/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:44:24,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:44:24,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:44:24,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:44:24,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:44:24,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:44:24,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:44:24,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:44:24,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:44:24,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:44:24,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:44:24,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:44:24,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:44:24,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:44:24,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:44:24,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:44:24,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:44:24,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:44:24,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:44:24,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:44:24,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:44:24,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:44:24,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:44:24,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:44:24,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:44:24,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:44:24,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:44:24,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:44:24,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:44:24,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:44:24,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:44:24,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:44:24,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:44:24,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:44:24,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:44:24,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:44:24,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:44:24,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:44:24,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:44:24,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:44:24,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:44:24,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:44:24,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:44:24,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:44:24,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:44:24,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:44:24,536 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:44:24,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:44:24,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:44:24,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:44:24,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:44:24,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:44:24,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:44:24,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:44:24,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:44:24,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:44:24,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:44:24,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:44:24,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:44:24,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:44:24,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:44:24,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:44:24,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:44:24,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:44:24,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:44:24,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:44:24,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:44:24,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:44:24,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:44:24,543 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:44:24,543 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:44:24,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:44:24,544 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:44:24,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:44:24,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:44:24,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:44:24,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:44:24,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:44:24,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-10-22 00:44:24,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2390a9e01/8e8ebdae609342a0b94a6a617b222f33/FLAG573c78b48 [2020-10-22 00:44:25,521 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:44:25,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-10-22 00:44:25,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2390a9e01/8e8ebdae609342a0b94a6a617b222f33/FLAG573c78b48 [2020-10-22 00:44:25,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2390a9e01/8e8ebdae609342a0b94a6a617b222f33 [2020-10-22 00:44:25,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:44:25,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:44:25,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:44:25,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:44:25,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:44:25,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:44:25" (1/1) ... [2020-10-22 00:44:25,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344dab00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:25, skipping insertion in model container [2020-10-22 00:44:25,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:44:25" (1/1) ... [2020-10-22 00:44:25,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:44:25,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:44:26,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:44:26,420 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:44:26,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:44:26,552 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:44:26,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26 WrapperNode [2020-10-22 00:44:26,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:44:26,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:44:26,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:44:26,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:44:26,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:44:26,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:44:26,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:44:26,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:44:26,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (1/1) ... [2020-10-22 00:44:26,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:44:26,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:44:26,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:44:26,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:44:26,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (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 [2020-10-22 00:44:26,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:44:26,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:44:26,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:44:26,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:44:26,718 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:44:26,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:44:26,718 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:44:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:44:26,719 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:44:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:44:26,719 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 00:44:26,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 00:44:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:44:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:44:26,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:44:26,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:44:26,722 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:44:27,199 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:44:27,200 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:44:27,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:44:27 BoogieIcfgContainer [2020-10-22 00:44:27,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:44:27,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:44:27,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:44:27,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:44:27,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:44:25" (1/3) ... [2020-10-22 00:44:27,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10edb970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:44:27, skipping insertion in model container [2020-10-22 00:44:27,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:44:26" (2/3) ... [2020-10-22 00:44:27,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10edb970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:44:27, skipping insertion in model container [2020-10-22 00:44:27,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:44:27" (3/3) ... [2020-10-22 00:44:27,216 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2020-10-22 00:44:27,228 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:44:27,228 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:44:27,237 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:44:27,237 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:44:27,268 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,269 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,269 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,271 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,272 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,272 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,273 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,274 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,275 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,275 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,275 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,276 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,280 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,294 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,294 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,294 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,294 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:44:27,299 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:44:27,314 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 00:44:27,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:44:27,338 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:44:27,338 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:44:27,338 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:44:27,338 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:44:27,339 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:44:27,339 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:44:27,339 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:44:27,355 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:44:27,356 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-22 00:44:27,359 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 95 transitions, 210 flow [2020-10-22 00:44:27,361 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 105 places, 95 transitions, 210 flow [2020-10-22 00:44:27,419 INFO L129 PetriNetUnfolder]: 3/91 cut-off events. [2020-10-22 00:44:27,419 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:44:27,429 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 3/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-22 00:44:27,433 INFO L116 LiptonReduction]: Number of co-enabled transitions 2256 [2020-10-22 00:44:29,268 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-10-22 00:44:29,394 INFO L131 LiptonReduction]: Checked pairs total: 4418 [2020-10-22 00:44:29,394 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-22 00:44:29,402 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-22 00:44:29,499 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-22 00:44:29,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-22 00:44:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:44:29,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:29,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:29,533 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:29,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:29,540 INFO L82 PathProgramCache]: Analyzing trace with hash 481695671, now seen corresponding path program 1 times [2020-10-22 00:44:29,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:29,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619904269] [2020-10-22 00:44:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:29,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619904269] [2020-10-22 00:44:29,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:29,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:44:29,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [32341136] [2020-10-22 00:44:29,774 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:29,777 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:29,794 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 00:44:29,795 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:29,800 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:29,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:44:29,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:29,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:44:29,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:44:29,815 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-22 00:44:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:29,869 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-22 00:44:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:44:29,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-22 00:44:29,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:29,910 INFO L225 Difference]: With dead ends: 1450 [2020-10-22 00:44:29,910 INFO L226 Difference]: Without dead ends: 1194 [2020-10-22 00:44:29,912 INFO L677 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 [2020-10-22 00:44:29,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-22 00:44:30,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-22 00:44:30,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-22 00:44:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-22 00:44:30,096 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-22 00:44:30,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:30,105 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-22 00:44:30,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:44:30,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-22 00:44:30,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:44:30,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:30,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:30,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:44:30,116 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:30,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash 2047662136, now seen corresponding path program 1 times [2020-10-22 00:44:30,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:30,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994883603] [2020-10-22 00:44:30,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:30,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994883603] [2020-10-22 00:44:30,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:30,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:44:30,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [80151581] [2020-10-22 00:44:30,329 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:30,330 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:30,332 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-22 00:44:30,332 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:30,333 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:30,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:44:30,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:30,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:44:30,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:44:30,336 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-22 00:44:30,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:30,387 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-22 00:44:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:44:30,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 00:44:30,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:30,399 INFO L225 Difference]: With dead ends: 1322 [2020-10-22 00:44:30,399 INFO L226 Difference]: Without dead ends: 1066 [2020-10-22 00:44:30,401 INFO L677 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 [2020-10-22 00:44:30,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-22 00:44:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-22 00:44:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-22 00:44:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-22 00:44:30,452 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-22 00:44:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:30,452 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-22 00:44:30,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:44:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-22 00:44:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:44:30,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:30,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:30,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:44:30,456 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:30,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:30,456 INFO L82 PathProgramCache]: Analyzing trace with hash -947011909, now seen corresponding path program 1 times [2020-10-22 00:44:30,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:30,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295913929] [2020-10-22 00:44:30,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:30,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295913929] [2020-10-22 00:44:30,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:30,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:44:30,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1573399742] [2020-10-22 00:44:30,535 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:30,537 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:30,538 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-10-22 00:44:30,539 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:30,556 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:30,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:44:30,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:30,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:44:30,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:44:30,558 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-22 00:44:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:30,599 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-22 00:44:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:44:30,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 00:44:30,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:30,609 INFO L225 Difference]: With dead ends: 1162 [2020-10-22 00:44:30,609 INFO L226 Difference]: Without dead ends: 970 [2020-10-22 00:44:30,609 INFO L677 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 [2020-10-22 00:44:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-22 00:44:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-22 00:44:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-22 00:44:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-22 00:44:30,654 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-22 00:44:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:30,654 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-22 00:44:30,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:44:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-22 00:44:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:44:30,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:30,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:30,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:44:30,657 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:30,657 INFO L82 PathProgramCache]: Analyzing trace with hash 639503440, now seen corresponding path program 1 times [2020-10-22 00:44:30,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:30,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800266909] [2020-10-22 00:44:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:30,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800266909] [2020-10-22 00:44:30,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:30,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:44:30,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1975893659] [2020-10-22 00:44:30,722 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:30,723 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:30,726 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-22 00:44:30,726 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:30,810 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:30,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:44:30,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:30,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:44:30,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:44:30,812 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-22 00:44:30,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:30,848 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-22 00:44:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:44:30,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 00:44:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:30,857 INFO L225 Difference]: With dead ends: 1042 [2020-10-22 00:44:30,857 INFO L226 Difference]: Without dead ends: 898 [2020-10-22 00:44:30,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:44:30,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-22 00:44:30,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-22 00:44:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-22 00:44:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-22 00:44:30,930 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-22 00:44:30,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:30,931 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-22 00:44:30,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:44:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-22 00:44:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:44:30,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:30,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:30,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:44:30,933 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:30,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:30,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1650268135, now seen corresponding path program 1 times [2020-10-22 00:44:30,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:30,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531591392] [2020-10-22 00:44:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:30,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531591392] [2020-10-22 00:44:30,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:30,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:44:30,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1609591457] [2020-10-22 00:44:30,998 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:31,000 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:31,006 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 64 transitions. [2020-10-22 00:44:31,006 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:31,303 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:31,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:44:31,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:31,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:44:31,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:44:31,304 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 5 states. [2020-10-22 00:44:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:31,361 INFO L93 Difference]: Finished difference Result 1138 states and 3835 transitions. [2020-10-22 00:44:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:44:31,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 00:44:31,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:31,366 INFO L225 Difference]: With dead ends: 1138 [2020-10-22 00:44:31,367 INFO L226 Difference]: Without dead ends: 550 [2020-10-22 00:44:31,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:44:31,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-10-22 00:44:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-10-22 00:44:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-10-22 00:44:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1734 transitions. [2020-10-22 00:44:31,387 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1734 transitions. Word has length 14 [2020-10-22 00:44:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:31,388 INFO L481 AbstractCegarLoop]: Abstraction has 550 states and 1734 transitions. [2020-10-22 00:44:31,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:44:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1734 transitions. [2020-10-22 00:44:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:44:31,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:31,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:31,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:44:31,391 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:31,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:31,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1322311964, now seen corresponding path program 1 times [2020-10-22 00:44:31,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:31,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104190883] [2020-10-22 00:44:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:31,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104190883] [2020-10-22 00:44:31,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:31,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:44:31,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2085814324] [2020-10-22 00:44:31,455 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:31,457 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:31,468 INFO L252 McrAutomatonBuilder]: Finished intersection with 68 states and 144 transitions. [2020-10-22 00:44:31,468 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:32,239 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:32,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:44:32,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:32,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:44:32,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:44:32,241 INFO L87 Difference]: Start difference. First operand 550 states and 1734 transitions. Second operand 5 states. [2020-10-22 00:44:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:32,307 INFO L93 Difference]: Finished difference Result 688 states and 2129 transitions. [2020-10-22 00:44:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:44:32,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-22 00:44:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:32,311 INFO L225 Difference]: With dead ends: 688 [2020-10-22 00:44:32,311 INFO L226 Difference]: Without dead ends: 304 [2020-10-22 00:44:32,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:44:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-10-22 00:44:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-10-22 00:44:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-10-22 00:44:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 882 transitions. [2020-10-22 00:44:32,349 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 882 transitions. Word has length 16 [2020-10-22 00:44:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:32,350 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 882 transitions. [2020-10-22 00:44:32,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:44:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 882 transitions. [2020-10-22 00:44:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 00:44:32,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:32,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:32,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:44:32,352 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:32,353 INFO L82 PathProgramCache]: Analyzing trace with hash -2040493692, now seen corresponding path program 1 times [2020-10-22 00:44:32,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:32,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042177638] [2020-10-22 00:44:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:32,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042177638] [2020-10-22 00:44:32,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:32,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:44:32,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [655354431] [2020-10-22 00:44:32,456 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:32,460 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:32,469 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 94 transitions. [2020-10-22 00:44:32,470 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:32,906 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:32,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:44:32,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:32,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:44:32,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:44:32,908 INFO L87 Difference]: Start difference. First operand 304 states and 882 transitions. Second operand 5 states. [2020-10-22 00:44:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:32,965 INFO L93 Difference]: Finished difference Result 388 states and 1110 transitions. [2020-10-22 00:44:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:44:32,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-22 00:44:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:32,969 INFO L225 Difference]: With dead ends: 388 [2020-10-22 00:44:32,970 INFO L226 Difference]: Without dead ends: 148 [2020-10-22 00:44:32,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:44:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-22 00:44:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-22 00:44:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-22 00:44:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-10-22 00:44:32,976 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 17 [2020-10-22 00:44:32,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:32,976 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-10-22 00:44:32,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:44:32,976 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-10-22 00:44:32,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:44:32,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:44:32,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:44:32,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:44:32,978 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:44:32,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:44:32,978 INFO L82 PathProgramCache]: Analyzing trace with hash -2040946232, now seen corresponding path program 1 times [2020-10-22 00:44:32,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:44:32,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039217364] [2020-10-22 00:44:32,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:44:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:44:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:44:33,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039217364] [2020-10-22 00:44:33,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:44:33,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:44:33,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [415218801] [2020-10-22 00:44:33,038 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:44:33,040 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:44:33,045 INFO L252 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-10-22 00:44:33,045 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:44:33,135 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:44:33,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 00:44:33,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:44:33,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 00:44:33,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-22 00:44:33,136 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 6 states. [2020-10-22 00:44:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:44:33,258 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-10-22 00:44:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 00:44:33,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-22 00:44:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:44:33,259 INFO L225 Difference]: With dead ends: 124 [2020-10-22 00:44:33,259 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:44:33,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-22 00:44:33,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:44:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:44:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:44:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:44:33,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:44:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:44:33,261 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:44:33,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 00:44:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:44:33,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:44:33,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 00:44:33,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:44:33 BasicIcfg [2020-10-22 00:44:33,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:44:33,269 INFO L168 Benchmark]: Toolchain (without parser) took 7462.25 ms. Allocated memory was 138.4 MB in the beginning and 297.8 MB in the end (delta: 159.4 MB). Free memory was 99.7 MB in the beginning and 138.9 MB in the end (delta: -39.2 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,270 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.43 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.6 MB in the beginning and 155.6 MB in the end (delta: -57.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.88 ms. Allocated memory is still 202.4 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,272 INFO L168 Benchmark]: Boogie Preprocessor took 28.86 ms. Allocated memory is still 202.4 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,273 INFO L168 Benchmark]: RCFGBuilder took 569.19 ms. Allocated memory is still 202.4 MB. Free memory was 151.4 MB in the beginning and 125.0 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,274 INFO L168 Benchmark]: TraceAbstraction took 6058.96 ms. Allocated memory was 202.4 MB in the beginning and 297.8 MB in the end (delta: 95.4 MB). Free memory was 124.3 MB in the beginning and 138.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:44:33,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.43 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 98.6 MB in the beginning and 155.6 MB in the end (delta: -57.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.88 ms. Allocated memory is still 202.4 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.86 ms. Allocated memory is still 202.4 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 569.19 ms. Allocated memory is still 202.4 MB. Free memory was 151.4 MB in the beginning and 125.0 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6058.96 ms. Allocated memory was 202.4 MB in the beginning and 297.8 MB in the end (delta: 95.4 MB). Free memory was 124.3 MB in the beginning and 138.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1227 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 105 PlacesBefore, 41 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 2256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 4418 MoverChecksTotal - PositiveResult [Line: 17]: 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, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 226 SDtfs, 249 SDslu, 319 SDs, 0 SdLazy, 80 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 5237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...