/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:52:52,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:52:52,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:52:52,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:52:52,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:52:52,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:52:52,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:52:52,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:52:52,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:52:52,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:52:52,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:52:52,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:52:52,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:52:52,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:52:52,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:52:52,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:52:52,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:52:52,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:52:52,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:52:52,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:52:52,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:52:52,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:52:52,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:52:52,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:52:52,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:52:52,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:52:52,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:52:52,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:52:52,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:52:52,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:52:52,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:52:52,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:52:52,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:52:52,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:52:52,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:52:52,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:52:52,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 04:52:52,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:52:52,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:52:52,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:52:52,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:52:52,647 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:52:52,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:52:52,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:52:52,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:52:52,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:52:52,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:52:52,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:52:52,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:52:52,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:52:52,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:52:52,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:52:52,649 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:52:52,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:52:52,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:52:52,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:52:52,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:52:52,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:52:52,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:52:52,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:52:52,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:52:52,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:52:52,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:52:52,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:52:52,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:52:52,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:52:52,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:52:52,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:52:52,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:52:52,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:52:52,958 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:52:52,958 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:52:52,959 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2019-12-19 04:52:53,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5430606e2/4b1e7caf12ea4287b9aca92006797591/FLAGbc8c8c263 [2019-12-19 04:52:53,572 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:52:53,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2019-12-19 04:52:53,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5430606e2/4b1e7caf12ea4287b9aca92006797591/FLAGbc8c8c263 [2019-12-19 04:52:53,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5430606e2/4b1e7caf12ea4287b9aca92006797591 [2019-12-19 04:52:53,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:52:53,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:52:53,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:52:53,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:52:53,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:52:53,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:52:53" (1/1) ... [2019-12-19 04:52:53,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aedea21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:53, skipping insertion in model container [2019-12-19 04:52:53,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:52:53" (1/1) ... [2019-12-19 04:52:53,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:52:53,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:52:54,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:52:54,525 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:52:54,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:52:54,682 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:52:54,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54 WrapperNode [2019-12-19 04:52:54,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:52:54,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:52:54,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:52:54,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:52:54,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:52:54,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:52:54,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:52:54,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:52:54,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (1/1) ... [2019-12-19 04:52:54,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:52:54,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:52:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:52:54,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:52:54,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (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 [2019-12-19 04:52:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:52:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:52:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:52:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:52:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:52:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:52:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:52:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:52:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:52:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:52:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:52:54,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:52:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:52:54,841 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:52:55,204 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:52:55,204 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:52:55,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:52:55 BoogieIcfgContainer [2019-12-19 04:52:55,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:52:55,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:52:55,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:52:55,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:52:55,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:52:53" (1/3) ... [2019-12-19 04:52:55,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9436ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:52:55, skipping insertion in model container [2019-12-19 04:52:55,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:52:54" (2/3) ... [2019-12-19 04:52:55,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9436ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:52:55, skipping insertion in model container [2019-12-19 04:52:55,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:52:55" (3/3) ... [2019-12-19 04:52:55,219 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2019-12-19 04:52:55,228 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:52:55,228 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:52:55,235 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:52:55,237 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:52:55,267 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,268 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,268 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,269 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,269 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,269 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,270 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,270 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,270 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,271 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,272 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,272 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,272 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,272 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,273 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,277 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,277 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,278 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,278 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,283 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,284 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,284 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,284 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,289 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,289 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,289 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,289 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:52:55,304 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:52:55,326 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:52:55,326 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:52:55,326 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:52:55,327 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:52:55,327 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:52:55,327 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:52:55,327 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:52:55,327 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:52:55,339 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:52:55,420 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:52:55,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:52:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:52:55,439 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:55,440 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:55,441 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:55,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:55,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1559723610, now seen corresponding path program 1 times [2019-12-19 04:52:55,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:55,458 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403662984] [2019-12-19 04:52:55,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:55,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403662984] [2019-12-19 04:52:55,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:55,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:52:55,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563524062] [2019-12-19 04:52:55,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:52:55,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:55,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:52:55,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:52:55,842 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:52:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:55,986 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:52:55,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:52:55,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:52:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:56,029 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:52:56,029 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:52:56,031 INFO L631 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 [2019-12-19 04:52:56,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:52:56,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:52:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:52:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:52:56,128 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:52:56,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:56,129 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:52:56,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:52:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:52:56,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:52:56,138 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:56,138 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:56,138 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:56,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:56,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1171273147, now seen corresponding path program 1 times [2019-12-19 04:52:56,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:56,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140219433] [2019-12-19 04:52:56,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:56,347 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140219433] [2019-12-19 04:52:56,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:56,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:52:56,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254524827] [2019-12-19 04:52:56,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:52:56,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:56,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:52:56,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:52:56,351 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:52:56,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:56,439 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:52:56,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:52:56,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:52:56,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:56,445 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:52:56,446 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:52:56,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:52:56,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:52:56,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:52:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:52:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:52:56,484 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:52:56,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:56,484 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:52:56,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:52:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:52:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:52:56,487 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:56,487 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:56,487 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:56,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1777429343, now seen corresponding path program 1 times [2019-12-19 04:52:56,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:56,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014914087] [2019-12-19 04:52:56,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:56,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014914087] [2019-12-19 04:52:56,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:56,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:52:56,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141317674] [2019-12-19 04:52:56,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:52:56,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:56,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:52:56,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:52:56,598 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:52:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:56,698 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:52:56,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:52:56,699 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:52:56,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:56,702 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:52:56,702 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:52:56,703 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:52:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:52:56,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:52:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:52:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:52:56,719 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:52:56,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:56,719 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:52:56,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:52:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:52:56,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:52:56,721 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:56,721 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:56,721 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:56,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:56,722 INFO L82 PathProgramCache]: Analyzing trace with hash -960362357, now seen corresponding path program 1 times [2019-12-19 04:52:56,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:56,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375827729] [2019-12-19 04:52:56,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:56,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375827729] [2019-12-19 04:52:56,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:56,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:52:56,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767269939] [2019-12-19 04:52:56,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:52:56,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:52:56,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:52:56,903 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 04:52:57,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:57,075 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-19 04:52:57,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:52:57,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:52:57,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:57,079 INFO L225 Difference]: With dead ends: 556 [2019-12-19 04:52:57,080 INFO L226 Difference]: Without dead ends: 385 [2019-12-19 04:52:57,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:52:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-12-19 04:52:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 340. [2019-12-19 04:52:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-19 04:52:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-19 04:52:57,099 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-19 04:52:57,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:57,099 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-19 04:52:57,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:52:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-19 04:52:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:52:57,101 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:57,101 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:57,102 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:57,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:57,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1133610049, now seen corresponding path program 2 times [2019-12-19 04:52:57,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:57,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808418924] [2019-12-19 04:52:57,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:57,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808418924] [2019-12-19 04:52:57,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:57,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:52:57,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375204435] [2019-12-19 04:52:57,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:52:57,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:57,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:52:57,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:52:57,303 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-19 04:52:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:57,478 INFO L93 Difference]: Finished difference Result 547 states and 1452 transitions. [2019-12-19 04:52:57,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 04:52:57,478 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:52:57,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:57,483 INFO L225 Difference]: With dead ends: 547 [2019-12-19 04:52:57,483 INFO L226 Difference]: Without dead ends: 325 [2019-12-19 04:52:57,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-19 04:52:57,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-19 04:52:57,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-12-19 04:52:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-19 04:52:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-19 04:52:57,495 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-19 04:52:57,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:57,496 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-19 04:52:57,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:52:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-19 04:52:57,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:52:57,498 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:57,498 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:57,501 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:57,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:57,502 INFO L82 PathProgramCache]: Analyzing trace with hash -908726199, now seen corresponding path program 3 times [2019-12-19 04:52:57,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:57,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298218427] [2019-12-19 04:52:57,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:57,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298218427] [2019-12-19 04:52:57,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:57,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:52:57,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545645612] [2019-12-19 04:52:57,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:52:57,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:57,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:52:57,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:52:57,683 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-19 04:52:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:57,788 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-19 04:52:57,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:52:57,788 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:52:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:57,791 INFO L225 Difference]: With dead ends: 487 [2019-12-19 04:52:57,791 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 04:52:57,791 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:52:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 04:52:57,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 04:52:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 04:52:57,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 04:52:57,802 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 04:52:57,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:57,803 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 04:52:57,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:52:57,803 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 04:52:57,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:52:57,804 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:52:57,805 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:52:57,805 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:52:57,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:52:57,805 INFO L82 PathProgramCache]: Analyzing trace with hash 76422447, now seen corresponding path program 4 times [2019-12-19 04:52:57,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:52:57,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803170997] [2019-12-19 04:52:57,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:52:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:52:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:52:57,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803170997] [2019-12-19 04:52:57,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:52:57,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:52:57,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843770643] [2019-12-19 04:52:57,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:52:57,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:52:57,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:52:57,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:52:57,935 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-19 04:52:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:52:58,025 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 04:52:58,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:52:58,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:52:58,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:52:58,026 INFO L225 Difference]: With dead ends: 259 [2019-12-19 04:52:58,026 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:52:58,026 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:52:58,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:52:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:52:58,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:52:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:52:58,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:52:58,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:52:58,027 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:52:58,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:52:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:52:58,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:52:58,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:52:58 BasicIcfg [2019-12-19 04:52:58,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:52:58,037 INFO L168 Benchmark]: Toolchain (without parser) took 4104.66 ms. Allocated memory was 145.2 MB in the beginning and 250.6 MB in the end (delta: 105.4 MB). Free memory was 99.9 MB in the beginning and 127.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,038 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.60 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 158.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.46 ms. Allocated memory is still 202.4 MB. Free memory was 158.5 MB in the beginning and 155.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,041 INFO L168 Benchmark]: Boogie Preprocessor took 30.46 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,042 INFO L168 Benchmark]: RCFGBuilder took 424.87 ms. Allocated memory is still 202.4 MB. Free memory was 154.6 MB in the beginning and 134.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,043 INFO L168 Benchmark]: TraceAbstraction took 2827.32 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 134.2 MB in the beginning and 127.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:52:58,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.60 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.4 MB in the beginning and 158.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.46 ms. Allocated memory is still 202.4 MB. Free memory was 158.5 MB in the beginning and 155.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.46 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.87 ms. Allocated memory is still 202.4 MB. Free memory was 154.6 MB in the beginning and 134.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2827.32 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 134.2 MB in the beginning and 127.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 357 SDtfs, 478 SDslu, 1045 SDs, 0 SdLazy, 154 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 7 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 22299 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...