11 15:05:30,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:05:30,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:30,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:05:30,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:05:30,956 INFO L87 Difference]: Start difference. First operand 450 states and 1444 transitions. Second operand 5 states. [2020-10-11 15:05:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,034 INFO L93 Difference]: Finished difference Result 834 states and 2560 transitions. [2020-10-11 15:05:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 15:05:31,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:05:31,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,038 INFO L225 Difference]: With dead ends: 834 [2020-10-11 15:05:31,039 INFO L226 Difference]: Without dead ends: 410 [2020-10-11 15:05:31,040 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-11 15:05:31,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-11 15:05:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 346. [2020-10-11 15:05:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-11 15:05:31,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 1030 transitions. [2020-10-11 15:05:31,055 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 1030 transitions. Word has length 15 [2020-10-11 15:05:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,055 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 1030 transitions. [2020-10-11 15:05:31,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:05:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1030 transitions. [2020-10-11 15:05:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:05:31,057 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,057 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:05:31,057 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,058 INFO L82 PathProgramCache]: Analyzing trace with hash -99110680, now seen corresponding path program 1 times [2020-10-11 15:05:31,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408722454] [2020-10-11 15:05:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408722454] [2020-10-11 15:05:31,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:31,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745691913] [2020-10-11 15:05:31,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:31,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:31,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:31,146 INFO L87 Difference]: Start difference. First operand 346 states and 1030 transitions. Second operand 4 states. [2020-10-11 15:05:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,178 INFO L93 Difference]: Finished difference Result 494 states and 1402 transitions. [2020-10-11 15:05:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:31,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-11 15:05:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,182 INFO L225 Difference]: With dead ends: 494 [2020-10-11 15:05:31,182 INFO L226 Difference]: Without dead ends: 370 [2020-10-11 15:05:31,183 INFO L673 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 [2020-10-11 15:05:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-11 15:05:31,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 322. [2020-10-11 15:05:31,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-11 15:05:31,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 910 transitions. [2020-10-11 15:05:31,197 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 910 transitions. Word has length 15 [2020-10-11 15:05:31,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,198 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 910 transitions. [2020-10-11 15:05:31,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:31,198 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 910 transitions. [2020-10-11 15:05:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:05:31,199 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,200 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:05:31,200 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,201 INFO L82 PathProgramCache]: Analyzing trace with hash -96752386, now seen corresponding path program 1 times [2020-10-11 15:05:31,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081779660] [2020-10-11 15:05:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081779660] [2020-10-11 15:05:31,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:31,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621398178] [2020-10-11 15:05:31,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:05:31,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:05:31,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:05:31,285 INFO L87 Difference]: Start difference. First operand 322 states and 910 transitions. Second operand 5 states. [2020-10-11 15:05:31,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,321 INFO L93 Difference]: Finished difference Result 454 states and 1236 transitions. [2020-10-11 15:05:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:31,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-11 15:05:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,323 INFO L225 Difference]: With dead ends: 454 [2020-10-11 15:05:31,324 INFO L226 Difference]: Without dead ends: 238 [2020-10-11 15:05:31,324 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:05:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-11 15:05:31,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-11 15:05:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-11 15:05:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 639 transitions. [2020-10-11 15:05:31,332 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 639 transitions. Word has length 15 [2020-10-11 15:05:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,333 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 639 transitions. [2020-10-11 15:05:31,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:05:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 639 transitions. [2020-10-11 15:05:31,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-11 15:05:31,334 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,334 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:05:31,335 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,335 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-10-11 15:05:31,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366574848] [2020-10-11 15:05:31,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366574848] [2020-10-11 15:05:31,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:05:31,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132714439] [2020-10-11 15:05:31,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:05:31,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:05:31,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:05:31,393 INFO L87 Difference]: Start difference. First operand 238 states and 639 transitions. Second operand 4 states. [2020-10-11 15:05:31,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,439 INFO L93 Difference]: Finished difference Result 283 states and 696 transitions. [2020-10-11 15:05:31,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:05:31,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-11 15:05:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,441 INFO L225 Difference]: With dead ends: 283 [2020-10-11 15:05:31,442 INFO L226 Difference]: Without dead ends: 214 [2020-10-11 15:05:31,442 INFO L673 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 [2020-10-11 15:05:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-11 15:05:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-11 15:05:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-11 15:05:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 534 transitions. [2020-10-11 15:05:31,475 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 534 transitions. Word has length 15 [2020-10-11 15:05:31,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,476 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 534 transitions. [2020-10-11 15:05:31,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:05:31,476 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 534 transitions. [2020-10-11 15:05:31,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 15:05:31,477 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,477 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 15:05:31,477 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times [2020-10-11 15:05:31,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597404420] [2020-10-11 15:05:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597404420] [2020-10-11 15:05:31,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:05:31,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999358433] [2020-10-11 15:05:31,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:05:31,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:05:31,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:05:31,531 INFO L87 Difference]: Start difference. First operand 214 states and 534 transitions. Second operand 5 states. [2020-10-11 15:05:31,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,576 INFO L93 Difference]: Finished difference Result 211 states and 465 transitions. [2020-10-11 15:05:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:05:31,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-11 15:05:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,578 INFO L225 Difference]: With dead ends: 211 [2020-10-11 15:05:31,578 INFO L226 Difference]: Without dead ends: 158 [2020-10-11 15:05:31,579 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:05:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-11 15:05:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-11 15:05:31,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-11 15:05:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 339 transitions. [2020-10-11 15:05:31,584 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 339 transitions. Word has length 16 [2020-10-11 15:05:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,584 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 339 transitions. [2020-10-11 15:05:31,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:05:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 339 transitions. [2020-10-11 15:05:31,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:05:31,585 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,586 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 15:05:31,586 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-10-11 15:05:31,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78990004] [2020-10-11 15:05:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78990004] [2020-10-11 15:05:31,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 15:05:31,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742367443] [2020-10-11 15:05:31,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:05:31,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:05:31,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:05:31,649 INFO L87 Difference]: Start difference. First operand 158 states and 339 transitions. Second operand 6 states. [2020-10-11 15:05:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,714 INFO L93 Difference]: Finished difference Result 134 states and 268 transitions. [2020-10-11 15:05:31,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:05:31,715 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-11 15:05:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,716 INFO L225 Difference]: With dead ends: 134 [2020-10-11 15:05:31,716 INFO L226 Difference]: Without dead ends: 95 [2020-10-11 15:05:31,716 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:05:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-11 15:05:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-10-11 15:05:31,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-11 15:05:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 181 transitions. [2020-10-11 15:05:31,721 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 181 transitions. Word has length 17 [2020-10-11 15:05:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,721 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 181 transitions. [2020-10-11 15:05:31,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:05:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 181 transitions. [2020-10-11 15:05:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-11 15:05:31,722 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,722 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 15:05:31,722 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,723 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-10-11 15:05:31,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560593042] [2020-10-11 15:05:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560593042] [2020-10-11 15:05:31,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:05:31,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283525145] [2020-10-11 15:05:31,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:05:31,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:05:31,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:05:31,798 INFO L87 Difference]: Start difference. First operand 95 states and 181 transitions. Second operand 5 states. [2020-10-11 15:05:31,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,830 INFO L93 Difference]: Finished difference Result 109 states and 198 transitions. [2020-10-11 15:05:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:05:31,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-11 15:05:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,831 INFO L225 Difference]: With dead ends: 109 [2020-10-11 15:05:31,831 INFO L226 Difference]: Without dead ends: 93 [2020-10-11 15:05:31,832 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:05:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-11 15:05:31,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-11 15:05:31,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-11 15:05:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 169 transitions. [2020-10-11 15:05:31,836 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 169 transitions. Word has length 19 [2020-10-11 15:05:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,836 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 169 transitions. [2020-10-11 15:05:31,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:05:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 169 transitions. [2020-10-11 15:05:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-11 15:05:31,837 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:05:31,837 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:05:31,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 15:05:31,837 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:05:31,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:05:31,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-10-11 15:05:31,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:05:31,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094138765] [2020-10-11 15:05:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:05:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:05:31,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:05:31,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094138765] [2020-10-11 15:05:31,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:05:31,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 15:05:31,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603002616] [2020-10-11 15:05:31,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 15:05:31,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:05:31,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 15:05:31,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:05:31,935 INFO L87 Difference]: Start difference. First operand 91 states and 169 transitions. Second operand 7 states. [2020-10-11 15:05:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:05:31,981 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-10-11 15:05:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:05:31,982 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-11 15:05:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:05:31,982 INFO L225 Difference]: With dead ends: 81 [2020-10-11 15:05:31,982 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:05:31,982 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-11 15:05:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:05:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:05:31,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:05:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:05:31,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-11 15:05:31,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:05:31,985 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:05:31,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 15:05:31,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:05:31,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:05:31,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 15:05:31,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:05:31 BasicIcfg [2020-10-11 15:05:31,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:05:31,997 INFO L168 Benchmark]: Toolchain (without parser) took 5372.81 ms. Allocated memory was 248.5 MB in the beginning and 426.8 MB in the end (delta: 178.3 MB). Free memory was 203.0 MB in the beginning and 316.7 MB in the end (delta: -113.7 MB). Peak memory consumption was 64.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:31,998 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 248.5 MB. Free memory was 226.6 MB in the beginning and 225.7 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 15:05:31,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.22 ms. Allocated memory was 248.5 MB in the beginning and 306.7 MB in the end (delta: 58.2 MB). Free memory was 203.0 MB in the beginning and 257.6 MB in the end (delta: -54.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:31,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.06 ms. Allocated memory is still 306.7 MB. Free memory was 257.6 MB in the beginning and 255.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:32,003 INFO L168 Benchmark]: Boogie Preprocessor took 26.51 ms. Allocated memory is still 306.7 MB. Free memory was 255.1 MB in the beginning and 253.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:32,005 INFO L168 Benchmark]: RCFGBuilder took 483.25 ms. Allocated memory is still 306.7 MB. Free memory was 253.4 MB in the beginning and 229.0 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:32,006 INFO L168 Benchmark]: TraceAbstraction took 4083.11 ms. Allocated memory was 306.7 MB in the beginning and 426.8 MB in the end (delta: 120.1 MB). Free memory was 229.0 MB in the beginning and 316.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. [2020-10-11 15:05:32,014 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 248.5 MB. Free memory was 226.6 MB in the beginning and 225.7 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 707.22 ms. Allocated memory was 248.5 MB in the beginning and 306.7 MB in the end (delta: 58.2 MB). Free memory was 203.0 MB in the beginning and 257.6 MB in the end (delta: -54.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 68.06 ms. Allocated memory is still 306.7 MB. Free memory was 257.6 MB in the beginning and 255.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.51 ms. Allocated memory is still 306.7 MB. Free memory was 255.1 MB in the beginning and 253.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 483.25 ms. Allocated memory is still 306.7 MB. Free memory was 253.4 MB in the beginning and 229.0 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4083.11 ms. Allocated memory was 306.7 MB in the beginning and 426.8 MB in the end (delta: 120.1 MB). Free memory was 229.0 MB in the beginning and 316.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1223 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 103 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 91 PlacesBefore, 39 PlacesAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 3057 MoverChecksTotal - 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 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 347 SDtfs, 346 SDslu, 602 SDs, 0 SdLazy, 217 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 7404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...