./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/goblint-regression/28-race_reach_46-escape_racefree.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 02:57:08,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 02:57:08,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 02:57:08,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 02:57:08,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 02:57:08,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 02:57:08,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 02:57:08,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 02:57:08,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 02:57:08,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 02:57:08,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 02:57:08,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 02:57:08,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 02:57:08,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 02:57:08,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 02:57:08,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 02:57:08,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 02:57:08,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 02:57:08,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 02:57:08,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 02:57:08,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 02:57:08,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 02:57:08,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 02:57:08,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 02:57:08,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 02:57:08,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 02:57:08,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 02:57:08,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 02:57:08,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 02:57:08,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 02:57:08,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 02:57:08,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 02:57:08,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 02:57:08,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 02:57:08,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 02:57:08,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 02:57:08,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 02:57:08,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 02:57:08,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 02:57:08,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 02:57:08,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 02:57:08,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 02:57:08,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 02:57:08,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 02:57:08,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 02:57:08,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 02:57:08,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 02:57:08,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 02:57:08,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 02:57:08,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 02:57:08,872 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 02:57:08,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 02:57:08,873 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 02:57:08,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 02:57:08,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 02:57:08,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 02:57:08,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 02:57:08,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 02:57:08,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 02:57:08,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 02:57:08,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 02:57:08,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 02:57:08,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 02:57:08,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 02:57:08,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 02:57:08,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 02:57:08,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:57:08,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 02:57:08,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 02:57:08,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 02:57:08,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 02:57:08,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 02:57:08,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 02:57:08,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 02:57:08,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 02:57:08,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2021-12-28 02:57:09,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 02:57:09,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 02:57:09,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 02:57:09,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 02:57:09,238 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 02:57:09,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-12-28 02:57:09,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ac03714/93ba418b0a8d4e149b29322dea1c67e5/FLAG6b4bc7f3c [2021-12-28 02:57:09,729 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 02:57:09,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-12-28 02:57:09,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ac03714/93ba418b0a8d4e149b29322dea1c67e5/FLAG6b4bc7f3c [2021-12-28 02:57:10,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5ac03714/93ba418b0a8d4e149b29322dea1c67e5 [2021-12-28 02:57:10,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 02:57:10,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 02:57:10,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 02:57:10,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 02:57:10,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 02:57:10,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73bff06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10, skipping insertion in model container [2021-12-28 02:57:10,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 02:57:10,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 02:57:10,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2021-12-28 02:57:10,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:57:10,486 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 02:57:10,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2021-12-28 02:57:10,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 02:57:10,548 INFO L208 MainTranslator]: Completed translation [2021-12-28 02:57:10,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10 WrapperNode [2021-12-28 02:57:10,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 02:57:10,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 02:57:10,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 02:57:10,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 02:57:10,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,585 INFO L137 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2021-12-28 02:57:10,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 02:57:10,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 02:57:10,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 02:57:10,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 02:57:10,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 02:57:10,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 02:57:10,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 02:57:10,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 02:57:10,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (1/1) ... [2021-12-28 02:57:10,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 02:57:10,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 02:57:10,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 02:57:10,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 02:57:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 02:57:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 02:57:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-28 02:57:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 02:57:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 02:57:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-28 02:57:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-28 02:57:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 02:57:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 02:57:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 02:57:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 02:57:10,692 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 02:57:10,850 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 02:57:10,855 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 02:57:11,067 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 02:57:11,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 02:57:11,075 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-12-28 02:57:11,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:57:11 BoogieIcfgContainer [2021-12-28 02:57:11,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 02:57:11,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 02:57:11,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 02:57:11,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 02:57:11,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 02:57:10" (1/3) ... [2021-12-28 02:57:11,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6881b496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:57:11, skipping insertion in model container [2021-12-28 02:57:11,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 02:57:10" (2/3) ... [2021-12-28 02:57:11,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6881b496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 02:57:11, skipping insertion in model container [2021-12-28 02:57:11,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:57:11" (3/3) ... [2021-12-28 02:57:11,087 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-12-28 02:57:11,091 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 02:57:11,091 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 02:57:11,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 02:57:11,092 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 02:57:11,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,119 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,120 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,120 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,120 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,121 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,121 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,121 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,121 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,121 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,122 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,122 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,122 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,122 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,122 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,123 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,123 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,123 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,124 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,125 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,125 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,125 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,125 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,126 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,126 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,126 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,126 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,127 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,127 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,127 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,127 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,128 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,128 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,128 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,128 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,128 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,129 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,129 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,129 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,129 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,129 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,130 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,130 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,130 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,131 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,131 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,131 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,131 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,132 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,132 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,132 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,132 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,133 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,133 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,134 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,134 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,134 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,134 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,135 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,136 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,139 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,139 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,139 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,140 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,140 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,140 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,141 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,141 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,141 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 02:57:11,145 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-28 02:57:11,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 02:57:11,191 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 02:57:11,192 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-28 02:57:11,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 110 transitions, 228 flow [2021-12-28 02:57:11,247 INFO L129 PetriNetUnfolder]: 9/109 cut-off events. [2021-12-28 02:57:11,247 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:57:11,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 9/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 57. Up to 3 conditions per place. [2021-12-28 02:57:11,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 110 transitions, 228 flow [2021-12-28 02:57:11,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 99 transitions, 201 flow [2021-12-28 02:57:11,278 INFO L129 PetriNetUnfolder]: 2/85 cut-off events. [2021-12-28 02:57:11,278 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:57:11,279 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:57:11,279 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:57:11,280 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:57:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:57:11,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1929624586, now seen corresponding path program 1 times [2021-12-28 02:57:11,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:57:11,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082844944] [2021-12-28 02:57:11,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:57:11,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:57:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:57:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:57:11,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:57:11,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082844944] [2021-12-28 02:57:11,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082844944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:57:11,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:57:11,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 02:57:11,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153596350] [2021-12-28 02:57:11,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:57:11,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 02:57:11,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:57:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 02:57:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 02:57:11,728 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 110 [2021-12-28 02:57:11,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 201 flow. Second operand has 9 states, 9 states have (on average 63.111111111111114) internal successors, (568), 9 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:11,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:57:11,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 110 [2021-12-28 02:57:11,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:57:12,078 INFO L129 PetriNetUnfolder]: 41/308 cut-off events. [2021-12-28 02:57:12,082 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-28 02:57:12,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 308 events. 41/308 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1426 event pairs, 10 based on Foata normal form. 96/401 useless extension candidates. Maximal degree in co-relation 370. Up to 29 conditions per place. [2021-12-28 02:57:12,085 INFO L132 encePairwiseOnDemand]: 91/110 looper letters, 28 selfloop transitions, 4 changer transitions 38/120 dead transitions. [2021-12-28 02:57:12,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 120 transitions, 375 flow [2021-12-28 02:57:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 02:57:12,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-28 02:57:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 948 transitions. [2021-12-28 02:57:12,108 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2021-12-28 02:57:12,108 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 948 transitions. [2021-12-28 02:57:12,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 948 transitions. [2021-12-28 02:57:12,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:57:12,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 948 transitions. [2021-12-28 02:57:12,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 67.71428571428571) internal successors, (948), 14 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 110.0) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,133 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 110.0) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,134 INFO L186 Difference]: Start difference. First operand has 94 places, 99 transitions, 201 flow. Second operand 14 states and 948 transitions. [2021-12-28 02:57:12,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 120 transitions, 375 flow [2021-12-28 02:57:12,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 120 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 02:57:12,141 INFO L242 Difference]: Finished difference. Result has 112 places, 82 transitions, 190 flow [2021-12-28 02:57:12,142 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=190, PETRI_PLACES=112, PETRI_TRANSITIONS=82} [2021-12-28 02:57:12,145 INFO L334 CegarLoopForPetriNet]: 94 programPoint places, 18 predicate places. [2021-12-28 02:57:12,146 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 82 transitions, 190 flow [2021-12-28 02:57:12,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 63.111111111111114) internal successors, (568), 9 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,146 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:57:12,147 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:57:12,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 02:57:12,147 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:57:12,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:57:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2129046964, now seen corresponding path program 1 times [2021-12-28 02:57:12,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:57:12,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196234898] [2021-12-28 02:57:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:57:12,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:57:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:57:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:57:12,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:57:12,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196234898] [2021-12-28 02:57:12,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196234898] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:57:12,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:57:12,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 02:57:12,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353033320] [2021-12-28 02:57:12,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:57:12,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 02:57:12,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:57:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 02:57:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 02:57:12,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2021-12-28 02:57:12,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 82 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:57:12,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2021-12-28 02:57:12,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:57:12,405 INFO L129 PetriNetUnfolder]: 0/86 cut-off events. [2021-12-28 02:57:12,405 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-12-28 02:57:12,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 86 events. 0/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 7/93 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-12-28 02:57:12,407 INFO L132 encePairwiseOnDemand]: 105/110 looper letters, 16 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2021-12-28 02:57:12,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 82 transitions, 232 flow [2021-12-28 02:57:12,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 02:57:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 02:57:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2021-12-28 02:57:12,410 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7327272727272728 [2021-12-28 02:57:12,410 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 403 transitions. [2021-12-28 02:57:12,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 403 transitions. [2021-12-28 02:57:12,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:57:12,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 403 transitions. [2021-12-28 02:57:12,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.6) internal successors, (403), 5 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,428 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,429 INFO L186 Difference]: Start difference. First operand has 112 places, 82 transitions, 190 flow. Second operand 5 states and 403 transitions. [2021-12-28 02:57:12,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 82 transitions, 232 flow [2021-12-28 02:57:12,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 82 transitions, 212 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-12-28 02:57:12,433 INFO L242 Difference]: Finished difference. Result has 90 places, 82 transitions, 180 flow [2021-12-28 02:57:12,433 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2021-12-28 02:57:12,434 INFO L334 CegarLoopForPetriNet]: 94 programPoint places, -4 predicate places. [2021-12-28 02:57:12,434 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 180 flow [2021-12-28 02:57:12,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,435 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 02:57:12,435 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 02:57:12,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 02:57:12,436 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-12-28 02:57:12,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 02:57:12,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1261698595, now seen corresponding path program 1 times [2021-12-28 02:57:12,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 02:57:12,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699698615] [2021-12-28 02:57:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 02:57:12,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 02:57:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 02:57:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 02:57:12,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 02:57:12,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699698615] [2021-12-28 02:57:12,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699698615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 02:57:12,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 02:57:12,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-28 02:57:12,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978018937] [2021-12-28 02:57:12,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 02:57:12,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-28 02:57:12,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 02:57:12,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-28 02:57:12,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-12-28 02:57:12,833 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 110 [2021-12-28 02:57:12,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 180 flow. Second operand has 17 states, 17 states have (on average 54.35294117647059) internal successors, (924), 17 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:12,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 02:57:12,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 110 [2021-12-28 02:57:12,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 02:57:13,412 INFO L129 PetriNetUnfolder]: 0/84 cut-off events. [2021-12-28 02:57:13,412 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-28 02:57:13,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-12-28 02:57:13,413 INFO L132 encePairwiseOnDemand]: 90/110 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2021-12-28 02:57:13,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 80 transitions, 254 flow [2021-12-28 02:57:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-28 02:57:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-28 02:57:13,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1132 transitions. [2021-12-28 02:57:13,417 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.49004329004329006 [2021-12-28 02:57:13,417 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1132 transitions. [2021-12-28 02:57:13,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1132 transitions. [2021-12-28 02:57:13,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 02:57:13,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1132 transitions. [2021-12-28 02:57:13,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 53.904761904761905) internal successors, (1132), 21 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:13,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 110.0) internal successors, (2420), 22 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:13,425 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 110.0) internal successors, (2420), 22 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:13,426 INFO L186 Difference]: Start difference. First operand has 90 places, 82 transitions, 180 flow. Second operand 21 states and 1132 transitions. [2021-12-28 02:57:13,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 80 transitions, 254 flow [2021-12-28 02:57:13,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-28 02:57:13,428 INFO L242 Difference]: Finished difference. Result has 105 places, 0 transitions, 0 flow [2021-12-28 02:57:13,428 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=0, PETRI_PLACES=105, PETRI_TRANSITIONS=0} [2021-12-28 02:57:13,429 INFO L334 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2021-12-28 02:57:13,429 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 0 transitions, 0 flow [2021-12-28 02:57:13,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 54.35294117647059) internal successors, (924), 17 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 02:57:13,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-28 02:57:13,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2021-12-28 02:57:13,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 02:57:13,435 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-28 02:57:13,437 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-28 02:57:13,437 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 02:57:13,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 02:57:13 BasicIcfg [2021-12-28 02:57:13,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 02:57:13,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 02:57:13,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 02:57:13,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 02:57:13,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 02:57:11" (3/4) ... [2021-12-28 02:57:13,444 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 02:57:13,449 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-28 02:57:13,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-28 02:57:13,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-28 02:57:13,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 02:57:13,453 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 02:57:13,483 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 02:57:13,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 02:57:13,484 INFO L158 Benchmark]: Toolchain (without parser) took 3377.69ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 42.1MB in the beginning and 39.1MB in the end (delta: 3.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2021-12-28 02:57:13,484 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 02:57:13,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.89ms. Allocated memory is still 62.9MB. Free memory was 41.9MB in the beginning and 36.8MB in the end (delta: 5.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 02:57:13,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.34ms. Allocated memory is still 62.9MB. Free memory was 36.8MB in the beginning and 34.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 02:57:13,485 INFO L158 Benchmark]: Boogie Preprocessor took 22.91ms. Allocated memory is still 62.9MB. Free memory was 34.7MB in the beginning and 33.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 02:57:13,485 INFO L158 Benchmark]: RCFGBuilder took 468.06ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 33.3MB in the beginning and 51.7MB in the end (delta: -18.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 02:57:13,486 INFO L158 Benchmark]: TraceAbstraction took 2360.45ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 51.0MB in the beginning and 42.4MB in the end (delta: 8.6MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2021-12-28 02:57:13,486 INFO L158 Benchmark]: Witness Printer took 41.98ms. Allocated memory is still 96.5MB. Free memory was 42.1MB in the beginning and 39.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 02:57:13,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.89ms. Allocated memory is still 62.9MB. Free memory was 41.9MB in the beginning and 36.8MB in the end (delta: 5.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.34ms. Allocated memory is still 62.9MB. Free memory was 36.8MB in the beginning and 34.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.91ms. Allocated memory is still 62.9MB. Free memory was 34.7MB in the beginning and 33.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 468.06ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 33.3MB in the beginning and 51.7MB in the end (delta: -18.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2360.45ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 51.0MB in the beginning and 42.4MB in the end (delta: 8.6MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Witness Printer took 41.98ms. Allocated memory is still 96.5MB. Free memory was 42.1MB in the beginning and 39.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 691]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 131 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 355 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 385 IncrementalHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 57 mSDtfsCounter, 385 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-28 02:57:13,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE