/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-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:24:33,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:24:33,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:24:33,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:24:33,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:24:33,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:24:33,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:24:33,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:24:33,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:24:33,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:24:33,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:24:33,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:24:33,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:24:33,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:24:33,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:24:33,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:24:33,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:24:33,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:24:33,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:24:33,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:24:33,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:24:33,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:24:33,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:24:33,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:24:33,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:24:33,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:24:33,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:24:33,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:24:33,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:24:33,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:24:33,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:24:33,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:24:33,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:24:33,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:24:33,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:24:33,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:24:33,814 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-VariableLbe-MCR.epf [2019-12-27 22:24:33,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:24:33,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:24:33,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:24:33,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:24:33,830 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:24:33,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:24:33,831 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:24:33,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:24:33,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:24:33,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:24:33,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:24:33,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:24:33,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:24:33,832 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:24:33,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:24:33,833 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:24:33,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:24:33,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:24:33,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:24:33,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:24:33,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:24:33,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:24:33,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:24:33,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:24:33,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:24:33,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:24:33,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:24:33,835 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:24:33,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:24:33,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:24:33,836 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:24:33,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:24:34,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:24:34,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:24:34,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:24:34,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:24:34,112 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:24:34,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-27 22:24:34,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f3cc6bf/1a926cfbd4054c67881ab695e563bd2f/FLAGa3be0befa [2019-12-27 22:24:34,741 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:24:34,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-27 22:24:34,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f3cc6bf/1a926cfbd4054c67881ab695e563bd2f/FLAGa3be0befa [2019-12-27 22:24:35,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f3cc6bf/1a926cfbd4054c67881ab695e563bd2f [2019-12-27 22:24:35,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:24:35,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:24:35,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:24:35,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:24:35,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:24:35,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7e5a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35, skipping insertion in model container [2019-12-27 22:24:35,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:24:35,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:24:35,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:24:35,617 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:24:35,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:24:35,762 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:24:35,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35 WrapperNode [2019-12-27 22:24:35,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:24:35,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:24:35,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:24:35,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:24:35,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:24:35,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:24:35,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:24:35,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:24:35,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (1/1) ... [2019-12-27 22:24:35,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:24:35,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:24:35,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:24:35,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:24:35,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (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 [2019-12-27 22:24:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:24:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:24:35,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:24:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:24:35,911 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:24:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:24:35,912 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:24:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:24:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:24:35,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:24:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:24:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:24:35,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:24:35,915 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:24:36,237 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:24:36,238 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:24:36,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:24:36 BoogieIcfgContainer [2019-12-27 22:24:36,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:24:36,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:24:36,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:24:36,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:24:36,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:24:35" (1/3) ... [2019-12-27 22:24:36,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a8a80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:24:36, skipping insertion in model container [2019-12-27 22:24:36,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:24:35" (2/3) ... [2019-12-27 22:24:36,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a8a80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:24:36, skipping insertion in model container [2019-12-27 22:24:36,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:24:36" (3/3) ... [2019-12-27 22:24:36,246 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-27 22:24:36,255 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:24:36,256 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:24:36,262 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:24:36,262 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:24:36,291 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,292 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,292 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,293 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,293 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,293 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,294 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,294 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,294 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,295 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,295 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,295 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,302 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,302 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,303 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,303 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,303 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,304 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,309 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,309 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,309 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,313 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,321 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,323 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,323 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,324 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,342 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,342 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,342 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:24:36,357 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:24:36,372 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:24:36,372 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:24:36,372 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:24:36,373 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:24:36,373 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:24:36,373 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:24:36,373 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:24:36,373 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:24:36,386 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 22:24:36,388 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:24:36,441 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:24:36,441 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:24:36,447 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:24:36,451 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:24:36,470 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:24:36,471 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:24:36,473 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:24:36,474 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:24:36,475 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:24:37,691 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 22:24:37,762 INFO L206 etLargeBlockEncoding]: Checked pairs total: 507 [2019-12-27 22:24:37,762 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:24:37,766 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 22:24:37,777 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 22:24:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 22:24:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:24:37,787 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:24:37,787 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:24:37,788 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:24:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:24:37,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1331014227, now seen corresponding path program 1 times [2019-12-27 22:24:37,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:24:37,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235112055] [2019-12-27 22:24:37,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:24:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:24:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:24:38,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235112055] [2019-12-27 22:24:38,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:24:38,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:24:38,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1028692884] [2019-12-27 22:24:38,039 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:24:38,050 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:24:38,077 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:24:38,077 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:24:38,081 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:24:38,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:24:38,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:24:38,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:24:38,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,100 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 22:24:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:24:38,121 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 22:24:38,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:24:38,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:24:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:24:38,144 INFO L225 Difference]: With dead ends: 52 [2019-12-27 22:24:38,145 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:24:38,152 INFO L631 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 [2019-12-27 22:24:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:24:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 22:24:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 22:24:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 22:24:38,198 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 22:24:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:24:38,200 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 22:24:38,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:24:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 22:24:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:24:38,201 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:24:38,201 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:24:38,201 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:24:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:24:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash 660414012, now seen corresponding path program 1 times [2019-12-27 22:24:38,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:24:38,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095095284] [2019-12-27 22:24:38,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:24:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:24:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:24:38,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095095284] [2019-12-27 22:24:38,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:24:38,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:24:38,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1861099549] [2019-12-27 22:24:38,295 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:24:38,296 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:24:38,299 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 22:24:38,299 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:24:38,301 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:24:38,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:24:38,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:24:38,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:24:38,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,303 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 22:24:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:24:38,325 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-27 22:24:38,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:24:38,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:24:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:24:38,328 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:24:38,328 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:24:38,329 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:24:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 22:24:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:24:38,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-27 22:24:38,341 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-27 22:24:38,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:24:38,342 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-27 22:24:38,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:24:38,342 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-27 22:24:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:24:38,344 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:24:38,344 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:24:38,344 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:24:38,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:24:38,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1689946933, now seen corresponding path program 1 times [2019-12-27 22:24:38,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:24:38,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340642360] [2019-12-27 22:24:38,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:24:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:24:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:24:38,417 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340642360] [2019-12-27 22:24:38,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:24:38,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:24:38,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [374158435] [2019-12-27 22:24:38,418 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:24:38,418 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:24:38,420 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 22:24:38,420 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:24:38,420 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:24:38,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:24:38,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:24:38,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:24:38,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,422 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-27 22:24:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:24:38,430 INFO L93 Difference]: Finished difference Result 33 states and 55 transitions. [2019-12-27 22:24:38,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:24:38,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:24:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:24:38,432 INFO L225 Difference]: With dead ends: 33 [2019-12-27 22:24:38,432 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 22:24:38,432 INFO L631 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 [2019-12-27 22:24:38,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 22:24:38,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 22:24:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 22:24:38,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 55 transitions. [2019-12-27 22:24:38,437 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 55 transitions. Word has length 9 [2019-12-27 22:24:38,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:24:38,437 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 55 transitions. [2019-12-27 22:24:38,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:24:38,438 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2019-12-27 22:24:38,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:24:38,438 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:24:38,438 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:24:38,438 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:24:38,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:24:38,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1003717118, now seen corresponding path program 1 times [2019-12-27 22:24:38,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:24:38,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158864728] [2019-12-27 22:24:38,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:24:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:24:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:24:38,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158864728] [2019-12-27 22:24:38,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:24:38,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:24:38,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [260178428] [2019-12-27 22:24:38,511 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:24:38,512 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:24:38,514 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 22:24:38,514 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:24:38,514 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:24:38,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:24:38,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:24:38,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:24:38,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,516 INFO L87 Difference]: Start difference. First operand 33 states and 55 transitions. Second operand 3 states. [2019-12-27 22:24:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:24:38,527 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 22:24:38,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:24:38,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:24:38,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:24:38,528 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:24:38,528 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:24:38,528 INFO L631 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 [2019-12-27 22:24:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:24:38,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:24:38,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:24:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-27 22:24:38,533 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 10 [2019-12-27 22:24:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:24:38,533 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-27 22:24:38,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:24:38,533 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-27 22:24:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:24:38,534 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:24:38,534 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:24:38,534 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:24:38,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:24:38,535 INFO L82 PathProgramCache]: Analyzing trace with hash -848747306, now seen corresponding path program 1 times [2019-12-27 22:24:38,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:24:38,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167193718] [2019-12-27 22:24:38,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:24:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:24:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:24:38,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167193718] [2019-12-27 22:24:38,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:24:38,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:24:38,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1113839680] [2019-12-27 22:24:38,573 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:24:38,574 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:24:38,575 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:24:38,575 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:24:38,576 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:24:38,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:24:38,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:24:38,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:24:38,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,577 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 3 states. [2019-12-27 22:24:38,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:24:38,590 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2019-12-27 22:24:38,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:24:38,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:24:38,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:24:38,591 INFO L225 Difference]: With dead ends: 35 [2019-12-27 22:24:38,591 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 22:24:38,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:24:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 22:24:38,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 22:24:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 22:24:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 22:24:38,594 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-12-27 22:24:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:24:38,594 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 22:24:38,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:24:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 22:24:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:24:38,595 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:24:38,595 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:24:38,596 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:24:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:24:38,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1106814665, now seen corresponding path program 1 times [2019-12-27 22:24:38,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:24:38,597 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586368309] [2019-12-27 22:24:38,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:24:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:24:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:24:38,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586368309] [2019-12-27 22:24:38,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:24:38,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:24:38,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [234775726] [2019-12-27 22:24:38,652 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:24:38,653 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:24:38,655 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:24:38,655 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:24:38,656 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:24:38,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:24:38,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:24:38,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:24:38,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:24:38,657 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 22:24:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:24:38,672 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 22:24:38,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:24:38,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:24:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:24:38,673 INFO L225 Difference]: With dead ends: 14 [2019-12-27 22:24:38,673 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:24:38,674 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:24:38,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:24:38,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:24:38,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:24:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:24:38,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:24:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:24:38,675 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:24:38,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:24:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:24:38,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:24:38,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:24:38 BasicIcfg [2019-12-27 22:24:38,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:24:38,682 INFO L168 Benchmark]: Toolchain (without parser) took 3620.89 ms. Allocated memory was 144.7 MB in the beginning and 248.0 MB in the end (delta: 103.3 MB). Free memory was 99.6 MB in the beginning and 167.0 MB in the end (delta: -67.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,683 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.20 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 159.5 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.27 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 156.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,685 INFO L168 Benchmark]: Boogie Preprocessor took 26.20 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,686 INFO L168 Benchmark]: RCFGBuilder took 397.23 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 135.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,689 INFO L168 Benchmark]: TraceAbstraction took 2440.14 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 135.2 MB in the beginning and 167.0 MB in the end (delta: -31.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:24:38,699 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.20 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 159.5 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.27 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 156.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.20 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.23 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 135.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2440.14 ms. Allocated memory was 202.4 MB in the beginning and 248.0 MB in the end (delta: 45.6 MB). Free memory was 135.2 MB in the beginning and 167.0 MB in the end (delta: -31.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 249 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 507 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 75 SDtfs, 14 SDslu, 31 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1141 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...