/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:29:08,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:29:08,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:29:08,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:29:08,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:29:08,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:29:08,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:29:08,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:29:08,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:29:08,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:29:08,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:29:08,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:29:08,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:29:08,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:29:08,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:29:08,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:29:08,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:29:08,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:29:08,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:29:08,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:29:08,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:29:08,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:29:08,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:29:08,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:29:08,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 01:29:08,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:29:08,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:29:08,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:29:08,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:29:08,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:29:08,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:29:08,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:29:08,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:29:08,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:29:08,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:29:08,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:29:08,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 01:29:08,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:29:08,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:29:08,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:29:08,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:29:08,917 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:29:08,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:29:08,918 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:29:08,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:29:08,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:29:08,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:29:08,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:29:08,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:29:08,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:29:08,921 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:29:08,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:29:08,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:29:08,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:29:08,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:29:08,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:29:08,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:29:08,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:29:08,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:29:08,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:29:08,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:29:08,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:29:08,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:29:08,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:29:08,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:29:08,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:29:08,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:29:09,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:29:09,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:29:09,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:29:09,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:29:09,437 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:29:09,438 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-09-17 01:29:09,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401d31b80/89ff524c732c410b99e1a3f82262a3de/FLAGbd882fb6a [2020-09-17 01:29:10,205 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:29:10,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i [2020-09-17 01:29:10,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401d31b80/89ff524c732c410b99e1a3f82262a3de/FLAGbd882fb6a [2020-09-17 01:29:10,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401d31b80/89ff524c732c410b99e1a3f82262a3de [2020-09-17 01:29:10,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:29:10,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:29:10,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:29:10,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:29:10,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:29:10,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:29:10" (1/1) ... [2020-09-17 01:29:10,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67abc2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:10, skipping insertion in model container [2020-09-17 01:29:10,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:29:10" (1/1) ... [2020-09-17 01:29:10,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:29:10,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:29:10,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:29:11,012 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:29:11,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:29:11,152 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:29:11,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11 WrapperNode [2020-09-17 01:29:11,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:29:11,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:29:11,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:29:11,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:29:11,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:29:11,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:29:11,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:29:11,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:29:11,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... [2020-09-17 01:29:11,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:29:11,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:29:11,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:29:11,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:29:11,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:29:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:29:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:29:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:29:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:29:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:29:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:29:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:29:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:29:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 01:29:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 01:29:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:29:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:29:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:29:11,355 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:29:11,768 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:29:11,768 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:29:11,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:29:11 BoogieIcfgContainer [2020-09-17 01:29:11,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:29:11,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:29:11,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:29:11,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:29:11,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:29:10" (1/3) ... [2020-09-17 01:29:11,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7037ef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:29:11, skipping insertion in model container [2020-09-17 01:29:11,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:11" (2/3) ... [2020-09-17 01:29:11,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7037ef00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:29:11, skipping insertion in model container [2020-09-17 01:29:11,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:29:11" (3/3) ... [2020-09-17 01:29:11,789 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i [2020-09-17 01:29:11,800 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:29:11,800 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:29:11,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:29:11,810 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:29:11,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,842 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,865 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,866 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,866 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:11,892 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 01:29:11,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:29:11,921 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:29:11,921 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:29:11,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:29:11,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:29:11,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:29:11,922 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:29:11,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:29:11,939 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:11,942 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:11,992 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:29:11,993 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:29:11,999 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:29:12,004 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:12,037 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:29:12,037 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:29:12,041 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:29:12,044 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 01:29:12,046 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:29:13,437 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-17 01:29:13,554 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-09-17 01:29:13,554 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-17 01:29:13,560 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-17 01:29:13,606 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-17 01:29:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-17 01:29:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:29:13,623 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:13,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:13,625 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:13,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:13,634 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-09-17 01:29:13,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:13,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507914789] [2020-09-17 01:29:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:13,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507914789] [2020-09-17 01:29:13,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:13,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:29:13,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589033061] [2020-09-17 01:29:13,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 01:29:13,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:13,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 01:29:13,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:29:13,937 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-17 01:29:13,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:13,976 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-17 01:29:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 01:29:13,978 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-17 01:29:13,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:14,003 INFO L225 Difference]: With dead ends: 362 [2020-09-17 01:29:14,003 INFO L226 Difference]: Without dead ends: 298 [2020-09-17 01:29:14,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:29:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-17 01:29:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-17 01:29:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-17 01:29:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-17 01:29:14,090 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-17 01:29:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:14,091 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-17 01:29:14,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 01:29:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-17 01:29:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:29:14,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:14,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:14,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:29:14,094 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:14,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:14,095 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-09-17 01:29:14,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:14,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373947427] [2020-09-17 01:29:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:14,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:14,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373947427] [2020-09-17 01:29:14,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:14,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:29:14,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433875128] [2020-09-17 01:29:14,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:29:14,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:14,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:29:14,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:29:14,204 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-17 01:29:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:14,223 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-17 01:29:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:29:14,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 01:29:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:14,226 INFO L225 Difference]: With dead ends: 217 [2020-09-17 01:29:14,227 INFO L226 Difference]: Without dead ends: 217 [2020-09-17 01:29:14,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:29:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-17 01:29:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-17 01:29:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-17 01:29:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-17 01:29:14,245 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-17 01:29:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:14,246 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-17 01:29:14,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:29:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-17 01:29:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:29:14,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:14,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:14,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:29:14,248 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:14,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-09-17 01:29:14,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:14,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880879804] [2020-09-17 01:29:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:14,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880879804] [2020-09-17 01:29:14,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:14,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:29:14,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016881684] [2020-09-17 01:29:14,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:29:14,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:14,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:29:14,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:29:14,365 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-17 01:29:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:14,397 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-17 01:29:14,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 01:29:14,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 01:29:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:14,399 INFO L225 Difference]: With dead ends: 136 [2020-09-17 01:29:14,399 INFO L226 Difference]: Without dead ends: 136 [2020-09-17 01:29:14,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:29:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-17 01:29:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-17 01:29:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-17 01:29:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-17 01:29:14,409 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-17 01:29:14,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:14,409 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-17 01:29:14,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:29:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-17 01:29:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:29:14,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:14,411 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:14,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:29:14,412 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:14,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:14,412 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-09-17 01:29:14,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:14,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695918188] [2020-09-17 01:29:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:14,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695918188] [2020-09-17 01:29:14,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:14,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:14,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313368474] [2020-09-17 01:29:14,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:14,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:14,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:14,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:14,501 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-17 01:29:14,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:14,531 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-17 01:29:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:14,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-17 01:29:14,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:14,533 INFO L225 Difference]: With dead ends: 109 [2020-09-17 01:29:14,534 INFO L226 Difference]: Without dead ends: 109 [2020-09-17 01:29:14,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-17 01:29:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-17 01:29:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-17 01:29:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-17 01:29:14,541 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-17 01:29:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:14,541 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-17 01:29:14,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-17 01:29:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:14,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:14,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:14,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:29:14,544 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:14,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-09-17 01:29:14,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:14,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883524957] [2020-09-17 01:29:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:14,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883524957] [2020-09-17 01:29:14,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:14,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:14,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452733023] [2020-09-17 01:29:14,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:14,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:14,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:14,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:14,654 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-09-17 01:29:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:14,704 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-17 01:29:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:14,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:14,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:14,706 INFO L225 Difference]: With dead ends: 135 [2020-09-17 01:29:14,706 INFO L226 Difference]: Without dead ends: 85 [2020-09-17 01:29:14,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:14,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-17 01:29:14,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-17 01:29:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-17 01:29:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-09-17 01:29:14,712 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-09-17 01:29:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:14,712 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-09-17 01:29:14,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-09-17 01:29:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:14,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:14,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:14,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:29:14,714 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-09-17 01:29:14,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:14,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803978394] [2020-09-17 01:29:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:14,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803978394] [2020-09-17 01:29:14,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:14,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:14,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074239106] [2020-09-17 01:29:14,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:14,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:14,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:14,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:14,808 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-09-17 01:29:14,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:14,865 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-09-17 01:29:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:14,865 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:14,866 INFO L225 Difference]: With dead ends: 99 [2020-09-17 01:29:14,867 INFO L226 Difference]: Without dead ends: 37 [2020-09-17 01:29:14,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-17 01:29:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-17 01:29:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-17 01:29:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-17 01:29:14,873 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-17 01:29:14,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:14,874 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-17 01:29:14,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-17 01:29:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:14,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:14,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:14,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 01:29:14,877 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:14,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:14,878 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-09-17 01:29:14,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:14,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228172923] [2020-09-17 01:29:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:15,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:15,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228172923] [2020-09-17 01:29:15,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:15,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:15,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840455236] [2020-09-17 01:29:15,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:15,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:15,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:15,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:15,010 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-09-17 01:29:15,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:15,046 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-17 01:29:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:15,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:15,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:15,047 INFO L225 Difference]: With dead ends: 36 [2020-09-17 01:29:15,047 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:29:15,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:29:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:29:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:29:15,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:29:15,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-17 01:29:15,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:15,049 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:29:15,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:29:15,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:29:15,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 01:29:15,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:29:15 BasicIcfg [2020-09-17 01:29:15,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:29:15,059 INFO L168 Benchmark]: Toolchain (without parser) took 4644.07 ms. Allocated memory was 144.7 MB in the beginning and 250.6 MB in the end (delta: 105.9 MB). Free memory was 98.7 MB in the beginning and 99.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 104.7 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,067 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 144.7 MB. Free memory was 118.0 MB in the beginning and 117.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.34 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 98.0 MB in the beginning and 158.8 MB in the end (delta: -60.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.86 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 156.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,070 INFO L168 Benchmark]: Boogie Preprocessor took 44.22 ms. Allocated memory is still 201.3 MB. Free memory was 156.7 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,071 INFO L168 Benchmark]: RCFGBuilder took 511.44 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 133.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,075 INFO L168 Benchmark]: TraceAbstraction took 3280.17 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 132.4 MB in the beginning and 99.9 MB in the end (delta: 32.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:15,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 144.7 MB. Free memory was 118.0 MB in the beginning and 117.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.34 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 98.0 MB in the beginning and 158.8 MB in the end (delta: -60.7 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 63.86 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 156.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.22 ms. Allocated memory is still 201.3 MB. Free memory was 156.7 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 511.44 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 133.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3280.17 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 132.4 MB in the beginning and 99.9 MB in the end (delta: 32.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 663 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...