/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:39:23,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:39:23,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:39:23,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:39:23,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:39:23,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:39:23,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:39:23,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:39:23,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:39:23,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:39:23,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:39:23,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:39:23,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:39:23,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:39:23,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:39:23,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:39:23,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:39:23,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:39:23,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:39:23,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:39:23,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:39:23,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:39:23,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:39:23,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:39:23,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:39:23,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:39:23,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:39:23,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:39:23,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:39:23,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:39:23,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:39:23,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:39:23,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:39:23,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:39:23,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:39:23,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:39:23,516 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 [2020-11-09 15:39:23,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:39:23,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:39:23,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:39:23,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:39:23,576 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:39:23,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:39:23,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:39:23,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:39:23,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:39:23,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:39:23,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:39:23,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:39:23,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:39:23,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:39:23,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:39:23,579 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:39:23,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:39:23,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:39:23,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:39:23,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:39:23,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:39:23,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:39:23,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:39:23,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:39:23,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:39:23,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:39:23,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:39:23,581 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:39:23,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:39:23,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:39:23,582 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:39:24,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:39:24,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:39:24,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:39:24,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:39:24,047 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:39:24,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-11-09 15:39:24,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85d6d952/48f3c9ebb30f4931a606ea26933a00fb/FLAGdfb44114d [2020-11-09 15:39:24,717 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:39:24,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-11-09 15:39:24,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85d6d952/48f3c9ebb30f4931a606ea26933a00fb/FLAGdfb44114d [2020-11-09 15:39:25,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c85d6d952/48f3c9ebb30f4931a606ea26933a00fb [2020-11-09 15:39:25,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:39:25,028 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:39:25,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:39:25,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:39:25,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:39:25,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a618e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25, skipping insertion in model container [2020-11-09 15:39:25,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:39:25,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:39:25,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:39:25,566 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:39:25,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:39:25,772 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:39:25,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25 WrapperNode [2020-11-09 15:39:25,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:39:25,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:39:25,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:39:25,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:39:25,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:39:25,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:39:25,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:39:25,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:39:25,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (1/1) ... [2020-11-09 15:39:25,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:39:25,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:39:25,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:39:25,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:39:25,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (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 [2020-11-09 15:39:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:39:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:39:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:39:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:39:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:39:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:39:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:39:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:39:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:39:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:39:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 15:39:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 15:39:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:39:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:39:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:39:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:39:25,942 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:39:26,654 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:39:26,655 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:39:26,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:39:26 BoogieIcfgContainer [2020-11-09 15:39:26,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:39:26,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:39:26,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:39:26,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:39:26,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:39:25" (1/3) ... [2020-11-09 15:39:26,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12074fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:39:26, skipping insertion in model container [2020-11-09 15:39:26,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:25" (2/3) ... [2020-11-09 15:39:26,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12074fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:39:26, skipping insertion in model container [2020-11-09 15:39:26,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:39:26" (3/3) ... [2020-11-09 15:39:26,669 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2020-11-09 15:39:26,687 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:39:26,687 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:39:26,691 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:39:26,692 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:39:26,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,737 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,737 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,738 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,738 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,746 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,746 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,746 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,746 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,747 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,747 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,747 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,747 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,748 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,749 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,751 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,759 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,759 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,760 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,760 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,763 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,764 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:26,773 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:39:26,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:39:26,810 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:39:26,810 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:39:26,810 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:39:26,811 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:39:26,811 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:39:26,811 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:39:26,811 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:39:26,811 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:39:26,823 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:39:26,824 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 15:39:26,827 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 15:39:26,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-11-09 15:39:26,879 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-11-09 15:39:26,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:39:26,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 15:39:26,888 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 15:39:30,113 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 15:39:30,273 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-09 15:39:31,142 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 15:39:31,447 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 15:39:32,180 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 15:39:32,368 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-11-09 15:39:32,586 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 15:39:32,760 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-11-09 15:39:32,930 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-11-09 15:39:33,378 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:39:33,556 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:33,954 WARN L194 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:39:34,140 WARN L194 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:34,484 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 15:39:34,760 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 15:39:34,863 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-11-09 15:39:34,863 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-11-09 15:39:34,869 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 15:39:34,921 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 15:39:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 15:39:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:39:34,933 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:34,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:34,934 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:34,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:34,940 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-11-09 15:39:34,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:34,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673349446] [2020-11-09 15:39:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:35,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673349446] [2020-11-09 15:39:35,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:35,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:39:35,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [457285329] [2020-11-09 15:39:35,190 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:35,194 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:35,209 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 15:39:35,209 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:35,213 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:35,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:39:35,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:35,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:39:35,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:35,232 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 15:39:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:35,289 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 15:39:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:39:35,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:39:35,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:35,314 INFO L225 Difference]: With dead ends: 670 [2020-11-09 15:39:35,314 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 15:39:35,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:35,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 15:39:35,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 15:39:35,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 15:39:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 15:39:35,448 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 15:39:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:35,450 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 15:39:35,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:39:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 15:39:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:39:35,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:35,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:35,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:39:35,456 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:35,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:35,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-11-09 15:39:35,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:35,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222328577] [2020-11-09 15:39:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:35,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222328577] [2020-11-09 15:39:35,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:35,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:39:35,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [47491516] [2020-11-09 15:39:35,609 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:35,611 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:35,615 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:39:35,615 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:35,718 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:35,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:39:35,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:35,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:39:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:35,721 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 3 states. [2020-11-09 15:39:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:35,734 INFO L93 Difference]: Finished difference Result 499 states and 1635 transitions. [2020-11-09 15:39:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:39:35,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 15:39:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:35,741 INFO L225 Difference]: With dead ends: 499 [2020-11-09 15:39:35,741 INFO L226 Difference]: Without dead ends: 499 [2020-11-09 15:39:35,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:35,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-11-09 15:39:35,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2020-11-09 15:39:35,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-11-09 15:39:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1635 transitions. [2020-11-09 15:39:35,767 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1635 transitions. Word has length 11 [2020-11-09 15:39:35,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:35,768 INFO L481 AbstractCegarLoop]: Abstraction has 499 states and 1635 transitions. [2020-11-09 15:39:35,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:39:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1635 transitions. [2020-11-09 15:39:35,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:39:35,770 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:35,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:35,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:39:35,771 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:35,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:35,772 INFO L82 PathProgramCache]: Analyzing trace with hash -784965297, now seen corresponding path program 1 times [2020-11-09 15:39:35,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:35,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128598277] [2020-11-09 15:39:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:35,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128598277] [2020-11-09 15:39:35,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:35,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:35,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [175216524] [2020-11-09 15:39:35,861 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:35,863 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:35,866 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 43 transitions. [2020-11-09 15:39:35,867 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:35,983 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:35,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:35,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:35,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:35,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:35,984 INFO L87 Difference]: Start difference. First operand 499 states and 1635 transitions. Second operand 4 states. [2020-11-09 15:39:36,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:36,018 INFO L93 Difference]: Finished difference Result 706 states and 2262 transitions. [2020-11-09 15:39:36,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:39:36,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 15:39:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:36,022 INFO L225 Difference]: With dead ends: 706 [2020-11-09 15:39:36,023 INFO L226 Difference]: Without dead ends: 394 [2020-11-09 15:39:36,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:36,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-09 15:39:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-09 15:39:36,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-09 15:39:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-11-09 15:39:36,038 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-11-09 15:39:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:36,039 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-11-09 15:39:36,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-11-09 15:39:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:39:36,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:36,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:36,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:39:36,041 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:36,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:36,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-11-09 15:39:36,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:36,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427435326] [2020-11-09 15:39:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:36,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:36,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427435326] [2020-11-09 15:39:36,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:36,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:36,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [434383203] [2020-11-09 15:39:36,091 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:36,093 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:36,096 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 15:39:36,097 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:36,139 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:36,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:36,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:36,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:36,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:36,141 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-11-09 15:39:36,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:36,168 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-11-09 15:39:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:39:36,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:39:36,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:36,171 INFO L225 Difference]: With dead ends: 538 [2020-11-09 15:39:36,172 INFO L226 Difference]: Without dead ends: 286 [2020-11-09 15:39:36,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:36,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-09 15:39:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-09 15:39:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-09 15:39:36,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-11-09 15:39:36,182 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-11-09 15:39:36,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:36,183 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-11-09 15:39:36,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-11-09 15:39:36,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:39:36,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:36,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:36,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:39:36,184 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:36,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:36,185 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-11-09 15:39:36,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:36,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369278361] [2020-11-09 15:39:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:36,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369278361] [2020-11-09 15:39:36,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:36,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:36,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [252796057] [2020-11-09 15:39:36,291 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:36,296 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:36,302 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 15:39:36,302 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:36,318 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,352 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,368 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,388 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,433 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,463 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,488 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,503 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,536 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7360#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 15:39:36,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:39:36,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:36,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:39:36,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:36,538 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 5 states. [2020-11-09 15:39:36,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:36,614 INFO L93 Difference]: Finished difference Result 301 states and 817 transitions. [2020-11-09 15:39:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:39:36,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:39:36,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:36,617 INFO L225 Difference]: With dead ends: 301 [2020-11-09 15:39:36,617 INFO L226 Difference]: Without dead ends: 208 [2020-11-09 15:39:36,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:39:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-09 15:39:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-09 15:39:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-09 15:39:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-11-09 15:39:36,624 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 14 [2020-11-09 15:39:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:36,624 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-11-09 15:39:36,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:39:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-11-09 15:39:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:39:36,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:36,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:36,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:39:36,626 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:36,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-11-09 15:39:36,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:36,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505071399] [2020-11-09 15:39:36,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:36,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:36,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505071399] [2020-11-09 15:39:36,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:36,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:39:36,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [3715032] [2020-11-09 15:39:36,720 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:36,722 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:36,731 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 76 transitions. [2020-11-09 15:39:36,731 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:36,757 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,821 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,841 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:36,929 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [8088#(not (= 4 ~__unbuffered_cnt~0)), 8089#(not (= ~__unbuffered_cnt~0 3)), 8090#(not (= ~__unbuffered_cnt~0 2)), 8091#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:39:36,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 15:39:36,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:36,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 15:39:36,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-09 15:39:36,931 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 10 states. [2020-11-09 15:39:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:37,054 INFO L93 Difference]: Finished difference Result 185 states and 463 transitions. [2020-11-09 15:39:37,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 15:39:37,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-11-09 15:39:37,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:37,056 INFO L225 Difference]: With dead ends: 185 [2020-11-09 15:39:37,056 INFO L226 Difference]: Without dead ends: 147 [2020-11-09 15:39:37,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-09 15:39:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-09 15:39:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-11-09 15:39:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-09 15:39:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 362 transitions. [2020-11-09 15:39:37,062 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 362 transitions. Word has length 16 [2020-11-09 15:39:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:37,063 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 362 transitions. [2020-11-09 15:39:37,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 15:39:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 362 transitions. [2020-11-09 15:39:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:39:37,064 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:37,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:37,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:39:37,064 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:37,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1961572935, now seen corresponding path program 1 times [2020-11-09 15:39:37,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:37,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12346843] [2020-11-09 15:39:37,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:37,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:37,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12346843] [2020-11-09 15:39:37,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:37,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:37,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1011367253] [2020-11-09 15:39:37,108 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:37,110 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:37,125 INFO L252 McrAutomatonBuilder]: Finished intersection with 65 states and 114 transitions. [2020-11-09 15:39:37,125 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:37,142 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:37,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:37,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:37,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:37,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:37,143 INFO L87 Difference]: Start difference. First operand 147 states and 362 transitions. Second operand 4 states. [2020-11-09 15:39:37,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:37,167 INFO L93 Difference]: Finished difference Result 230 states and 541 transitions. [2020-11-09 15:39:37,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:39:37,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:39:37,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:37,169 INFO L225 Difference]: With dead ends: 230 [2020-11-09 15:39:37,169 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 15:39:37,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 15:39:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 15:39:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 15:39:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 15:39:37,172 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 15:39:37,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:37,172 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 15:39:37,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 15:39:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:39:37,173 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:37,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:37,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:39:37,174 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:37,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:37,174 INFO L82 PathProgramCache]: Analyzing trace with hash 2013284665, now seen corresponding path program 2 times [2020-11-09 15:39:37,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:37,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736349170] [2020-11-09 15:39:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:37,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736349170] [2020-11-09 15:39:37,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:37,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:37,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [28594053] [2020-11-09 15:39:37,217 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:37,219 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:37,231 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 115 transitions. [2020-11-09 15:39:37,232 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:37,305 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:37,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:37,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:37,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:37,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:37,307 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 15:39:37,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:37,322 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 15:39:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:39:37,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:39:37,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:37,322 INFO L225 Difference]: With dead ends: 70 [2020-11-09 15:39:37,322 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:39:37,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:39:37,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:39:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:39:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:39:37,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 15:39:37,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:37,324 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:39:37,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:39:37,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:39:37,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:39:37,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:39:37 BasicIcfg [2020-11-09 15:39:37,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:39:37,330 INFO L168 Benchmark]: Toolchain (without parser) took 12308.94 ms. Allocated memory was 159.4 MB in the beginning and 230.7 MB in the end (delta: 71.3 MB). Free memory was 115.0 MB in the beginning and 104.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 83.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:37,330 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 159.4 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:39:37,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.58 ms. Allocated memory is still 159.4 MB. Free memory was 114.4 MB in the beginning and 121.8 MB in the end (delta: -7.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:37,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.86 ms. Allocated memory is still 159.4 MB. Free memory was 121.8 MB in the beginning and 119.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:37,332 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 159.4 MB. Free memory was 119.7 MB in the beginning and 118.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:37,333 INFO L168 Benchmark]: RCFGBuilder took 807.10 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 118.4 MB in the beginning and 170.5 MB in the end (delta: -52.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:37,334 INFO L168 Benchmark]: TraceAbstraction took 10667.84 ms. Allocated memory was 191.9 MB in the beginning and 230.7 MB in the end (delta: 38.8 MB). Free memory was 170.0 MB in the beginning and 104.4 MB in the end (delta: 65.5 MB). Peak memory consumption was 104.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:37,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 159.4 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 740.58 ms. Allocated memory is still 159.4 MB. Free memory was 114.4 MB in the beginning and 121.8 MB in the end (delta: -7.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.86 ms. Allocated memory is still 159.4 MB. Free memory was 121.8 MB in the beginning and 119.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 159.4 MB. Free memory was 119.7 MB in the beginning and 118.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 807.10 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 118.4 MB in the beginning and 170.5 MB in the end (delta: -52.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10667.84 ms. Allocated memory was 191.9 MB in the beginning and 230.7 MB in the end (delta: 38.8 MB). Free memory was 170.0 MB in the beginning and 104.4 MB in the end (delta: 65.5 MB). Peak memory consumption was 104.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.0s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 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, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 173 SDtfs, 157 SDslu, 291 SDs, 0 SdLazy, 142 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 120 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4354 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...