/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:34:18,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:34:18,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:34:18,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:34:18,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:34:18,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:34:18,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:34:18,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:34:18,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:34:18,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:34:18,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:34:18,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:34:18,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:34:18,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:34:18,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:34:18,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:34:18,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:34:18,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:34:18,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:34:18,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:34:18,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:34:18,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:34:18,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:34:18,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:34:18,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 21:34:18,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:34:18,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:34:18,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:34:18,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:34:18,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:34:18,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:34:18,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:34:18,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:34:18,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:34:18,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:34:18,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:34:18,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:34:18,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:34:18,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:34:18,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:34:18,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:34:18,704 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:34:18,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:34:18,704 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:34:18,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:34:18,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:34:18,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:34:18,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:34:18,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:34:18,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:34:18,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:34:18,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:34:18,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:34:18,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:34:18,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:34:18,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:34:18,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:34:18,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:34:18,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:34:18,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:34:18,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:34:18,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:34:18,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:34:18,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:34:18,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:34:18,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:34:18,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:34:18,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:34:19,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:34:19,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:34:19,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:34:19,013 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:34:19,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-21 21:34:19,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af077e0b7/c4e2b8d834b94bb98297b6b53e392efd/FLAGbb712eae0 [2020-10-21 21:34:19,653 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:34:19,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2020-10-21 21:34:19,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af077e0b7/c4e2b8d834b94bb98297b6b53e392efd/FLAGbb712eae0 [2020-10-21 21:34:19,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af077e0b7/c4e2b8d834b94bb98297b6b53e392efd [2020-10-21 21:34:19,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:34:19,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:34:19,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:34:19,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:34:19,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:34:19,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:34:19" (1/1) ... [2020-10-21 21:34:19,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f414aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:19, skipping insertion in model container [2020-10-21 21:34:19,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:34:19" (1/1) ... [2020-10-21 21:34:19,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:34:20,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:34:20,305 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 21:34:20,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:34:20,457 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:34:20,475 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-21 21:34:20,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:34:20,584 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:34:20,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20 WrapperNode [2020-10-21 21:34:20,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:34:20,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:34:20,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:34:20,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:34:20,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:34:20,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:34:20,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:34:20,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:34:20,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (1/1) ... [2020-10-21 21:34:20,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:34:20,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:34:20,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:34:20,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:34:20,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (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 [2020-10-21 21:34:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 21:34:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-21 21:34:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-21 21:34:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 21:34:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 21:34:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:34:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 21:34:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:34:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:34:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:34:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 21:34:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:34:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:34:20,771 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:34:21,162 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:34:21,162 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-21 21:34:21,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:34:21 BoogieIcfgContainer [2020-10-21 21:34:21,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:34:21,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:34:21,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:34:21,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:34:21,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:34:19" (1/3) ... [2020-10-21 21:34:21,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a773d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:34:21, skipping insertion in model container [2020-10-21 21:34:21,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:34:20" (2/3) ... [2020-10-21 21:34:21,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a773d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:34:21, skipping insertion in model container [2020-10-21 21:34:21,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:34:21" (3/3) ... [2020-10-21 21:34:21,175 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-10-21 21:34:21,189 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:34:21,189 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:34:21,197 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 21:34:21,198 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:34:21,234 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,234 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,234 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,237 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,237 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,237 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,240 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,240 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,241 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,241 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,269 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,269 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,270 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,270 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,270 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,270 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:34:21,292 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 21:34:21,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 21:34:21,332 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:34:21,333 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:34:21,333 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:34:21,333 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:34:21,333 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:34:21,333 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:34:21,333 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:34:21,333 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:34:21,353 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:34:21,355 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 109 transitions, 240 flow [2020-10-21 21:34:21,357 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 109 transitions, 240 flow [2020-10-21 21:34:21,359 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 109 transitions, 240 flow [2020-10-21 21:34:21,416 INFO L129 PetriNetUnfolder]: 23/109 cut-off events. [2020-10-21 21:34:21,417 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 21:34:21,427 INFO L80 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 109 events. 23/109 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2020-10-21 21:34:21,436 INFO L116 LiptonReduction]: Number of co-enabled transitions 3528 [2020-10-21 21:34:22,978 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-21 21:34:23,201 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-21 21:34:23,329 INFO L131 LiptonReduction]: Checked pairs total: 9743 [2020-10-21 21:34:23,329 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-10-21 21:34:23,335 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 54 transitions, 130 flow [2020-10-21 21:34:23,375 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 540 states. [2020-10-21 21:34:23,378 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states. [2020-10-21 21:34:23,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:34:23,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:23,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:23,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:23,395 INFO L82 PathProgramCache]: Analyzing trace with hash -370162947, now seen corresponding path program 1 times [2020-10-21 21:34:23,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:23,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179542884] [2020-10-21 21:34:23,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:23,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:23,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179542884] [2020-10-21 21:34:23,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:23,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:34:23,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539585317] [2020-10-21 21:34:23,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:34:23,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:23,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:34:23,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:23,636 INFO L87 Difference]: Start difference. First operand 540 states. Second operand 3 states. [2020-10-21 21:34:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:23,706 INFO L93 Difference]: Finished difference Result 588 states and 1620 transitions. [2020-10-21 21:34:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:34:23,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 21:34:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:23,729 INFO L225 Difference]: With dead ends: 588 [2020-10-21 21:34:23,730 INFO L226 Difference]: Without dead ends: 420 [2020-10-21 21:34:23,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-21 21:34:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 402. [2020-10-21 21:34:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-10-21 21:34:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1144 transitions. [2020-10-21 21:34:23,816 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1144 transitions. Word has length 10 [2020-10-21 21:34:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:23,817 INFO L481 AbstractCegarLoop]: Abstraction has 402 states and 1144 transitions. [2020-10-21 21:34:23,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:34:23,818 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1144 transitions. [2020-10-21 21:34:23,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 21:34:23,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:23,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:23,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:34:23,821 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:23,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:23,821 INFO L82 PathProgramCache]: Analyzing trace with hash 578120779, now seen corresponding path program 1 times [2020-10-21 21:34:23,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:23,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057966909] [2020-10-21 21:34:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:23,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057966909] [2020-10-21 21:34:23,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:23,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:34:23,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186732210] [2020-10-21 21:34:23,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:34:23,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:23,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:34:23,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:23,941 INFO L87 Difference]: Start difference. First operand 402 states and 1144 transitions. Second operand 3 states. [2020-10-21 21:34:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:23,968 INFO L93 Difference]: Finished difference Result 389 states and 1093 transitions. [2020-10-21 21:34:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:34:23,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-21 21:34:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:23,973 INFO L225 Difference]: With dead ends: 389 [2020-10-21 21:34:23,973 INFO L226 Difference]: Without dead ends: 284 [2020-10-21 21:34:23,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:23,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-21 21:34:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-10-21 21:34:23,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-21 21:34:23,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 801 transitions. [2020-10-21 21:34:23,995 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 801 transitions. Word has length 12 [2020-10-21 21:34:23,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:23,996 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 801 transitions. [2020-10-21 21:34:23,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:34:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 801 transitions. [2020-10-21 21:34:23,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 21:34:23,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:23,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:24,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:34:24,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:24,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:24,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1290529882, now seen corresponding path program 1 times [2020-10-21 21:34:24,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:24,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739452607] [2020-10-21 21:34:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:24,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739452607] [2020-10-21 21:34:24,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:24,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:34:24,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118006288] [2020-10-21 21:34:24,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:34:24,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:24,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:34:24,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:24,079 INFO L87 Difference]: Start difference. First operand 284 states and 801 transitions. Second operand 3 states. [2020-10-21 21:34:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:24,105 INFO L93 Difference]: Finished difference Result 284 states and 797 transitions. [2020-10-21 21:34:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:34:24,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-21 21:34:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:24,109 INFO L225 Difference]: With dead ends: 284 [2020-10-21 21:34:24,109 INFO L226 Difference]: Without dead ends: 284 [2020-10-21 21:34:24,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:34:24,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-21 21:34:24,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-10-21 21:34:24,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-21 21:34:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 797 transitions. [2020-10-21 21:34:24,144 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 797 transitions. Word has length 19 [2020-10-21 21:34:24,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:24,145 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 797 transitions. [2020-10-21 21:34:24,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:34:24,145 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 797 transitions. [2020-10-21 21:34:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 21:34:24,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:24,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:24,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:34:24,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:24,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:24,148 INFO L82 PathProgramCache]: Analyzing trace with hash 133935700, now seen corresponding path program 2 times [2020-10-21 21:34:24,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:24,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685369093] [2020-10-21 21:34:24,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:24,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685369093] [2020-10-21 21:34:24,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:24,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:34:24,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638536734] [2020-10-21 21:34:24,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:24,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:24,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:24,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:24,194 INFO L87 Difference]: Start difference. First operand 284 states and 797 transitions. Second operand 4 states. [2020-10-21 21:34:24,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:24,296 INFO L93 Difference]: Finished difference Result 378 states and 1066 transitions. [2020-10-21 21:34:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:24,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-21 21:34:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:24,299 INFO L225 Difference]: With dead ends: 378 [2020-10-21 21:34:24,299 INFO L226 Difference]: Without dead ends: 252 [2020-10-21 21:34:24,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:34:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-21 21:34:24,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 228. [2020-10-21 21:34:24,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-21 21:34:24,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 581 transitions. [2020-10-21 21:34:24,312 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 581 transitions. Word has length 19 [2020-10-21 21:34:24,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:24,312 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 581 transitions. [2020-10-21 21:34:24,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 581 transitions. [2020-10-21 21:34:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 21:34:24,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:24,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:24,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 21:34:24,315 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:24,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:24,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1578565438, now seen corresponding path program 1 times [2020-10-21 21:34:24,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:24,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599869066] [2020-10-21 21:34:24,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:24,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599869066] [2020-10-21 21:34:24,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:24,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:34:24,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829062544] [2020-10-21 21:34:24,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:24,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:24,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:24,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:24,374 INFO L87 Difference]: Start difference. First operand 228 states and 581 transitions. Second operand 4 states. [2020-10-21 21:34:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:24,462 INFO L93 Difference]: Finished difference Result 344 states and 853 transitions. [2020-10-21 21:34:24,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:24,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-21 21:34:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:24,465 INFO L225 Difference]: With dead ends: 344 [2020-10-21 21:34:24,466 INFO L226 Difference]: Without dead ends: 332 [2020-10-21 21:34:24,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:34:24,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-10-21 21:34:24,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 260. [2020-10-21 21:34:24,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-10-21 21:34:24,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 667 transitions. [2020-10-21 21:34:24,477 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 667 transitions. Word has length 19 [2020-10-21 21:34:24,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:24,477 INFO L481 AbstractCegarLoop]: Abstraction has 260 states and 667 transitions. [2020-10-21 21:34:24,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:24,478 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 667 transitions. [2020-10-21 21:34:24,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 21:34:24,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:34:24,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:34:24,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:34:24,479 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:34:24,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:34:24,480 INFO L82 PathProgramCache]: Analyzing trace with hash 791082734, now seen corresponding path program 2 times [2020-10-21 21:34:24,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:34:24,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952518936] [2020-10-21 21:34:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:34:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:34:24,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:34:24,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952518936] [2020-10-21 21:34:24,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:34:24,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:34:24,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984380862] [2020-10-21 21:34:24,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 21:34:24,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:34:24,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 21:34:24,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 21:34:24,520 INFO L87 Difference]: Start difference. First operand 260 states and 667 transitions. Second operand 4 states. [2020-10-21 21:34:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:34:24,596 INFO L93 Difference]: Finished difference Result 238 states and 610 transitions. [2020-10-21 21:34:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:34:24,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-21 21:34:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:34:24,597 INFO L225 Difference]: With dead ends: 238 [2020-10-21 21:34:24,597 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 21:34:24,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:34:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 21:34:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 21:34:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 21:34:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 21:34:24,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-21 21:34:24,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:34:24,599 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 21:34:24,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 21:34:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 21:34:24,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 21:34:24,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:34:24,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:34:24 BasicIcfg [2020-10-21 21:34:24,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:34:24,609 INFO L168 Benchmark]: Toolchain (without parser) took 4666.08 ms. Allocated memory was 138.9 MB in the beginning and 249.6 MB in the end (delta: 110.6 MB). Free memory was 100.6 MB in the beginning and 151.1 MB in the end (delta: -50.5 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,611 INFO L168 Benchmark]: CDTParser took 2.74 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.10 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.6 MB in the beginning and 156.8 MB in the end (delta: -57.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.16 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 154.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,620 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,621 INFO L168 Benchmark]: RCFGBuilder took 493.86 ms. Allocated memory is still 201.9 MB. Free memory was 152.7 MB in the beginning and 126.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,622 INFO L168 Benchmark]: TraceAbstraction took 3438.80 ms. Allocated memory was 201.9 MB in the beginning and 249.6 MB in the end (delta: 47.7 MB). Free memory was 125.4 MB in the beginning and 151.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-21 21:34:24,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.74 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.10 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.6 MB in the beginning and 156.8 MB in the end (delta: -57.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.16 ms. Allocated memory is still 201.9 MB. Free memory was 156.8 MB in the beginning and 154.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.86 ms. Allocated memory is still 201.9 MB. Free memory was 152.7 MB in the beginning and 126.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3438.80 ms. Allocated memory was 201.9 MB in the beginning and 249.6 MB in the end (delta: 47.7 MB). Free memory was 125.4 MB in the beginning and 151.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2277 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 50 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 338 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 92 PlacesBefore, 47 PlacesAfterwards, 109 TransitionsBefore, 54 TransitionsAfterwards, 3528 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 10 ChoiceCompositions, 82 TotalNumberOfCompositions, 9743 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 361 SDtfs, 222 SDslu, 254 SDs, 0 SdLazy, 159 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=540occurred 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, 6 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 2258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...