/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/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:59:18,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:59:18,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:59:18,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:59:18,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:59:18,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:59:18,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:59:18,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:59:18,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:59:18,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:59:18,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:59:18,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:59:18,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:59:18,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:59:18,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:59:18,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:59:18,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:59:18,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:59:18,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:59:18,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:59:18,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:59:18,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:59:18,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:59:18,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:59:18,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:59:18,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:59:18,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:59:18,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:59:18,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:59:18,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:59:18,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:59:18,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:59:18,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:59:18,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:59:18,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:59:18,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:59:18,572 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 [2020-09-18 00:59:18,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:59:18,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:59:18,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:59:18,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:59:18,604 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:59:18,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:59:18,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:59:18,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:59:18,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:59:18,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:59:18,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:59:18,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:59:18,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:59:18,607 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:59:18,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:59:18,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:59:18,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:59:18,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:59:18,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:59:18,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:59:18,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:59:18,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:59:18,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:59:18,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:59:18,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:59:18,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:59:18,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:59:18,613 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:59:18,613 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:59:18,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:59:18,617 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:59:19,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:59:19,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:59:19,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:59:19,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:59:19,137 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:59:19,138 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-09-18 00:59:19,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64dca360f/88dc404ca1584ac5869237dfca70d658/FLAG232047ce4 [2020-09-18 00:59:19,859 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:59:19,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-09-18 00:59:19,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64dca360f/88dc404ca1584ac5869237dfca70d658/FLAG232047ce4 [2020-09-18 00:59:20,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64dca360f/88dc404ca1584ac5869237dfca70d658 [2020-09-18 00:59:20,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:59:20,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:59:20,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:59:20,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:59:20,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:59:20,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a84381b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20, skipping insertion in model container [2020-09-18 00:59:20,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:59:20,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:59:20,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:59:20,699 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:59:20,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:59:20,848 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:59:20,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20 WrapperNode [2020-09-18 00:59:20,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:59:20,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:59:20,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:59:20,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:59:20,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:59:20,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:59:20,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:59:20,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:59:20,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (1/1) ... [2020-09-18 00:59:20,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:59:20,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:59:20,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:59:20,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:59:20,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (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 [2020-09-18 00:59:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:59:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:59:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:59:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:59:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:59:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:59:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:59:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:59:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 00:59:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 00:59:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 00:59:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 00:59:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:59:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:59:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:59:21,022 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 00:59:21,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:59:21,411 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:59:21,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:59:21 BoogieIcfgContainer [2020-09-18 00:59:21,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:59:21,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:59:21,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:59:21,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:59:21,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:59:20" (1/3) ... [2020-09-18 00:59:21,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f036b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:59:21, skipping insertion in model container [2020-09-18 00:59:21,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:20" (2/3) ... [2020-09-18 00:59:21,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f036b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:59:21, skipping insertion in model container [2020-09-18 00:59:21,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:59:21" (3/3) ... [2020-09-18 00:59:21,427 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-09-18 00:59:21,438 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:59:21,439 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:59:21,449 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:59:21,450 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:59:21,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,489 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,489 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,489 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,489 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,494 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,495 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,495 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,505 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,506 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,508 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,509 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,512 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,513 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,513 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:21,537 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 00:59:21,566 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:59:21,566 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:59:21,567 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:59:21,567 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:59:21,567 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:59:21,567 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:59:21,567 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:59:21,568 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:59:21,587 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-09-18 00:59:21,590 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-18 00:59:21,649 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-18 00:59:21,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:59:21,656 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. [2020-09-18 00:59:21,660 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-18 00:59:21,685 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-18 00:59:21,685 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:59:21,686 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. [2020-09-18 00:59:21,690 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-18 00:59:21,692 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:59:23,208 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-18 00:59:23,309 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-09-18 00:59:23,310 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-09-18 00:59:23,314 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-18 00:59:23,380 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-18 00:59:23,383 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-18 00:59:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 00:59:23,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:23,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:23,397 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-09-18 00:59:23,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:23,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663745732] [2020-09-18 00:59:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:23,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663745732] [2020-09-18 00:59:23,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:23,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:23,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1555584158] [2020-09-18 00:59:23,660 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:23,668 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:23,687 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 00:59:23,687 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:23,689 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:23,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 00:59:23,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:23,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 00:59:23,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 00:59:23,712 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-18 00:59:23,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:23,753 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-18 00:59:23,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 00:59:23,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-18 00:59:23,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:23,789 INFO L225 Difference]: With dead ends: 850 [2020-09-18 00:59:23,790 INFO L226 Difference]: Without dead ends: 706 [2020-09-18 00:59:23,791 INFO L675 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 [2020-09-18 00:59:23,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-18 00:59:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-18 00:59:23,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-18 00:59:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-18 00:59:23,933 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-18 00:59:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:23,934 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-18 00:59:23,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 00:59:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-18 00:59:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:59:23,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:23,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:23,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:59:23,941 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:23,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:23,945 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-09-18 00:59:23,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:23,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117360862] [2020-09-18 00:59:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:24,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117360862] [2020-09-18 00:59:24,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:24,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:24,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [135718226] [2020-09-18 00:59:24,135 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:24,136 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:24,138 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-18 00:59:24,138 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:24,139 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:24,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:24,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:24,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:24,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:24,142 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-18 00:59:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:24,202 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-09-18 00:59:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:24,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 00:59:24,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:24,209 INFO L225 Difference]: With dead ends: 802 [2020-09-18 00:59:24,210 INFO L226 Difference]: Without dead ends: 658 [2020-09-18 00:59:24,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:24,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-09-18 00:59:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-09-18 00:59:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-09-18 00:59:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-09-18 00:59:24,247 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-09-18 00:59:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:24,248 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-09-18 00:59:24,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-09-18 00:59:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:59:24,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:24,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:24,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:59:24,252 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:24,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:24,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1502334909, now seen corresponding path program 1 times [2020-09-18 00:59:24,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:24,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287386025] [2020-09-18 00:59:24,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:24,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287386025] [2020-09-18 00:59:24,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:24,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:24,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1541734737] [2020-09-18 00:59:24,346 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:24,347 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:24,349 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-09-18 00:59:24,349 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:24,364 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:24,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:24,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:24,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:24,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:24,365 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-09-18 00:59:24,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:24,431 INFO L93 Difference]: Finished difference Result 738 states and 2404 transitions. [2020-09-18 00:59:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:24,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 00:59:24,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:24,438 INFO L225 Difference]: With dead ends: 738 [2020-09-18 00:59:24,438 INFO L226 Difference]: Without dead ends: 618 [2020-09-18 00:59:24,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-18 00:59:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-09-18 00:59:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-18 00:59:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2058 transitions. [2020-09-18 00:59:24,464 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 2058 transitions. Word has length 12 [2020-09-18 00:59:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:24,464 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 2058 transitions. [2020-09-18 00:59:24,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 2058 transitions. [2020-09-18 00:59:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:59:24,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:24,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:24,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:59:24,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:24,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:24,469 INFO L82 PathProgramCache]: Analyzing trace with hash 672248787, now seen corresponding path program 1 times [2020-09-18 00:59:24,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:24,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94443221] [2020-09-18 00:59:24,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:24,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:24,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94443221] [2020-09-18 00:59:24,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:24,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:24,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1973247544] [2020-09-18 00:59:24,618 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:24,619 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:24,622 INFO L274 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-09-18 00:59:24,622 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:24,674 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:24,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:24,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:24,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:24,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:24,675 INFO L87 Difference]: Start difference. First operand 618 states and 2058 transitions. Second operand 4 states. [2020-09-18 00:59:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:24,726 INFO L93 Difference]: Finished difference Result 658 states and 2130 transitions. [2020-09-18 00:59:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:24,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 00:59:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:24,731 INFO L225 Difference]: With dead ends: 658 [2020-09-18 00:59:24,731 INFO L226 Difference]: Without dead ends: 578 [2020-09-18 00:59:24,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-18 00:59:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2020-09-18 00:59:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-18 00:59:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions. [2020-09-18 00:59:24,753 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13 [2020-09-18 00:59:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:24,754 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions. [2020-09-18 00:59:24,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions. [2020-09-18 00:59:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 00:59:24,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:24,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:24,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:59:24,756 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:24,757 INFO L82 PathProgramCache]: Analyzing trace with hash 796896076, now seen corresponding path program 1 times [2020-09-18 00:59:24,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:24,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035931030] [2020-09-18 00:59:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:24,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035931030] [2020-09-18 00:59:24,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:24,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:24,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1694379701] [2020-09-18 00:59:24,824 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:24,826 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:24,829 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 43 transitions. [2020-09-18 00:59:24,829 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:24,861 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:24,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:24,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:24,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:24,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:24,862 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 4 states. [2020-09-18 00:59:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:24,908 INFO L93 Difference]: Finished difference Result 814 states and 2558 transitions. [2020-09-18 00:59:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:24,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-18 00:59:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:24,914 INFO L225 Difference]: With dead ends: 814 [2020-09-18 00:59:24,914 INFO L226 Difference]: Without dead ends: 618 [2020-09-18 00:59:24,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-18 00:59:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 538. [2020-09-18 00:59:24,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-09-18 00:59:24,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1706 transitions. [2020-09-18 00:59:24,940 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1706 transitions. Word has length 14 [2020-09-18 00:59:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:24,941 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 1706 transitions. [2020-09-18 00:59:24,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:24,941 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1706 transitions. [2020-09-18 00:59:24,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 00:59:24,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:24,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:24,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 00:59:24,943 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:24,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:24,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1106275611, now seen corresponding path program 1 times [2020-09-18 00:59:24,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:24,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317272176] [2020-09-18 00:59:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:25,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317272176] [2020-09-18 00:59:25,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:25,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:25,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [585354247] [2020-09-18 00:59:25,035 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:25,038 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:25,042 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 38 transitions. [2020-09-18 00:59:25,043 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:25,128 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:25,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:25,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:25,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:25,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:25,129 INFO L87 Difference]: Start difference. First operand 538 states and 1706 transitions. Second operand 4 states. [2020-09-18 00:59:25,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:25,163 INFO L93 Difference]: Finished difference Result 562 states and 1746 transitions. [2020-09-18 00:59:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:25,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-18 00:59:25,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:25,168 INFO L225 Difference]: With dead ends: 562 [2020-09-18 00:59:25,168 INFO L226 Difference]: Without dead ends: 514 [2020-09-18 00:59:25,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:25,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-09-18 00:59:25,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-09-18 00:59:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-09-18 00:59:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 1618 transitions. [2020-09-18 00:59:25,188 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 1618 transitions. Word has length 14 [2020-09-18 00:59:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:25,188 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 1618 transitions. [2020-09-18 00:59:25,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:25,189 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 1618 transitions. [2020-09-18 00:59:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:25,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:25,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:25,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 00:59:25,191 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:25,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1523462552, now seen corresponding path program 1 times [2020-09-18 00:59:25,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:25,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065092544] [2020-09-18 00:59:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:25,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065092544] [2020-09-18 00:59:25,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:25,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 00:59:25,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1806592641] [2020-09-18 00:59:25,302 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:25,304 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:25,308 INFO L274 McrAutomatonBuilder]: Finished intersection with 38 states and 61 transitions. [2020-09-18 00:59:25,308 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:25,357 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:25,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:59:25,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:25,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:59:25,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:25,358 INFO L87 Difference]: Start difference. First operand 514 states and 1618 transitions. Second operand 5 states. [2020-09-18 00:59:25,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:25,427 INFO L93 Difference]: Finished difference Result 1034 states and 3048 transitions. [2020-09-18 00:59:25,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-18 00:59:25,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 00:59:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:25,432 INFO L225 Difference]: With dead ends: 1034 [2020-09-18 00:59:25,432 INFO L226 Difference]: Without dead ends: 538 [2020-09-18 00:59:25,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-18 00:59:25,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-09-18 00:59:25,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 490. [2020-09-18 00:59:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-09-18 00:59:25,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 1446 transitions. [2020-09-18 00:59:25,451 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 1446 transitions. Word has length 15 [2020-09-18 00:59:25,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:25,451 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 1446 transitions. [2020-09-18 00:59:25,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:59:25,451 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 1446 transitions. [2020-09-18 00:59:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:25,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:25,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:25,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 00:59:25,453 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:25,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:25,454 INFO L82 PathProgramCache]: Analyzing trace with hash 659646890, now seen corresponding path program 1 times [2020-09-18 00:59:25,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:25,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533656111] [2020-09-18 00:59:25,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:25,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533656111] [2020-09-18 00:59:25,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:25,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:25,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1934719768] [2020-09-18 00:59:25,531 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:25,534 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:25,539 INFO L274 McrAutomatonBuilder]: Finished intersection with 42 states and 75 transitions. [2020-09-18 00:59:25,539 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:25,741 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:25,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:59:25,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:25,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:59:25,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:25,743 INFO L87 Difference]: Start difference. First operand 490 states and 1446 transitions. Second operand 5 states. [2020-09-18 00:59:25,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:25,788 INFO L93 Difference]: Finished difference Result 718 states and 2070 transitions. [2020-09-18 00:59:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:25,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 00:59:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:25,792 INFO L225 Difference]: With dead ends: 718 [2020-09-18 00:59:25,792 INFO L226 Difference]: Without dead ends: 394 [2020-09-18 00:59:25,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-18 00:59:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-18 00:59:25,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-18 00:59:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-18 00:59:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1106 transitions. [2020-09-18 00:59:25,811 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1106 transitions. Word has length 15 [2020-09-18 00:59:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:25,811 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1106 transitions. [2020-09-18 00:59:25,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:59:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1106 transitions. [2020-09-18 00:59:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:25,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:25,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:25,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-18 00:59:25,814 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:25,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:25,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1081767860, now seen corresponding path program 2 times [2020-09-18 00:59:25,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:25,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327946917] [2020-09-18 00:59:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:25,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327946917] [2020-09-18 00:59:25,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:25,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:25,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [992780072] [2020-09-18 00:59:25,911 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:25,914 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:25,922 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 85 transitions. [2020-09-18 00:59:25,922 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:26,053 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:26,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:59:26,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:26,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:59:26,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:26,055 INFO L87 Difference]: Start difference. First operand 394 states and 1106 transitions. Second operand 5 states. [2020-09-18 00:59:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:26,091 INFO L93 Difference]: Finished difference Result 522 states and 1422 transitions. [2020-09-18 00:59:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:26,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 00:59:26,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:26,094 INFO L225 Difference]: With dead ends: 522 [2020-09-18 00:59:26,094 INFO L226 Difference]: Without dead ends: 246 [2020-09-18 00:59:26,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-18 00:59:26,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-18 00:59:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2020-09-18 00:59:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-09-18 00:59:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 663 transitions. [2020-09-18 00:59:26,104 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 663 transitions. Word has length 15 [2020-09-18 00:59:26,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:26,104 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 663 transitions. [2020-09-18 00:59:26,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:59:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 663 transitions. [2020-09-18 00:59:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:26,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:26,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:26,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-18 00:59:26,106 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:26,106 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 3 times [2020-09-18 00:59:26,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:26,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873772316] [2020-09-18 00:59:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:26,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873772316] [2020-09-18 00:59:26,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:26,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:26,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [52107644] [2020-09-18 00:59:26,162 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:26,163 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:26,167 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-18 00:59:26,168 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:26,189 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:26,208 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:26,217 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:26,231 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:26,238 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:26,249 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:26,254 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:26,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:26,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:26,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:26,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:26,255 INFO L87 Difference]: Start difference. First operand 246 states and 663 transitions. Second operand 4 states. [2020-09-18 00:59:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:26,291 INFO L93 Difference]: Finished difference Result 174 states and 439 transitions. [2020-09-18 00:59:26,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:26,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-18 00:59:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:26,292 INFO L225 Difference]: With dead ends: 174 [2020-09-18 00:59:26,292 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:59:26,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:26,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:59:26,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:59:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:59:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:59:26,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-18 00:59:26,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:26,294 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:59:26,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:59:26,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:59:26,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-18 00:59:26,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:59:26 BasicIcfg [2020-09-18 00:59:26,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:59:26,302 INFO L168 Benchmark]: Toolchain (without parser) took 6176.87 ms. Allocated memory was 145.8 MB in the beginning and 295.7 MB in the end (delta: 149.9 MB). Free memory was 98.9 MB in the beginning and 158.8 MB in the end (delta: -59.9 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,303 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.96 ms. Allocated memory was 145.8 MB in the beginning and 200.3 MB in the end (delta: 54.5 MB). Free memory was 98.3 MB in the beginning and 156.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.21 ms. Allocated memory is still 200.3 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,305 INFO L168 Benchmark]: Boogie Preprocessor took 30.46 ms. Allocated memory is still 200.3 MB. Free memory was 154.4 MB in the beginning and 152.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,306 INFO L168 Benchmark]: RCFGBuilder took 478.96 ms. Allocated memory is still 200.3 MB. Free memory was 152.4 MB in the beginning and 128.8 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,307 INFO L168 Benchmark]: TraceAbstraction took 4881.15 ms. Allocated memory was 200.3 MB in the beginning and 295.7 MB in the end (delta: 95.4 MB). Free memory was 128.1 MB in the beginning and 158.8 MB in the end (delta: -30.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:26,311 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.96 ms. Allocated memory was 145.8 MB in the beginning and 200.3 MB in the end (delta: 54.5 MB). Free memory was 98.3 MB in the beginning and 156.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.21 ms. Allocated memory is still 200.3 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.46 ms. Allocated memory is still 200.3 MB. Free memory was 154.4 MB in the beginning and 152.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.96 ms. Allocated memory is still 200.3 MB. Free memory was 152.4 MB in the beginning and 128.8 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4881.15 ms. Allocated memory was 200.3 MB in the beginning and 295.7 MB in the end (delta: 95.4 MB). Free memory was 128.1 MB in the beginning and 158.8 MB in the end (delta: -30.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 927 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 293 SDtfs, 214 SDslu, 445 SDs, 0 SdLazy, 115 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s 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, 10 MinimizatonAttempts, 128 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 4828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...