./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/17_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/17_szymanski.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 163d317c9aa89a15ed49ae50938a3120a9d146c8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:58:02,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:58:02,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:58:02,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:58:02,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:58:02,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:58:02,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:58:02,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:58:02,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:58:02,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:58:02,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:58:02,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:58:02,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:58:02,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:58:02,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:58:02,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:58:02,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:58:02,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:58:02,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:58:02,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:58:02,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:58:02,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:58:02,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:58:02,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:58:02,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:58:02,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:58:02,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:58:02,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:58:02,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:58:02,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:58:02,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:58:02,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:58:02,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:58:02,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:58:02,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:58:02,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:58:02,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:58:02,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:58:02,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:58:02,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:58:02,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:58:02,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:58:02,778 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:58:02,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:58:02,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:58:02,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:58:02,780 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:58:02,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:58:02,780 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:58:02,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:58:02,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:58:02,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:58:02,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:58:02,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:58:02,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:58:02,782 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:58:02,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:58:02,782 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:58:02,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:58:02,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:58:02,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:58:02,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:58:02,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:58:02,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:58:02,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:58:02,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:58:02,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:58:02,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:58:02,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:58:02,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:58:02,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:58:02,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 163d317c9aa89a15ed49ae50938a3120a9d146c8 [2019-11-28 17:58:03,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:58:03,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:58:03,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:58:03,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:58:03,110 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:58:03,111 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/17_szymanski.i [2019-11-28 17:58:03,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781aedd22/ec3da48a2f68477fbb03b87822cf3aac/FLAG58c5ab3dc [2019-11-28 17:58:03,674 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:58:03,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/17_szymanski.i [2019-11-28 17:58:03,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781aedd22/ec3da48a2f68477fbb03b87822cf3aac/FLAG58c5ab3dc [2019-11-28 17:58:03,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/781aedd22/ec3da48a2f68477fbb03b87822cf3aac [2019-11-28 17:58:03,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:58:03,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:58:03,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:58:03,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:58:03,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:58:03,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:03" (1/1) ... [2019-11-28 17:58:03,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:03, skipping insertion in model container [2019-11-28 17:58:03,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:03" (1/1) ... [2019-11-28 17:58:03,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:58:04,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:58:04,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:58:04,479 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:58:04,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:58:04,648 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:58:04,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04 WrapperNode [2019-11-28 17:58:04,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:58:04,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:58:04,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:58:04,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:58:04,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:58:04,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:58:04,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:58:04,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:58:04,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (1/1) ... [2019-11-28 17:58:04,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:58:04,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:58:04,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:58:04,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:58:04,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (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 [2019-11-28 17:58:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-28 17:58:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-28 17:58:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 17:58:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:58:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 17:58:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:58:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:58:04,840 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 17:58:05,218 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:58:05,219 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-28 17:58:05,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:05 BoogieIcfgContainer [2019-11-28 17:58:05,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:58:05,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:58:05,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:58:05,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:58:05,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:03" (1/3) ... [2019-11-28 17:58:05,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cf9ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:05, skipping insertion in model container [2019-11-28 17:58:05,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:04" (2/3) ... [2019-11-28 17:58:05,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cf9ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:05, skipping insertion in model container [2019-11-28 17:58:05,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:05" (3/3) ... [2019-11-28 17:58:05,228 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2019-11-28 17:58:05,237 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 17:58:05,238 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:58:05,245 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 17:58:05,246 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 17:58:05,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:58:05,270 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:58:05,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:58:05,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:58:05,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:58:05,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 17:58:05,286 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 17:58:05,302 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:58:05,302 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:58:05,302 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:58:05,303 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:58:05,303 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:58:05,303 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:58:05,303 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:58:05,303 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:58:05,314 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions [2019-11-28 17:58:05,316 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions [2019-11-28 17:58:05,357 INFO L134 PetriNetUnfolder]: 24/81 cut-off events. [2019-11-28 17:58:05,358 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 17:58:05,370 INFO L76 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 253 event pairs. 3/58 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2019-11-28 17:58:05,376 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions [2019-11-28 17:58:05,405 INFO L134 PetriNetUnfolder]: 24/81 cut-off events. [2019-11-28 17:58:05,406 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 17:58:05,410 INFO L76 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 253 event pairs. 3/58 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2019-11-28 17:58:05,418 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2400 [2019-11-28 17:58:05,420 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 17:58:06,276 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4233 [2019-11-28 17:58:06,276 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2019-11-28 17:58:06,281 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 51 transitions [2019-11-28 17:58:06,321 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2019-11-28 17:58:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2019-11-28 17:58:06,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 17:58:06,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:06,337 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:06,337 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:06,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2019-11-28 17:58:06,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:06,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407529527] [2019-11-28 17:58:06,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:06,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407529527] [2019-11-28 17:58:06,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:06,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:58:06,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763624609] [2019-11-28 17:58:06,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:58:06,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:06,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:58:06,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:58:06,592 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2019-11-28 17:58:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:06,623 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2019-11-28 17:58:06,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:58:06,625 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-28 17:58:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:06,645 INFO L225 Difference]: With dead ends: 198 [2019-11-28 17:58:06,646 INFO L226 Difference]: Without dead ends: 198 [2019-11-28 17:58:06,647 INFO L630 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 [2019-11-28 17:58:06,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-11-28 17:58:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2019-11-28 17:58:06,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-11-28 17:58:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2019-11-28 17:58:06,710 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2019-11-28 17:58:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:06,711 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2019-11-28 17:58:06,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:58:06,711 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2019-11-28 17:58:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 17:58:06,715 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:06,715 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:06,715 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:06,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:06,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2019-11-28 17:58:06,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:06,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709691749] [2019-11-28 17:58:06,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:06,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709691749] [2019-11-28 17:58:06,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:06,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:58:06,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176430546] [2019-11-28 17:58:06,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:58:06,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:06,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:58:06,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:06,786 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2019-11-28 17:58:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:06,843 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2019-11-28 17:58:06,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:58:06,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 17:58:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:06,856 INFO L225 Difference]: With dead ends: 362 [2019-11-28 17:58:06,856 INFO L226 Difference]: Without dead ends: 362 [2019-11-28 17:58:06,859 INFO L630 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 [2019-11-28 17:58:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-11-28 17:58:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2019-11-28 17:58:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-11-28 17:58:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2019-11-28 17:58:06,907 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2019-11-28 17:58:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:06,910 INFO L462 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2019-11-28 17:58:06,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:58:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2019-11-28 17:58:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 17:58:06,911 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:06,912 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:06,912 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:06,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2019-11-28 17:58:06,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:06,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795864444] [2019-11-28 17:58:06,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:06,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:06,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795864444] [2019-11-28 17:58:06,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:06,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:58:06,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928364195] [2019-11-28 17:58:06,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:58:06,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:06,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:58:06,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:06,968 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2019-11-28 17:58:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:06,990 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2019-11-28 17:58:06,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:58:06,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 17:58:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:06,994 INFO L225 Difference]: With dead ends: 348 [2019-11-28 17:58:06,995 INFO L226 Difference]: Without dead ends: 348 [2019-11-28 17:58:06,995 INFO L630 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 [2019-11-28 17:58:06,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-28 17:58:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2019-11-28 17:58:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-11-28 17:58:07,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2019-11-28 17:58:07,012 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2019-11-28 17:58:07,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:07,013 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2019-11-28 17:58:07,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:58:07,013 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2019-11-28 17:58:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:58:07,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:07,015 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:07,016 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:07,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2019-11-28 17:58:07,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:07,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825238925] [2019-11-28 17:58:07,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:07,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825238925] [2019-11-28 17:58:07,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:07,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:58:07,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684593960] [2019-11-28 17:58:07,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:58:07,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:07,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:58:07,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,080 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2019-11-28 17:58:07,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:07,132 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2019-11-28 17:58:07,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:58:07,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 17:58:07,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:07,135 INFO L225 Difference]: With dead ends: 220 [2019-11-28 17:58:07,135 INFO L226 Difference]: Without dead ends: 220 [2019-11-28 17:58:07,136 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-11-28 17:58:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2019-11-28 17:58:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-11-28 17:58:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2019-11-28 17:58:07,149 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2019-11-28 17:58:07,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:07,150 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2019-11-28 17:58:07,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:58:07,150 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2019-11-28 17:58:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:58:07,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:07,156 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:07,156 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:07,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:07,157 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2019-11-28 17:58:07,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:07,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849435529] [2019-11-28 17:58:07,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:07,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:07,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849435529] [2019-11-28 17:58:07,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:07,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:58:07,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769580164] [2019-11-28 17:58:07,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:58:07,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:07,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:58:07,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,191 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2019-11-28 17:58:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:07,259 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2019-11-28 17:58:07,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:58:07,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 17:58:07,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:07,262 INFO L225 Difference]: With dead ends: 240 [2019-11-28 17:58:07,262 INFO L226 Difference]: Without dead ends: 240 [2019-11-28 17:58:07,262 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-11-28 17:58:07,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2019-11-28 17:58:07,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-11-28 17:58:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2019-11-28 17:58:07,276 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2019-11-28 17:58:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:07,277 INFO L462 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2019-11-28 17:58:07,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:58:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2019-11-28 17:58:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:58:07,280 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:07,280 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:07,282 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:07,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:07,284 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2019-11-28 17:58:07,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:07,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794549017] [2019-11-28 17:58:07,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:07,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794549017] [2019-11-28 17:58:07,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:07,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:58:07,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885717767] [2019-11-28 17:58:07,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:58:07,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:07,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:58:07,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,339 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2019-11-28 17:58:07,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:07,381 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2019-11-28 17:58:07,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:58:07,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 17:58:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:07,389 INFO L225 Difference]: With dead ends: 228 [2019-11-28 17:58:07,389 INFO L226 Difference]: Without dead ends: 228 [2019-11-28 17:58:07,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-11-28 17:58:07,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-28 17:58:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-28 17:58:07,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2019-11-28 17:58:07,401 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2019-11-28 17:58:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:07,402 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2019-11-28 17:58:07,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:58:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2019-11-28 17:58:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:58:07,403 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:58:07,403 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:58:07,404 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:58:07,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:58:07,404 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2019-11-28 17:58:07,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:58:07,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986586940] [2019-11-28 17:58:07,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:58:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:58:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:58:07,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986586940] [2019-11-28 17:58:07,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:58:07,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:58:07,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247990330] [2019-11-28 17:58:07,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:58:07,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:58:07,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:58:07,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,456 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2019-11-28 17:58:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:58:07,497 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2019-11-28 17:58:07,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:58:07,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 17:58:07,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:58:07,498 INFO L225 Difference]: With dead ends: 194 [2019-11-28 17:58:07,498 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:58:07,498 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:58:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:58:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:58:07,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:58:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:58:07,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-28 17:58:07,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:58:07,500 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:58:07,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:58:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:58:07,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:58:07,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:58:07 BasicIcfg [2019-11-28 17:58:07,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:58:07,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:58:07,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:58:07,506 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:58:07,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:05" (3/4) ... [2019-11-28 17:58:07,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:58:07,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-11-28 17:58:07,527 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-28 17:58:07,528 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 17:58:07,528 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 17:58:07,597 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:58:07,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:58:07,600 INFO L168 Benchmark]: Toolchain (without parser) took 3622.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.3 MB in the beginning and 876.6 MB in the end (delta: 79.8 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:58:07,601 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:58:07,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:58:07,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:58:07,603 INFO L168 Benchmark]: Boogie Preprocessor took 37.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:58:07,604 INFO L168 Benchmark]: RCFGBuilder took 446.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:58:07,604 INFO L168 Benchmark]: TraceAbstraction took 2284.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 883.2 MB in the end (delta: 199.4 MB). Peak memory consumption was 199.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:58:07,605 INFO L168 Benchmark]: Witness Printer took 91.56 ms. Allocated memory is still 1.2 GB. Free memory was 883.2 MB in the beginning and 876.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:58:07,609 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 670.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 446.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2284.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 883.2 MB in the end (delta: 199.4 MB). Peak memory consumption was 199.4 MB. Max. memory is 11.5 GB. * Witness Printer took 91.56 ms. Allocated memory is still 1.2 GB. Free memory was 883.2 MB in the beginning and 876.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 62 ProgramPointsBefore, 33 ProgramPointsAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 990 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 40 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 4233 CheckedPairsTotal, 39 TotalNumberOfCompositions - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 2 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 373 SDtfs, 152 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, 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, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...