/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:05:59,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:05:59,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:05:59,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:05:59,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:05:59,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:05:59,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:05:59,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:05:59,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:05:59,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:05:59,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:05:59,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:05:59,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:05:59,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:05:59,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:05:59,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:05:59,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:05:59,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:05:59,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:05:59,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:05:59,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:05:59,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:05:59,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:05:59,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:05:59,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:05:59,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:05:59,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:05:59,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:05:59,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:05:59,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:05:59,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:05:59,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:05:59,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:05:59,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:05:59,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:05:59,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:05:59,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 00:05:59,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:05:59,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:05:59,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:05:59,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:05:59,835 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:05:59,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:05:59,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:05:59,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:05:59,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:05:59,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:05:59,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:05:59,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:05:59,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:05:59,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:05:59,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:05:59,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:05:59,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:05:59,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:05:59,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:05:59,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:05:59,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:05:59,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:05:59,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:05:59,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:05:59,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:05:59,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:05:59,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:05:59,840 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:05:59,841 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:05:59,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:05:59,841 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:06:00,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:06:00,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:06:00,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:06:00,346 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:06:00,347 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:06:00,350 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2020-09-18 00:06:00,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f63963d1/d7a9cbe4507441d2ae0acc3ecd0a4b1f/FLAGba0212103 [2020-09-18 00:06:01,075 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:06:01,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2020-09-18 00:06:01,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f63963d1/d7a9cbe4507441d2ae0acc3ecd0a4b1f/FLAGba0212103 [2020-09-18 00:06:01,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f63963d1/d7a9cbe4507441d2ae0acc3ecd0a4b1f [2020-09-18 00:06:01,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:06:01,334 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:06:01,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:06:01,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:06:01,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:06:01,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:06:01" (1/1) ... [2020-09-18 00:06:01,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ad623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:01, skipping insertion in model container [2020-09-18 00:06:01,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:06:01" (1/1) ... [2020-09-18 00:06:01,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:06:01,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:06:01,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:06:01,990 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:06:02,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:06:02,131 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:06:02,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02 WrapperNode [2020-09-18 00:06:02,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:06:02,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:06:02,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:06:02,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:06:02,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:06:02,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:06:02,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:06:02,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:06:02,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... [2020-09-18 00:06:02,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:06:02,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:06:02,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:06:02,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:06:02,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:06:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:06:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:06:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:06:02,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:06:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:06:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:06:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:06:02,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:06:02,312 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 00:06:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 00:06:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:06:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:06:02,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:06:02,316 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 00:06:02,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:06:02,716 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:06:02,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:06:02 BoogieIcfgContainer [2020-09-18 00:06:02,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:06:02,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:06:02,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:06:02,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:06:02,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:06:01" (1/3) ... [2020-09-18 00:06:02,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cca280c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:06:02, skipping insertion in model container [2020-09-18 00:06:02,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:06:02" (2/3) ... [2020-09-18 00:06:02,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cca280c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:06:02, skipping insertion in model container [2020-09-18 00:06:02,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:06:02" (3/3) ... [2020-09-18 00:06:02,732 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2020-09-18 00:06:02,744 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:06:02,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:06:02,755 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:06:02,756 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:06:02,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,786 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,786 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,787 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,789 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,790 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,790 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,790 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,791 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,791 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,791 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,797 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:06:02,837 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 00:06:02,866 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:06:02,866 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:06:02,867 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:06:02,867 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:06:02,867 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:06:02,867 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:06:02,867 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:06:02,868 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:06:02,885 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-18 00:06:02,888 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-18 00:06:02,942 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-18 00:06:02,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:06:02,949 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:06:02,952 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-18 00:06:02,975 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-18 00:06:02,976 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:06:02,977 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:06:02,979 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-18 00:06:02,980 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:06:04,388 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-18 00:06:04,558 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-09-18 00:06:04,610 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-18 00:06:04,611 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-18 00:06:04,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-18 00:06:04,645 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-18 00:06:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-18 00:06:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 00:06:04,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:06:04,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:06:04,659 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:06:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:06:04,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-18 00:06:04,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:06:04,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046983686] [2020-09-18 00:06:04,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:06:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:06:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:06:04,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046983686] [2020-09-18 00:06:04,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:06:04,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:06:04,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1560604432] [2020-09-18 00:06:04,969 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:06:04,973 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:06:04,988 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 00:06:04,988 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:06:04,990 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:06:04,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:06:04,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:06:05,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:06:05,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:06:05,013 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-18 00:06:05,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:06:05,050 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-09-18 00:06:05,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:06:05,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-18 00:06:05,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:06:05,073 INFO L225 Difference]: With dead ends: 266 [2020-09-18 00:06:05,074 INFO L226 Difference]: Without dead ends: 202 [2020-09-18 00:06:05,077 INFO L675 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 [2020-09-18 00:06:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-18 00:06:05,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-18 00:06:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-18 00:06:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-18 00:06:05,152 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-09-18 00:06:05,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:06:05,153 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-18 00:06:05,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:06:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-18 00:06:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 00:06:05,156 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:06:05,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:06:05,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:06:05,157 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:06:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:06:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1613616234, now seen corresponding path program 1 times [2020-09-18 00:06:05,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:06:05,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268551066] [2020-09-18 00:06:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:06:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:06:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:06:05,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268551066] [2020-09-18 00:06:05,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:06:05,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:06:05,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1263066712] [2020-09-18 00:06:05,293 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:06:05,294 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:06:05,297 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-09-18 00:06:05,297 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:06:05,309 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:06:05,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:06:05,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:06:05,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:06:05,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:06:05,312 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-09-18 00:06:05,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:06:05,349 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-09-18 00:06:05,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:06:05,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-18 00:06:05,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:06:05,352 INFO L225 Difference]: With dead ends: 254 [2020-09-18 00:06:05,353 INFO L226 Difference]: Without dead ends: 190 [2020-09-18 00:06:05,353 INFO L675 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 [2020-09-18 00:06:05,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-18 00:06:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-09-18 00:06:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-18 00:06:05,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-09-18 00:06:05,372 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-09-18 00:06:05,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:06:05,373 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-09-18 00:06:05,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:06:05,373 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-09-18 00:06:05,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:06:05,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:06:05,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:06:05,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:06:05,375 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:06:05,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:06:05,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1111108671, now seen corresponding path program 1 times [2020-09-18 00:06:05,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:06:05,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309399376] [2020-09-18 00:06:05,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:06:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:06:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:06:05,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309399376] [2020-09-18 00:06:05,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:06:05,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:06:05,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [269645145] [2020-09-18 00:06:05,469 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:06:05,471 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:06:05,473 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-18 00:06:05,473 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:06:05,513 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:06:05,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:06:05,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:06:05,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:06:05,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:06:05,514 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-09-18 00:06:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:06:05,544 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-09-18 00:06:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:06:05,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 00:06:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:06:05,547 INFO L225 Difference]: With dead ends: 286 [2020-09-18 00:06:05,547 INFO L226 Difference]: Without dead ends: 178 [2020-09-18 00:06:05,548 INFO L675 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 [2020-09-18 00:06:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-18 00:06:05,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-09-18 00:06:05,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-18 00:06:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-09-18 00:06:05,562 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-09-18 00:06:05,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:06:05,562 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-09-18 00:06:05,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:06:05,562 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-09-18 00:06:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:06:05,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:06:05,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:06:05,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:06:05,564 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:06:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:06:05,565 INFO L82 PathProgramCache]: Analyzing trace with hash -143018253, now seen corresponding path program 1 times [2020-09-18 00:06:05,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:06:05,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487373437] [2020-09-18 00:06:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:06:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:06:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:06:05,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487373437] [2020-09-18 00:06:05,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:06:05,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:06:05,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [710027658] [2020-09-18 00:06:05,638 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:06:05,639 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:06:05,641 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 29 transitions. [2020-09-18 00:06:05,641 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:06:05,695 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:06:05,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:06:05,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:06:05,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:06:05,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:06:05,697 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 4 states. [2020-09-18 00:06:05,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:06:05,737 INFO L93 Difference]: Finished difference Result 214 states and 514 transitions. [2020-09-18 00:06:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:06:05,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 00:06:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:06:05,739 INFO L225 Difference]: With dead ends: 214 [2020-09-18 00:06:05,740 INFO L226 Difference]: Without dead ends: 150 [2020-09-18 00:06:05,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:06:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-09-18 00:06:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-09-18 00:06:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-18 00:06:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 362 transitions. [2020-09-18 00:06:05,768 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 362 transitions. Word has length 12 [2020-09-18 00:06:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:06:05,768 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 362 transitions. [2020-09-18 00:06:05,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:06:05,769 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 362 transitions. [2020-09-18 00:06:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:06:05,770 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:06:05,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:06:05,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:06:05,773 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:06:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:06:05,774 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 2 times [2020-09-18 00:06:05,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:06:05,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111297196] [2020-09-18 00:06:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:06:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:06:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:06:05,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111297196] [2020-09-18 00:06:05,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:06:05,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:06:05,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [676166417] [2020-09-18 00:06:05,892 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:06:05,894 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:06:05,910 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-18 00:06:05,910 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:06:05,924 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:06:05,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:06:05,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:06:05,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:06:05,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:06:05,926 INFO L87 Difference]: Start difference. First operand 150 states and 362 transitions. Second operand 3 states. [2020-09-18 00:06:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:06:05,946 INFO L93 Difference]: Finished difference Result 170 states and 402 transitions. [2020-09-18 00:06:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:06:05,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-18 00:06:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:06:05,947 INFO L225 Difference]: With dead ends: 170 [2020-09-18 00:06:05,947 INFO L226 Difference]: Without dead ends: 68 [2020-09-18 00:06:05,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:06:05,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-18 00:06:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-18 00:06:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-18 00:06:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-09-18 00:06:05,953 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-09-18 00:06:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:06:05,953 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-09-18 00:06:05,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:06:05,953 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-09-18 00:06:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:06:05,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:06:05,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:06:05,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 00:06:05,955 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:06:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:06:05,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-09-18 00:06:05,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:06:05,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555859912] [2020-09-18 00:06:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:06:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:06:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:06:06,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555859912] [2020-09-18 00:06:06,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:06:06,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:06:06,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1583505576] [2020-09-18 00:06:06,018 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:06:06,019 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:06:06,023 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-18 00:06:06,023 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:06:06,052 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:06:06,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:06:06,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:06:06,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:06:06,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:06:06,053 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-09-18 00:06:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:06:06,068 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-09-18 00:06:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:06:06,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 00:06:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:06:06,069 INFO L225 Difference]: With dead ends: 56 [2020-09-18 00:06:06,069 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:06:06,069 INFO L675 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 [2020-09-18 00:06:06,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:06:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:06:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:06:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:06:06,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-09-18 00:06:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:06:06,071 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:06:06,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:06:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:06:06,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:06:06,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 00:06:06,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:06:06 BasicIcfg [2020-09-18 00:06:06,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:06:06,078 INFO L168 Benchmark]: Toolchain (without parser) took 4749.10 ms. Allocated memory was 147.3 MB in the beginning and 247.5 MB in the end (delta: 100.1 MB). Free memory was 102.4 MB in the beginning and 191.3 MB in the end (delta: -88.9 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-09-18 00:06:06,079 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-18 00:06:06,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.13 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.0 MB in the beginning and 161.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-18 00:06:06,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.83 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:06:06,082 INFO L168 Benchmark]: Boogie Preprocessor took 32.35 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-18 00:06:06,083 INFO L168 Benchmark]: RCFGBuilder took 493.81 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 135.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-09-18 00:06:06,083 INFO L168 Benchmark]: TraceAbstraction took 3353.29 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 134.8 MB in the beginning and 191.3 MB in the end (delta: -56.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-18 00:06:06,088 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.13 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.0 MB in the beginning and 161.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.83 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.35 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.81 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 135.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3353.29 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 134.8 MB in the beginning and 191.3 MB in the end (delta: -56.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 653 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 117 SDtfs, 82 SDslu, 101 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1654 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...