./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 02:59:27,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 02:59:27,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 02:59:27,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 02:59:27,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 02:59:27,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 02:59:27,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 02:59:27,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 02:59:27,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 02:59:27,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 02:59:27,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 02:59:27,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 02:59:27,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 02:59:27,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 02:59:27,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 02:59:27,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 02:59:27,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 02:59:27,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 02:59:27,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 02:59:27,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 02:59:27,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 02:59:27,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 02:59:27,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 02:59:27,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 02:59:27,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 02:59:27,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 02:59:27,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 02:59:27,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 02:59:27,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 02:59:27,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 02:59:27,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 02:59:27,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 02:59:27,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 02:59:27,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 02:59:27,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 02:59:27,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 02:59:27,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 02:59:27,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 02:59:27,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 02:59:27,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 02:59:27,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 02:59:27,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 02:59:27,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 02:59:27,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 02:59:27,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 02:59:27,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 02:59:27,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 02:59:27,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 02:59:27,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 02:59:27,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 02:59:27,847 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 02:59:27,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 02:59:27,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 02:59:27,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 02:59:27,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 02:59:27,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 02:59:27,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 02:59:27,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 02:59:27,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 02:59:27,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 02:59:27,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 02:59:27,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 02:59:27,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 02:59:27,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 02:59:27,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 02:59:27,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 02:59:27,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:59:27,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 02:59:27,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 02:59:27,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 02:59:27,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 02:59:27,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 02:59:27,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 02:59:27,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 02:59:27,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 02:59:27,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 02:59:27,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2021-12-16 02:59:28,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 02:59:28,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 02:59:28,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 02:59:28,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 02:59:28,131 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 02:59:28,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2021-12-16 02:59:28,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0464f0bc/a8ee758a7a98422099766cc093ea20b1/FLAG54fbd810c [2021-12-16 02:59:28,673 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 02:59:28,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2021-12-16 02:59:28,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0464f0bc/a8ee758a7a98422099766cc093ea20b1/FLAG54fbd810c [2021-12-16 02:59:29,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0464f0bc/a8ee758a7a98422099766cc093ea20b1 [2021-12-16 02:59:29,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 02:59:29,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 02:59:29,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 02:59:29,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 02:59:29,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 02:59:29,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b43fe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29, skipping insertion in model container [2021-12-16 02:59:29,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 02:59:29,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 02:59:29,377 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2021-12-16 02:59:29,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:59:29,542 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 02:59:29,554 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2021-12-16 02:59:29,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 02:59:29,620 INFO L208 MainTranslator]: Completed translation [2021-12-16 02:59:29,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29 WrapperNode [2021-12-16 02:59:29,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 02:59:29,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 02:59:29,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 02:59:29,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 02:59:29,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,663 INFO L137 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 139 [2021-12-16 02:59:29,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 02:59:29,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 02:59:29,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 02:59:29,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 02:59:29,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 02:59:29,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 02:59:29,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 02:59:29,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 02:59:29,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (1/1) ... [2021-12-16 02:59:29,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 02:59:29,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 02:59:29,757 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) [2021-12-16 02:59:29,780 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 [2021-12-16 02:59:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 02:59:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-16 02:59:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 02:59:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 02:59:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-16 02:59:29,797 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-16 02:59:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 02:59:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 02:59:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 02:59:29,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 02:59:29,799 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-16 02:59:29,917 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 02:59:29,919 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 02:59:30,186 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 02:59:30,194 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 02:59:30,194 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 02:59:30,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:59:30 BoogieIcfgContainer [2021-12-16 02:59:30,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 02:59:30,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 02:59:30,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 02:59:30,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 02:59:30,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:59:29" (1/3) ... [2021-12-16 02:59:30,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ccdda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:59:30, skipping insertion in model container [2021-12-16 02:59:30,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:59:29" (2/3) ... [2021-12-16 02:59:30,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ccdda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:59:30, skipping insertion in model container [2021-12-16 02:59:30,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:59:30" (3/3) ... [2021-12-16 02:59:30,214 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2021-12-16 02:59:30,218 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 02:59:30,218 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 02:59:30,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-16 02:59:30,218 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 02:59:30,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,252 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,253 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,259 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,260 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,275 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,276 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,277 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,278 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,279 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,280 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,281 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,282 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,283 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,284 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,285 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,286 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,287 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,288 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,289 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,290 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,291 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,292 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,293 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,294 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,295 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,296 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,297 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,298 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,299 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,300 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,301 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,302 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,303 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,309 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,310 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~y~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~z~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,311 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,312 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,313 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,314 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,315 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 02:59:30,318 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-16 02:59:30,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 02:59:30,385 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 [2021-12-16 02:59:30,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-16 02:59:30,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 178 places, 183 transitions, 371 flow [2021-12-16 02:59:30,451 INFO L129 PetriNetUnfolder]: 8/186 cut-off events. [2021-12-16 02:59:30,452 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-16 02:59:30,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 186 events. 8/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 163 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 136. Up to 2 conditions per place. [2021-12-16 02:59:30,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 183 transitions, 371 flow [2021-12-16 02:59:30,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 181 transitions, 365 flow [2021-12-16 02:59:30,483 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-12-16 02:59:30,483 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-16 02:59:30,486 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:30,487 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] [2021-12-16 02:59:30,487 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:30,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash -930805020, now seen corresponding path program 1 times [2021-12-16 02:59:30,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:30,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068864378] [2021-12-16 02:59:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:30,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:30,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:30,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068864378] [2021-12-16 02:59:30,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068864378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:30,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:30,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:59:30,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316220337] [2021-12-16 02:59:30,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:30,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:30,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:30,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:31,003 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2021-12-16 02:59:31,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 181 transitions, 365 flow. Second operand has 8 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 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) [2021-12-16 02:59:31,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:31,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2021-12-16 02:59:31,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:31,510 INFO L129 PetriNetUnfolder]: 95/1143 cut-off events. [2021-12-16 02:59:31,510 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-16 02:59:31,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 1143 events. 95/1143 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7387 event pairs, 25 based on Foata normal form. 93/1163 useless extension candidates. Maximal degree in co-relation 1332. Up to 89 conditions per place. [2021-12-16 02:59:31,521 INFO L132 encePairwiseOnDemand]: 161/183 looper letters, 52 selfloop transitions, 38 changer transitions 11/239 dead transitions. [2021-12-16 02:59:31,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 239 transitions, 673 flow [2021-12-16 02:59:31,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-16 02:59:31,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-12-16 02:59:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2885 transitions. [2021-12-16 02:59:31,543 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8297382801265458 [2021-12-16 02:59:31,543 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2885 transitions. [2021-12-16 02:59:31,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2885 transitions. [2021-12-16 02:59:31,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:31,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2885 transitions. [2021-12-16 02:59:31,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 151.8421052631579) internal successors, (2885), 19 states have internal predecessors, (2885), 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) [2021-12-16 02:59:31,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 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) [2021-12-16 02:59:31,576 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 183.0) internal successors, (3660), 20 states have internal predecessors, (3660), 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) [2021-12-16 02:59:31,578 INFO L186 Difference]: Start difference. First operand has 177 places, 181 transitions, 365 flow. Second operand 19 states and 2885 transitions. [2021-12-16 02:59:31,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 239 transitions, 673 flow [2021-12-16 02:59:31,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 239 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 02:59:31,588 INFO L242 Difference]: Finished difference. Result has 196 places, 197 transitions, 514 flow [2021-12-16 02:59:31,590 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=514, PETRI_PLACES=196, PETRI_TRANSITIONS=197} [2021-12-16 02:59:31,593 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 19 predicate places. [2021-12-16 02:59:31,593 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 514 flow [2021-12-16 02:59:31,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 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) [2021-12-16 02:59:31,595 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:31,595 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] [2021-12-16 02:59:31,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 02:59:31,596 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:31,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:31,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1816353862, now seen corresponding path program 1 times [2021-12-16 02:59:31,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:31,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072306211] [2021-12-16 02:59:31,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:31,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:31,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:31,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072306211] [2021-12-16 02:59:31,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072306211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:31,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:31,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 02:59:31,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279653841] [2021-12-16 02:59:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:31,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 02:59:31,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 02:59:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 02:59:31,769 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 183 [2021-12-16 02:59:31,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 197 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 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) [2021-12-16 02:59:31,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:31,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 183 [2021-12-16 02:59:31,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:31,918 INFO L129 PetriNetUnfolder]: 19/584 cut-off events. [2021-12-16 02:59:31,918 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-12-16 02:59:31,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 584 events. 19/584 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2345 event pairs, 6 based on Foata normal form. 8/573 useless extension candidates. Maximal degree in co-relation 735. Up to 36 conditions per place. [2021-12-16 02:59:31,921 INFO L132 encePairwiseOnDemand]: 175/183 looper letters, 24 selfloop transitions, 8 changer transitions 0/180 dead transitions. [2021-12-16 02:59:31,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 180 transitions, 487 flow [2021-12-16 02:59:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 02:59:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 02:59:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2021-12-16 02:59:31,923 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2021-12-16 02:59:31,923 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 765 transitions. [2021-12-16 02:59:31,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 765 transitions. [2021-12-16 02:59:31,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:31,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 765 transitions. [2021-12-16 02:59:31,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 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) [2021-12-16 02:59:31,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 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) [2021-12-16 02:59:31,928 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 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) [2021-12-16 02:59:31,928 INFO L186 Difference]: Start difference. First operand has 196 places, 197 transitions, 514 flow. Second operand 5 states and 765 transitions. [2021-12-16 02:59:31,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 180 transitions, 487 flow [2021-12-16 02:59:31,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 180 transitions, 479 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-12-16 02:59:31,934 INFO L242 Difference]: Finished difference. Result has 183 places, 174 transitions, 427 flow [2021-12-16 02:59:31,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=183, PETRI_TRANSITIONS=174} [2021-12-16 02:59:31,935 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 6 predicate places. [2021-12-16 02:59:31,935 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 174 transitions, 427 flow [2021-12-16 02:59:31,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 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) [2021-12-16 02:59:31,936 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:31,936 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] [2021-12-16 02:59:31,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 02:59:31,937 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:31,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash 621951114, now seen corresponding path program 1 times [2021-12-16 02:59:31,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:31,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256477924] [2021-12-16 02:59:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:31,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:32,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:32,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256477924] [2021-12-16 02:59:32,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256477924] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:32,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:32,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:59:32,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441932293] [2021-12-16 02:59:32,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:32,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:32,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:32,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:32,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 183 [2021-12-16 02:59:32,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 174 transitions, 427 flow. Second operand has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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) [2021-12-16 02:59:32,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:32,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 183 [2021-12-16 02:59:32,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:32,231 INFO L129 PetriNetUnfolder]: 9/473 cut-off events. [2021-12-16 02:59:32,246 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-12-16 02:59:32,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 473 events. 9/473 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1489 event pairs, 0 based on Foata normal form. 1/456 useless extension candidates. Maximal degree in co-relation 604. Up to 58 conditions per place. [2021-12-16 02:59:32,248 INFO L132 encePairwiseOnDemand]: 169/183 looper letters, 29 selfloop transitions, 15 changer transitions 2/183 dead transitions. [2021-12-16 02:59:32,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 183 transitions, 533 flow [2021-12-16 02:59:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 02:59:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-16 02:59:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1495 transitions. [2021-12-16 02:59:32,252 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8169398907103825 [2021-12-16 02:59:32,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1495 transitions. [2021-12-16 02:59:32,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1495 transitions. [2021-12-16 02:59:32,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:32,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1495 transitions. [2021-12-16 02:59:32,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 149.5) internal successors, (1495), 10 states have internal predecessors, (1495), 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) [2021-12-16 02:59:32,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 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) [2021-12-16 02:59:32,261 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 183.0) internal successors, (2013), 11 states have internal predecessors, (2013), 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) [2021-12-16 02:59:32,261 INFO L186 Difference]: Start difference. First operand has 183 places, 174 transitions, 427 flow. Second operand 10 states and 1495 transitions. [2021-12-16 02:59:32,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 183 transitions, 533 flow [2021-12-16 02:59:32,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 183 transitions, 530 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-16 02:59:32,268 INFO L242 Difference]: Finished difference. Result has 192 places, 174 transitions, 468 flow [2021-12-16 02:59:32,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=468, PETRI_PLACES=192, PETRI_TRANSITIONS=174} [2021-12-16 02:59:32,270 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 15 predicate places. [2021-12-16 02:59:32,270 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 174 transitions, 468 flow [2021-12-16 02:59:32,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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) [2021-12-16 02:59:32,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:32,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:32,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 02:59:32,272 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash 280756634, now seen corresponding path program 1 times [2021-12-16 02:59:32,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:32,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025616911] [2021-12-16 02:59:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:32,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:32,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:32,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025616911] [2021-12-16 02:59:32,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025616911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:32,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:32,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 02:59:32,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228969881] [2021-12-16 02:59:32,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:32,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 02:59:32,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:32,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 02:59:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-16 02:59:32,460 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 183 [2021-12-16 02:59:32,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 174 transitions, 468 flow. Second operand has 13 states, 13 states have (on average 132.15384615384616) internal successors, (1718), 13 states have internal predecessors, (1718), 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) [2021-12-16 02:59:32,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:32,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 183 [2021-12-16 02:59:32,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:32,898 INFO L129 PetriNetUnfolder]: 42/496 cut-off events. [2021-12-16 02:59:32,898 INFO L130 PetriNetUnfolder]: For 75/75 co-relation queries the response was YES. [2021-12-16 02:59:32,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 496 events. 42/496 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1747 event pairs, 0 based on Foata normal form. 1/487 useless extension candidates. Maximal degree in co-relation 739. Up to 38 conditions per place. [2021-12-16 02:59:32,912 INFO L132 encePairwiseOnDemand]: 164/183 looper letters, 70 selfloop transitions, 25 changer transitions 0/218 dead transitions. [2021-12-16 02:59:32,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 218 transitions, 782 flow [2021-12-16 02:59:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 02:59:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-16 02:59:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2306 transitions. [2021-12-16 02:59:32,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7412407585985213 [2021-12-16 02:59:32,921 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2306 transitions. [2021-12-16 02:59:32,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2306 transitions. [2021-12-16 02:59:32,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:32,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2306 transitions. [2021-12-16 02:59:32,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.64705882352942) internal successors, (2306), 17 states have internal predecessors, (2306), 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) [2021-12-16 02:59:32,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 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) [2021-12-16 02:59:32,933 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 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) [2021-12-16 02:59:32,933 INFO L186 Difference]: Start difference. First operand has 192 places, 174 transitions, 468 flow. Second operand 17 states and 2306 transitions. [2021-12-16 02:59:32,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 218 transitions, 782 flow [2021-12-16 02:59:32,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 218 transitions, 757 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-16 02:59:32,939 INFO L242 Difference]: Finished difference. Result has 207 places, 183 transitions, 576 flow [2021-12-16 02:59:32,939 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=576, PETRI_PLACES=207, PETRI_TRANSITIONS=183} [2021-12-16 02:59:32,940 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 30 predicate places. [2021-12-16 02:59:32,940 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 183 transitions, 576 flow [2021-12-16 02:59:32,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 132.15384615384616) internal successors, (1718), 13 states have internal predecessors, (1718), 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) [2021-12-16 02:59:32,941 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:32,941 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, 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] [2021-12-16 02:59:32,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 02:59:32,942 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:32,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1867276529, now seen corresponding path program 1 times [2021-12-16 02:59:32,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:32,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209943613] [2021-12-16 02:59:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:32,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:33,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:33,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209943613] [2021-12-16 02:59:33,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209943613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:33,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:33,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:59:33,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946736986] [2021-12-16 02:59:33,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:33,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:33,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:33,024 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-16 02:59:33,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 183 transitions, 576 flow. Second operand has 8 states, 8 states have (on average 142.375) internal successors, (1139), 8 states have internal predecessors, (1139), 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) [2021-12-16 02:59:33,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:33,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-16 02:59:33,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:33,206 INFO L129 PetriNetUnfolder]: 12/462 cut-off events. [2021-12-16 02:59:33,207 INFO L130 PetriNetUnfolder]: For 147/147 co-relation queries the response was YES. [2021-12-16 02:59:33,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 462 events. 12/462 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1429 event pairs, 0 based on Foata normal form. 2/454 useless extension candidates. Maximal degree in co-relation 699. Up to 32 conditions per place. [2021-12-16 02:59:33,209 INFO L132 encePairwiseOnDemand]: 171/183 looper letters, 48 selfloop transitions, 18 changer transitions 0/198 dead transitions. [2021-12-16 02:59:33,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 198 transitions, 740 flow [2021-12-16 02:59:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 02:59:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-16 02:59:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1607 transitions. [2021-12-16 02:59:33,214 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7983109786388475 [2021-12-16 02:59:33,214 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1607 transitions. [2021-12-16 02:59:33,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1607 transitions. [2021-12-16 02:59:33,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:33,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1607 transitions. [2021-12-16 02:59:33,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 146.0909090909091) internal successors, (1607), 11 states have internal predecessors, (1607), 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) [2021-12-16 02:59:33,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 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) [2021-12-16 02:59:33,222 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 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) [2021-12-16 02:59:33,222 INFO L186 Difference]: Start difference. First operand has 207 places, 183 transitions, 576 flow. Second operand 11 states and 1607 transitions. [2021-12-16 02:59:33,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 198 transitions, 740 flow [2021-12-16 02:59:33,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 198 transitions, 714 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-12-16 02:59:33,228 INFO L242 Difference]: Finished difference. Result has 207 places, 181 transitions, 578 flow [2021-12-16 02:59:33,228 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=578, PETRI_PLACES=207, PETRI_TRANSITIONS=181} [2021-12-16 02:59:33,229 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 30 predicate places. [2021-12-16 02:59:33,229 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 181 transitions, 578 flow [2021-12-16 02:59:33,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 142.375) internal successors, (1139), 8 states have internal predecessors, (1139), 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) [2021-12-16 02:59:33,230 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:33,231 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, 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] [2021-12-16 02:59:33,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 02:59:33,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:33,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:33,232 INFO L85 PathProgramCache]: Analyzing trace with hash -590826818, now seen corresponding path program 1 times [2021-12-16 02:59:33,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:33,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338477993] [2021-12-16 02:59:33,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:33,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:33,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:33,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338477993] [2021-12-16 02:59:33,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338477993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:33,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:33,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 02:59:33,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967801505] [2021-12-16 02:59:33,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:33,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 02:59:33,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 02:59:33,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-16 02:59:33,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 183 [2021-12-16 02:59:33,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 181 transitions, 578 flow. Second operand has 13 states, 13 states have (on average 136.46153846153845) internal successors, (1774), 13 states have internal predecessors, (1774), 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) [2021-12-16 02:59:33,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:33,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 183 [2021-12-16 02:59:33,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:33,741 INFO L129 PetriNetUnfolder]: 36/545 cut-off events. [2021-12-16 02:59:33,742 INFO L130 PetriNetUnfolder]: For 221/221 co-relation queries the response was YES. [2021-12-16 02:59:33,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 545 events. 36/545 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2014 event pairs, 13 based on Foata normal form. 1/537 useless extension candidates. Maximal degree in co-relation 906. Up to 85 conditions per place. [2021-12-16 02:59:33,745 INFO L132 encePairwiseOnDemand]: 165/183 looper letters, 38 selfloop transitions, 10 changer transitions 26/200 dead transitions. [2021-12-16 02:59:33,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 200 transitions, 762 flow [2021-12-16 02:59:33,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 02:59:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-16 02:59:33,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2210 transitions. [2021-12-16 02:59:33,750 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7547814207650273 [2021-12-16 02:59:33,750 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2210 transitions. [2021-12-16 02:59:33,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2210 transitions. [2021-12-16 02:59:33,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:33,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2210 transitions. [2021-12-16 02:59:33,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 138.125) internal successors, (2210), 16 states have internal predecessors, (2210), 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) [2021-12-16 02:59:33,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 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) [2021-12-16 02:59:33,762 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 183.0) internal successors, (3111), 17 states have internal predecessors, (3111), 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) [2021-12-16 02:59:33,762 INFO L186 Difference]: Start difference. First operand has 207 places, 181 transitions, 578 flow. Second operand 16 states and 2210 transitions. [2021-12-16 02:59:33,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 200 transitions, 762 flow [2021-12-16 02:59:33,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 200 transitions, 704 flow, removed 9 selfloop flow, removed 11 redundant places. [2021-12-16 02:59:33,769 INFO L242 Difference]: Finished difference. Result has 221 places, 170 transitions, 497 flow [2021-12-16 02:59:33,769 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=497, PETRI_PLACES=221, PETRI_TRANSITIONS=170} [2021-12-16 02:59:33,771 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 44 predicate places. [2021-12-16 02:59:33,771 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 170 transitions, 497 flow [2021-12-16 02:59:33,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.46153846153845) internal successors, (1774), 13 states have internal predecessors, (1774), 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) [2021-12-16 02:59:33,773 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:33,773 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, 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] [2021-12-16 02:59:33,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 02:59:33,777 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:33,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:33,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2141442280, now seen corresponding path program 1 times [2021-12-16 02:59:33,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:33,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803334834] [2021-12-16 02:59:33,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:33,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:33,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:33,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803334834] [2021-12-16 02:59:33,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803334834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:33,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:33,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:59:33,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431883557] [2021-12-16 02:59:33,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:33,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:33,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:33,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:33,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:33,935 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-16 02:59:33,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 170 transitions, 497 flow. Second operand has 8 states, 8 states have (on average 143.125) internal successors, (1145), 8 states have internal predecessors, (1145), 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) [2021-12-16 02:59:33,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:33,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-16 02:59:33,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:34,048 INFO L129 PetriNetUnfolder]: 15/339 cut-off events. [2021-12-16 02:59:34,048 INFO L130 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2021-12-16 02:59:34,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 339 events. 15/339 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 790 event pairs, 7 based on Foata normal form. 2/334 useless extension candidates. Maximal degree in co-relation 559. Up to 30 conditions per place. [2021-12-16 02:59:34,051 INFO L132 encePairwiseOnDemand]: 176/183 looper letters, 29 selfloop transitions, 7 changer transitions 5/170 dead transitions. [2021-12-16 02:59:34,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 170 transitions, 547 flow [2021-12-16 02:59:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 02:59:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 02:59:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2021-12-16 02:59:34,053 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7978142076502732 [2021-12-16 02:59:34,053 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 876 transitions. [2021-12-16 02:59:34,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 876 transitions. [2021-12-16 02:59:34,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:34,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 876 transitions. [2021-12-16 02:59:34,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 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) [2021-12-16 02:59:34,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 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) [2021-12-16 02:59:34,058 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 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) [2021-12-16 02:59:34,058 INFO L186 Difference]: Start difference. First operand has 221 places, 170 transitions, 497 flow. Second operand 6 states and 876 transitions. [2021-12-16 02:59:34,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 170 transitions, 547 flow [2021-12-16 02:59:34,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 170 transitions, 477 flow, removed 14 selfloop flow, removed 22 redundant places. [2021-12-16 02:59:34,062 INFO L242 Difference]: Finished difference. Result has 182 places, 161 transitions, 386 flow [2021-12-16 02:59:34,063 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=182, PETRI_TRANSITIONS=161} [2021-12-16 02:59:34,063 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 5 predicate places. [2021-12-16 02:59:34,063 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 161 transitions, 386 flow [2021-12-16 02:59:34,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 143.125) internal successors, (1145), 8 states have internal predecessors, (1145), 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) [2021-12-16 02:59:34,064 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:34,064 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, 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] [2021-12-16 02:59:34,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 02:59:34,065 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash -645913404, now seen corresponding path program 1 times [2021-12-16 02:59:34,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:34,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126371503] [2021-12-16 02:59:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:34,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:34,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:34,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126371503] [2021-12-16 02:59:34,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126371503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:34,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:34,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:59:34,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934393828] [2021-12-16 02:59:34,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:34,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:34,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:34,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:34,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:34,168 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-16 02:59:34,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 161 transitions, 386 flow. Second operand has 8 states, 8 states have (on average 142.875) internal successors, (1143), 8 states have internal predecessors, (1143), 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) [2021-12-16 02:59:34,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:34,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-16 02:59:34,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:34,320 INFO L129 PetriNetUnfolder]: 12/360 cut-off events. [2021-12-16 02:59:34,320 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-12-16 02:59:34,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 360 events. 12/360 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 839 event pairs, 0 based on Foata normal form. 2/352 useless extension candidates. Maximal degree in co-relation 456. Up to 21 conditions per place. [2021-12-16 02:59:34,322 INFO L132 encePairwiseOnDemand]: 172/183 looper letters, 24 selfloop transitions, 10 changer transitions 0/165 dead transitions. [2021-12-16 02:59:34,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 165 transitions, 462 flow [2021-12-16 02:59:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 02:59:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-16 02:59:34,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1295 transitions. [2021-12-16 02:59:34,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7862780813600486 [2021-12-16 02:59:34,325 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1295 transitions. [2021-12-16 02:59:34,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1295 transitions. [2021-12-16 02:59:34,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:34,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1295 transitions. [2021-12-16 02:59:34,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 143.88888888888889) internal successors, (1295), 9 states have internal predecessors, (1295), 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) [2021-12-16 02:59:34,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 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) [2021-12-16 02:59:34,332 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 183.0) internal successors, (1830), 10 states have internal predecessors, (1830), 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) [2021-12-16 02:59:34,332 INFO L186 Difference]: Start difference. First operand has 182 places, 161 transitions, 386 flow. Second operand 9 states and 1295 transitions. [2021-12-16 02:59:34,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 165 transitions, 462 flow [2021-12-16 02:59:34,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 165 transitions, 428 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-12-16 02:59:34,336 INFO L242 Difference]: Finished difference. Result has 174 places, 159 transitions, 368 flow [2021-12-16 02:59:34,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=368, PETRI_PLACES=174, PETRI_TRANSITIONS=159} [2021-12-16 02:59:34,337 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -3 predicate places. [2021-12-16 02:59:34,337 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 159 transitions, 368 flow [2021-12-16 02:59:34,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 142.875) internal successors, (1143), 8 states have internal predecessors, (1143), 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) [2021-12-16 02:59:34,338 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:34,338 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, 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] [2021-12-16 02:59:34,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 02:59:34,339 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash 194878886, now seen corresponding path program 1 times [2021-12-16 02:59:34,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:34,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998506162] [2021-12-16 02:59:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:34,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:34,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:34,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998506162] [2021-12-16 02:59:34,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998506162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:34,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:34,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 02:59:34,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639824359] [2021-12-16 02:59:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:34,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 02:59:34,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 02:59:34,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-12-16 02:59:34,443 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 183 [2021-12-16 02:59:34,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 159 transitions, 368 flow. Second operand has 11 states, 11 states have (on average 138.9090909090909) internal successors, (1528), 11 states have internal predecessors, (1528), 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) [2021-12-16 02:59:34,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:34,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 183 [2021-12-16 02:59:34,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:34,760 INFO L129 PetriNetUnfolder]: 29/348 cut-off events. [2021-12-16 02:59:34,760 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-12-16 02:59:34,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 348 events. 29/348 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 902 event pairs, 12 based on Foata normal form. 4/345 useless extension candidates. Maximal degree in co-relation 484. Up to 44 conditions per place. [2021-12-16 02:59:34,761 INFO L132 encePairwiseOnDemand]: 167/183 looper letters, 21 selfloop transitions, 14 changer transitions 20/178 dead transitions. [2021-12-16 02:59:34,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 178 transitions, 518 flow [2021-12-16 02:59:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 02:59:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-16 02:59:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2366 transitions. [2021-12-16 02:59:34,768 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7605271616843459 [2021-12-16 02:59:34,768 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2366 transitions. [2021-12-16 02:59:34,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2366 transitions. [2021-12-16 02:59:34,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:34,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2366 transitions. [2021-12-16 02:59:34,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.1764705882353) internal successors, (2366), 17 states have internal predecessors, (2366), 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) [2021-12-16 02:59:34,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 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) [2021-12-16 02:59:34,780 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 183.0) internal successors, (3294), 18 states have internal predecessors, (3294), 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) [2021-12-16 02:59:34,780 INFO L186 Difference]: Start difference. First operand has 174 places, 159 transitions, 368 flow. Second operand 17 states and 2366 transitions. [2021-12-16 02:59:34,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 178 transitions, 518 flow [2021-12-16 02:59:34,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 178 transitions, 490 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-16 02:59:34,785 INFO L242 Difference]: Finished difference. Result has 189 places, 158 transitions, 388 flow [2021-12-16 02:59:34,785 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=388, PETRI_PLACES=189, PETRI_TRANSITIONS=158} [2021-12-16 02:59:34,786 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, 12 predicate places. [2021-12-16 02:59:34,786 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 158 transitions, 388 flow [2021-12-16 02:59:34,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 138.9090909090909) internal successors, (1528), 11 states have internal predecessors, (1528), 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) [2021-12-16 02:59:34,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 02:59:34,787 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, 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] [2021-12-16 02:59:34,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 02:59:34,787 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 02:59:34,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 02:59:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash 776535328, now seen corresponding path program 1 times [2021-12-16 02:59:34,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 02:59:34,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115100961] [2021-12-16 02:59:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 02:59:34,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 02:59:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 02:59:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 02:59:34,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 02:59:34,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115100961] [2021-12-16 02:59:34,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115100961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 02:59:34,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 02:59:34,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 02:59:34,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980468945] [2021-12-16 02:59:34,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 02:59:34,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 02:59:34,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 02:59:34,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 02:59:34,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-16 02:59:34,990 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 183 [2021-12-16 02:59:34,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 158 transitions, 388 flow. Second operand has 8 states, 8 states have (on average 143.75) internal successors, (1150), 8 states have internal predecessors, (1150), 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) [2021-12-16 02:59:34,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 02:59:34,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 183 [2021-12-16 02:59:34,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 02:59:35,075 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-12-16 02:59:35,075 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-12-16 02:59:35,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 177 events. 8/177 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 event pairs, 0 based on Foata normal form. 5/180 useless extension candidates. Maximal degree in co-relation 262. Up to 23 conditions per place. [2021-12-16 02:59:35,076 INFO L132 encePairwiseOnDemand]: 178/183 looper letters, 0 selfloop transitions, 0 changer transitions 147/147 dead transitions. [2021-12-16 02:59:35,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 147 transitions, 426 flow [2021-12-16 02:59:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 02:59:35,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 02:59:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 878 transitions. [2021-12-16 02:59:35,078 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7996357012750456 [2021-12-16 02:59:35,078 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 878 transitions. [2021-12-16 02:59:35,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 878 transitions. [2021-12-16 02:59:35,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 02:59:35,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 878 transitions. [2021-12-16 02:59:35,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.33333333333334) internal successors, (878), 6 states have internal predecessors, (878), 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) [2021-12-16 02:59:35,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 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) [2021-12-16 02:59:35,081 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 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) [2021-12-16 02:59:35,081 INFO L186 Difference]: Start difference. First operand has 189 places, 158 transitions, 388 flow. Second operand 6 states and 878 transitions. [2021-12-16 02:59:35,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 147 transitions, 426 flow [2021-12-16 02:59:35,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 147 transitions, 388 flow, removed 0 selfloop flow, removed 11 redundant places. [2021-12-16 02:59:35,084 INFO L242 Difference]: Finished difference. Result has 159 places, 0 transitions, 0 flow [2021-12-16 02:59:35,084 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=159, PETRI_TRANSITIONS=0} [2021-12-16 02:59:35,084 INFO L334 CegarLoopForPetriNet]: 177 programPoint places, -18 predicate places. [2021-12-16 02:59:35,085 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 0 transitions, 0 flow [2021-12-16 02:59:35,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 143.75) internal successors, (1150), 8 states have internal predecessors, (1150), 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) [2021-12-16 02:59:35,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 7 remaining) [2021-12-16 02:59:35,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-12-16 02:59:35,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-12-16 02:59:35,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-12-16 02:59:35,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-12-16 02:59:35,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-12-16 02:59:35,089 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-12-16 02:59:35,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 02:59:35,092 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 02:59:35,095 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-16 02:59:35,095 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 02:59:35,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:59:35 BasicIcfg [2021-12-16 02:59:35,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 02:59:35,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 02:59:35,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 02:59:35,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 02:59:35,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:59:30" (3/4) ... [2021-12-16 02:59:35,101 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 02:59:35,106 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-12-16 02:59:35,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-12-16 02:59:35,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 02:59:35,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 02:59:35,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 02:59:35,135 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 02:59:35,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 02:59:35,136 INFO L158 Benchmark]: Toolchain (without parser) took 5961.41ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 62.0MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,136 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory was 51.0MB in the beginning and 50.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 02:59:35,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.74ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 62.0MB in the beginning and 78.3MB in the end (delta: -16.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.72ms. Allocated memory is still 113.2MB. Free memory was 78.3MB in the beginning and 75.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,137 INFO L158 Benchmark]: Boogie Preprocessor took 49.44ms. Allocated memory is still 113.2MB. Free memory was 75.8MB in the beginning and 74.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,137 INFO L158 Benchmark]: RCFGBuilder took 481.61ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 59.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,137 INFO L158 Benchmark]: TraceAbstraction took 4900.96ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 58.5MB in the beginning and 62.0MB in the end (delta: -3.5MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,138 INFO L158 Benchmark]: Witness Printer took 36.78ms. Allocated memory is still 163.6MB. Free memory was 62.0MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 02:59:35,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory was 51.0MB in the beginning and 50.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.74ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 62.0MB in the beginning and 78.3MB in the end (delta: -16.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.72ms. Allocated memory is still 113.2MB. Free memory was 78.3MB in the beginning and 75.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.44ms. Allocated memory is still 113.2MB. Free memory was 75.8MB in the beginning and 74.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.61ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 59.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4900.96ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 58.5MB in the beginning and 62.0MB in the end (delta: -3.5MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Witness Printer took 36.78ms. Allocated memory is still 163.6MB. Free memory was 62.0MB in the beginning and 58.8MB in the end (delta: 3.1MB). 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 255 locations, 7 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: 4.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 929 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 929 mSDsluCounter, 1406 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1181 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1112 IncrementalHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 242 mSDtfsCounter, 1112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=578occurred in iteration=5, InterpolantAutomatonStates: 116, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1052 NumberOfCodeBlocks, 1052 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1042 ConstructedInterpolants, 0 QuantifiedInterpolants, 4815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-16 02:59:35,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE