./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c --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/weaver/unroll-cond-3.wvr.c -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 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:10:19,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:10:19,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:10:19,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:10:19,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:10:19,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:10:19,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:10:19,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:10:19,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:10:19,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:10:19,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:10:19,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:10:19,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:10:19,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:10:19,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:10:19,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:10:19,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:10:19,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:10:19,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:10:19,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:10:19,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:10:19,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:10:19,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:10:19,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:10:19,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:10:19,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:10:19,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:10:19,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:10:19,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:10:19,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:10:19,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:10:19,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:10:19,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:10:19,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:10:19,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:10:19,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:10:19,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:10:19,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:10:19,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:10:19,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:10:19,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:10:19,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 03:10:19,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:10:19,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:10:19,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:10:19,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:10:19,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:10:19,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:10:19,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:10:19,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:10:19,735 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:10:19,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:10:19,735 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:10:19,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 03:10:19,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:10:19,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:10:19,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:10:19,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:10:19,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:10:19,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:10:19,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:10:19,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:10:19,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:10:19,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:10:19,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:10:19,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:10:19,738 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:10:19,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:10:19,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:10:19,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:10:19,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e3bac7f28ae020b684175cea363a5866905518c289fbd40a07a7a3764acade [2021-12-16 03:10:19,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:10:19,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:10:19,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:10:19,966 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:10:19,967 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:10:19,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2021-12-16 03:10:20,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a4a5470/67ad909cf7814fa894efc2d1d055bfa3/FLAG396b7ddc9 [2021-12-16 03:10:20,409 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:10:20,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/unroll-cond-3.wvr.c [2021-12-16 03:10:20,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a4a5470/67ad909cf7814fa894efc2d1d055bfa3/FLAG396b7ddc9 [2021-12-16 03:10:20,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a4a5470/67ad909cf7814fa894efc2d1d055bfa3 [2021-12-16 03:10:20,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:10:20,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:10:20,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:10:20,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:10:20,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:10:20,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c05f21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20, skipping insertion in model container [2021-12-16 03:10:20,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:10:20,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:10:20,656 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/weaver/unroll-cond-3.wvr.c[2641,2654] [2021-12-16 03:10:20,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:10:20,678 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:10:20,708 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/weaver/unroll-cond-3.wvr.c[2641,2654] [2021-12-16 03:10:20,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:10:20,731 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:10:20,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20 WrapperNode [2021-12-16 03:10:20,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:10:20,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:10:20,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:10:20,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:10:20,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,779 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 162 [2021-12-16 03:10:20,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:10:20,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:10:20,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:10:20,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:10:20,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:10:20,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:10:20,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:10:20,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:10:20,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (1/1) ... [2021-12-16 03:10:20,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:10:20,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:10:20,852 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 03:10:20,863 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 03:10:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:10:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-16 03:10:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-16 03:10:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-16 03:10:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-16 03:10:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:10:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:10:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:10:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:10:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:10:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:10:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:10:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:10:20,896 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 03:10:21,007 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:10:21,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:10:21,250 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:10:21,258 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:10:21,261 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-16 03:10:21,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:10:21 BoogieIcfgContainer [2021-12-16 03:10:21,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:10:21,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:10:21,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:10:21,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:10:21,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:10:20" (1/3) ... [2021-12-16 03:10:21,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325a8a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:10:21, skipping insertion in model container [2021-12-16 03:10:21,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:10:20" (2/3) ... [2021-12-16 03:10:21,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325a8a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:10:21, skipping insertion in model container [2021-12-16 03:10:21,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:10:21" (3/3) ... [2021-12-16 03:10:21,273 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2021-12-16 03:10:21,277 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-16 03:10:21,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:10:21,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:10:21,277 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-16 03:10:21,306 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,306 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,306 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,307 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,307 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,307 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,307 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,307 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,307 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,308 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,313 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,314 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,314 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,314 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,314 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,314 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,314 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,315 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,315 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,315 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,315 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,315 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,316 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,316 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,316 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,316 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,316 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,316 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,317 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,317 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,317 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,317 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,317 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,317 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,320 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,320 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,320 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,320 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,320 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,321 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,322 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,322 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,322 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,322 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,322 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,322 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,323 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,323 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,323 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,324 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,324 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,324 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,324 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,324 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,324 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,325 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,325 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,325 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,325 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,325 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,325 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,326 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,346 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,346 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,346 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,346 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,346 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,350 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-16 03:10:21,362 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-16 03:10:21,410 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:10:21,417 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 03:10:21,417 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-16 03:10:21,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 198 places, 209 transitions, 434 flow [2021-12-16 03:10:21,499 INFO L129 PetriNetUnfolder]: 18/207 cut-off events. [2021-12-16 03:10:21,499 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-16 03:10:21,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 207 events. 18/207 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2021-12-16 03:10:21,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 209 transitions, 434 flow [2021-12-16 03:10:21,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 198 transitions, 408 flow [2021-12-16 03:10:21,559 INFO L129 PetriNetUnfolder]: 16/182 cut-off events. [2021-12-16 03:10:21,559 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-16 03:10:21,559 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:21,560 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] [2021-12-16 03:10:21,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:21,564 INFO L85 PathProgramCache]: Analyzing trace with hash -641401192, now seen corresponding path program 1 times [2021-12-16 03:10:21,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:21,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176625095] [2021-12-16 03:10:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:21,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:21,723 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 03:10:21,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:21,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176625095] [2021-12-16 03:10:21,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176625095] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:21,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:21,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 03:10:21,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073187688] [2021-12-16 03:10:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:21,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 03:10:21,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 03:10:21,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 03:10:21,757 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 209 [2021-12-16 03:10:21,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 198 transitions, 408 flow. Second operand has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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 03:10:21,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:21,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 209 [2021-12-16 03:10:21,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:21,821 INFO L129 PetriNetUnfolder]: 5/185 cut-off events. [2021-12-16 03:10:21,821 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-12-16 03:10:21,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 185 events. 5/185 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 16/186 useless extension candidates. Maximal degree in co-relation 104. Up to 5 conditions per place. [2021-12-16 03:10:21,823 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 4 selfloop transitions, 0 changer transitions 4/185 dead transitions. [2021-12-16 03:10:21,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 185 transitions, 390 flow [2021-12-16 03:10:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 03:10:21,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-16 03:10:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 399 transitions. [2021-12-16 03:10:21,834 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9545454545454546 [2021-12-16 03:10:21,835 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 399 transitions. [2021-12-16 03:10:21,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 399 transitions. [2021-12-16 03:10:21,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:21,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 399 transitions. [2021-12-16 03:10:21,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 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 03:10:21,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 03:10:21,849 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 03:10:21,850 INFO L186 Difference]: Start difference. First operand has 187 places, 198 transitions, 408 flow. Second operand 2 states and 399 transitions. [2021-12-16 03:10:21,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 185 transitions, 390 flow [2021-12-16 03:10:21,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 185 transitions, 382 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-16 03:10:21,858 INFO L242 Difference]: Finished difference. Result has 184 places, 181 transitions, 366 flow [2021-12-16 03:10:21,860 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=366, PETRI_PLACES=184, PETRI_TRANSITIONS=181} [2021-12-16 03:10:21,863 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -3 predicate places. [2021-12-16 03:10:21,864 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 181 transitions, 366 flow [2021-12-16 03:10:21,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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 03:10:21,864 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:21,865 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] [2021-12-16 03:10:21,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:10:21,865 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:21,866 INFO L85 PathProgramCache]: Analyzing trace with hash 317017016, now seen corresponding path program 1 times [2021-12-16 03:10:21,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:21,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406769208] [2021-12-16 03:10:21,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:21,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:22,167 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 03:10:22,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:22,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406769208] [2021-12-16 03:10:22,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406769208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:22,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:22,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:10:22,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94826602] [2021-12-16 03:10:22,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:22,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:10:22,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:10:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:10:22,173 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209 [2021-12-16 03:10:22,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 181 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 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 03:10:22,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:22,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209 [2021-12-16 03:10:22,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:22,314 INFO L129 PetriNetUnfolder]: 153/760 cut-off events. [2021-12-16 03:10:22,315 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-12-16 03:10:22,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 760 events. 153/760 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3814 event pairs, 34 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 1026. Up to 164 conditions per place. [2021-12-16 03:10:22,321 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 39 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2021-12-16 03:10:22,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 202 transitions, 502 flow [2021-12-16 03:10:22,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:10:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-16 03:10:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 727 transitions. [2021-12-16 03:10:22,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8696172248803827 [2021-12-16 03:10:22,325 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 727 transitions. [2021-12-16 03:10:22,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 727 transitions. [2021-12-16 03:10:22,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:22,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 727 transitions. [2021-12-16 03:10:22,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 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 03:10:22,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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 03:10:22,330 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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 03:10:22,330 INFO L186 Difference]: Start difference. First operand has 184 places, 181 transitions, 366 flow. Second operand 4 states and 727 transitions. [2021-12-16 03:10:22,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 202 transitions, 502 flow [2021-12-16 03:10:22,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 202 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 03:10:22,336 INFO L242 Difference]: Finished difference. Result has 185 places, 187 transitions, 413 flow [2021-12-16 03:10:22,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=413, PETRI_PLACES=185, PETRI_TRANSITIONS=187} [2021-12-16 03:10:22,337 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -2 predicate places. [2021-12-16 03:10:22,337 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 187 transitions, 413 flow [2021-12-16 03:10:22,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 172.75) internal successors, (691), 4 states have internal predecessors, (691), 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 03:10:22,338 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:22,339 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] [2021-12-16 03:10:22,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:10:22,339 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:22,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash -299465594, now seen corresponding path program 1 times [2021-12-16 03:10:22,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394471205] [2021-12-16 03:10:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:22,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:22,505 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 03:10:22,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:22,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394471205] [2021-12-16 03:10:22,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394471205] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:22,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:22,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:10:22,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505858089] [2021-12-16 03:10:22,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:22,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:10:22,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:10:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:10:22,512 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:22,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 187 transitions, 413 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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 03:10:22,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:22,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:22,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:22,737 INFO L129 PetriNetUnfolder]: 355/1781 cut-off events. [2021-12-16 03:10:22,738 INFO L130 PetriNetUnfolder]: For 193/195 co-relation queries the response was YES. [2021-12-16 03:10:22,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1781 events. 355/1781 cut-off events. For 193/195 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 12993 event pairs, 127 based on Foata normal form. 8/1643 useless extension candidates. Maximal degree in co-relation 2704. Up to 366 conditions per place. [2021-12-16 03:10:22,745 INFO L132 encePairwiseOnDemand]: 200/209 looper letters, 82 selfloop transitions, 7 changer transitions 0/242 dead transitions. [2021-12-16 03:10:22,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 242 transitions, 770 flow [2021-12-16 03:10:22,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:10:22,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 03:10:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1077 transitions. [2021-12-16 03:10:22,748 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8588516746411483 [2021-12-16 03:10:22,748 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1077 transitions. [2021-12-16 03:10:22,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1077 transitions. [2021-12-16 03:10:22,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:22,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1077 transitions. [2021-12-16 03:10:22,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 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 03:10:22,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:22,753 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:22,753 INFO L186 Difference]: Start difference. First operand has 185 places, 187 transitions, 413 flow. Second operand 6 states and 1077 transitions. [2021-12-16 03:10:22,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 242 transitions, 770 flow [2021-12-16 03:10:22,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 242 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-16 03:10:22,757 INFO L242 Difference]: Finished difference. Result has 193 places, 191 transitions, 461 flow [2021-12-16 03:10:22,757 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=461, PETRI_PLACES=193, PETRI_TRANSITIONS=191} [2021-12-16 03:10:22,758 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 6 predicate places. [2021-12-16 03:10:22,758 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 191 transitions, 461 flow [2021-12-16 03:10:22,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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 03:10:22,759 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:22,759 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] [2021-12-16 03:10:22,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:10:22,759 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:22,760 INFO L85 PathProgramCache]: Analyzing trace with hash 781561804, now seen corresponding path program 2 times [2021-12-16 03:10:22,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:22,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515353019] [2021-12-16 03:10:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:22,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:22,976 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 03:10:22,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:22,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515353019] [2021-12-16 03:10:22,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515353019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:22,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:22,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:10:22,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12907374] [2021-12-16 03:10:22,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:22,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:10:22,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:10:22,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:10:22,979 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 209 [2021-12-16 03:10:22,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 191 transitions, 461 flow. Second operand has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 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 03:10:22,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:22,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 209 [2021-12-16 03:10:22,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:23,130 INFO L129 PetriNetUnfolder]: 183/1122 cut-off events. [2021-12-16 03:10:23,130 INFO L130 PetriNetUnfolder]: For 329/381 co-relation queries the response was YES. [2021-12-16 03:10:23,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 1122 events. 183/1122 cut-off events. For 329/381 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7694 event pairs, 101 based on Foata normal form. 49/1081 useless extension candidates. Maximal degree in co-relation 1768. Up to 243 conditions per place. [2021-12-16 03:10:23,136 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 37 selfloop transitions, 11 changer transitions 3/208 dead transitions. [2021-12-16 03:10:23,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 208 transitions, 623 flow [2021-12-16 03:10:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:10:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:10:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 893 transitions. [2021-12-16 03:10:23,138 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8545454545454545 [2021-12-16 03:10:23,138 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 893 transitions. [2021-12-16 03:10:23,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 893 transitions. [2021-12-16 03:10:23,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:23,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 893 transitions. [2021-12-16 03:10:23,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 178.6) internal successors, (893), 5 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 03:10:23,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 03:10:23,143 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 03:10:23,143 INFO L186 Difference]: Start difference. First operand has 193 places, 191 transitions, 461 flow. Second operand 5 states and 893 transitions. [2021-12-16 03:10:23,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 208 transitions, 623 flow [2021-12-16 03:10:23,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 208 transitions, 615 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-12-16 03:10:23,147 INFO L242 Difference]: Finished difference. Result has 198 places, 192 transitions, 496 flow [2021-12-16 03:10:23,148 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=496, PETRI_PLACES=198, PETRI_TRANSITIONS=192} [2021-12-16 03:10:23,148 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 11 predicate places. [2021-12-16 03:10:23,148 INFO L470 AbstractCegarLoop]: Abstraction has has 198 places, 192 transitions, 496 flow [2021-12-16 03:10:23,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 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 03:10:23,149 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:23,149 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] [2021-12-16 03:10:23,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:10:23,150 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:23,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash -119616610, now seen corresponding path program 1 times [2021-12-16 03:10:23,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:23,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168545422] [2021-12-16 03:10:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:23,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:23,286 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 03:10:23,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:23,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168545422] [2021-12-16 03:10:23,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168545422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:23,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:23,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:10:23,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228706583] [2021-12-16 03:10:23,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:23,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:10:23,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:23,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:10:23,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:10:23,290 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:23,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 192 transitions, 496 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:23,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:23,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:23,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:23,508 INFO L129 PetriNetUnfolder]: 373/1941 cut-off events. [2021-12-16 03:10:23,509 INFO L130 PetriNetUnfolder]: For 807/819 co-relation queries the response was YES. [2021-12-16 03:10:23,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3340 conditions, 1941 events. 373/1941 cut-off events. For 807/819 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 14729 event pairs, 168 based on Foata normal form. 14/1822 useless extension candidates. Maximal degree in co-relation 3327. Up to 352 conditions per place. [2021-12-16 03:10:23,519 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 80 selfloop transitions, 13 changer transitions 2/248 dead transitions. [2021-12-16 03:10:23,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 248 transitions, 935 flow [2021-12-16 03:10:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:10:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 03:10:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1082 transitions. [2021-12-16 03:10:23,521 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8628389154704944 [2021-12-16 03:10:23,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1082 transitions. [2021-12-16 03:10:23,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1082 transitions. [2021-12-16 03:10:23,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:23,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1082 transitions. [2021-12-16 03:10:23,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.33333333333334) internal successors, (1082), 6 states have internal predecessors, (1082), 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 03:10:23,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:23,526 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:23,526 INFO L186 Difference]: Start difference. First operand has 198 places, 192 transitions, 496 flow. Second operand 6 states and 1082 transitions. [2021-12-16 03:10:23,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 248 transitions, 935 flow [2021-12-16 03:10:23,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 248 transitions, 920 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-16 03:10:23,532 INFO L242 Difference]: Finished difference. Result has 206 places, 200 transitions, 609 flow [2021-12-16 03:10:23,532 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=206, PETRI_TRANSITIONS=200} [2021-12-16 03:10:23,533 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 19 predicate places. [2021-12-16 03:10:23,533 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 200 transitions, 609 flow [2021-12-16 03:10:23,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:23,534 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:23,534 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] [2021-12-16 03:10:23,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:10:23,534 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:23,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash 527597564, now seen corresponding path program 2 times [2021-12-16 03:10:23,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:23,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324668368] [2021-12-16 03:10:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:23,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:23,664 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 03:10:23,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:23,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324668368] [2021-12-16 03:10:23,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324668368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:23,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:23,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:10:23,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073102729] [2021-12-16 03:10:23,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:23,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:10:23,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:10:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:10:23,667 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:23,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 200 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:23,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:23,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:23,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:23,906 INFO L129 PetriNetUnfolder]: 394/2019 cut-off events. [2021-12-16 03:10:23,906 INFO L130 PetriNetUnfolder]: For 1472/1474 co-relation queries the response was YES. [2021-12-16 03:10:23,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3708 conditions, 2019 events. 394/2019 cut-off events. For 1472/1474 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 15554 event pairs, 195 based on Foata normal form. 10/1894 useless extension candidates. Maximal degree in co-relation 3691. Up to 465 conditions per place. [2021-12-16 03:10:23,918 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 62 selfloop transitions, 18 changer transitions 0/233 dead transitions. [2021-12-16 03:10:23,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 233 transitions, 912 flow [2021-12-16 03:10:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:10:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 03:10:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1064 transitions. [2021-12-16 03:10:23,920 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8484848484848485 [2021-12-16 03:10:23,920 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1064 transitions. [2021-12-16 03:10:23,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1064 transitions. [2021-12-16 03:10:23,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:23,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1064 transitions. [2021-12-16 03:10:23,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 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 03:10:23,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:23,925 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:23,925 INFO L186 Difference]: Start difference. First operand has 206 places, 200 transitions, 609 flow. Second operand 6 states and 1064 transitions. [2021-12-16 03:10:23,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 233 transitions, 912 flow [2021-12-16 03:10:23,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 233 transitions, 889 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-12-16 03:10:23,932 INFO L242 Difference]: Finished difference. Result has 211 places, 204 transitions, 682 flow [2021-12-16 03:10:23,933 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=682, PETRI_PLACES=211, PETRI_TRANSITIONS=204} [2021-12-16 03:10:23,933 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 24 predicate places. [2021-12-16 03:10:23,933 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 204 transitions, 682 flow [2021-12-16 03:10:23,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:23,934 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:23,934 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] [2021-12-16 03:10:23,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:10:23,934 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1665551690, now seen corresponding path program 3 times [2021-12-16 03:10:23,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:23,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655686420] [2021-12-16 03:10:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:23,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:24,043 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 03:10:24,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:24,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655686420] [2021-12-16 03:10:24,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655686420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:24,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:24,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:10:24,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986656425] [2021-12-16 03:10:24,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:24,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:10:24,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:24,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:10:24,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:10:24,049 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:24,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 204 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:24,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:24,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:24,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:24,368 INFO L129 PetriNetUnfolder]: 465/2340 cut-off events. [2021-12-16 03:10:24,368 INFO L130 PetriNetUnfolder]: For 2549/2551 co-relation queries the response was YES. [2021-12-16 03:10:24,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4415 conditions, 2340 events. 465/2340 cut-off events. For 2549/2551 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18640 event pairs, 201 based on Foata normal form. 7/2198 useless extension candidates. Maximal degree in co-relation 4396. Up to 410 conditions per place. [2021-12-16 03:10:24,380 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 74 selfloop transitions, 20 changer transitions 0/247 dead transitions. [2021-12-16 03:10:24,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 247 transitions, 1066 flow [2021-12-16 03:10:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:10:24,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:10:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1241 transitions. [2021-12-16 03:10:24,382 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.848257006151743 [2021-12-16 03:10:24,383 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1241 transitions. [2021-12-16 03:10:24,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1241 transitions. [2021-12-16 03:10:24,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:24,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1241 transitions. [2021-12-16 03:10:24,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 177.28571428571428) internal successors, (1241), 7 states have internal predecessors, (1241), 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 03:10:24,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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 03:10:24,389 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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 03:10:24,389 INFO L186 Difference]: Start difference. First operand has 211 places, 204 transitions, 682 flow. Second operand 7 states and 1241 transitions. [2021-12-16 03:10:24,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 247 transitions, 1066 flow [2021-12-16 03:10:24,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 247 transitions, 1032 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-16 03:10:24,396 INFO L242 Difference]: Finished difference. Result has 216 places, 206 transitions, 721 flow [2021-12-16 03:10:24,397 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=721, PETRI_PLACES=216, PETRI_TRANSITIONS=206} [2021-12-16 03:10:24,397 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 29 predicate places. [2021-12-16 03:10:24,398 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 206 transitions, 721 flow [2021-12-16 03:10:24,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:24,398 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:24,398 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] [2021-12-16 03:10:24,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 03:10:24,399 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:24,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash 21117964, now seen corresponding path program 4 times [2021-12-16 03:10:24,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:24,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445910368] [2021-12-16 03:10:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:24,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:24,454 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 03:10:24,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:24,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445910368] [2021-12-16 03:10:24,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445910368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:24,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:24,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:10:24,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131884035] [2021-12-16 03:10:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:24,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:10:24,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:24,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:10:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:10:24,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:24,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 206 transitions, 721 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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 03:10:24,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:24,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:24,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:24,695 INFO L129 PetriNetUnfolder]: 447/2285 cut-off events. [2021-12-16 03:10:24,696 INFO L130 PetriNetUnfolder]: For 2796/2798 co-relation queries the response was YES. [2021-12-16 03:10:24,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4428 conditions, 2285 events. 447/2285 cut-off events. For 2796/2798 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18098 event pairs, 190 based on Foata normal form. 2/2130 useless extension candidates. Maximal degree in co-relation 4407. Up to 414 conditions per place. [2021-12-16 03:10:24,710 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 75 selfloop transitions, 18 changer transitions 0/246 dead transitions. [2021-12-16 03:10:24,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 246 transitions, 1096 flow [2021-12-16 03:10:24,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:10:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:10:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 904 transitions. [2021-12-16 03:10:24,712 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8650717703349282 [2021-12-16 03:10:24,712 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 904 transitions. [2021-12-16 03:10:24,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 904 transitions. [2021-12-16 03:10:24,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:24,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 904 transitions. [2021-12-16 03:10:24,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 180.8) internal successors, (904), 5 states have internal predecessors, (904), 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 03:10:24,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 03:10:24,716 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 03:10:24,716 INFO L186 Difference]: Start difference. First operand has 216 places, 206 transitions, 721 flow. Second operand 5 states and 904 transitions. [2021-12-16 03:10:24,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 246 transitions, 1096 flow [2021-12-16 03:10:24,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 246 transitions, 1044 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-12-16 03:10:24,727 INFO L242 Difference]: Finished difference. Result has 218 places, 208 transitions, 760 flow [2021-12-16 03:10:24,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=760, PETRI_PLACES=218, PETRI_TRANSITIONS=208} [2021-12-16 03:10:24,729 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 31 predicate places. [2021-12-16 03:10:24,729 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 208 transitions, 760 flow [2021-12-16 03:10:24,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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 03:10:24,730 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:24,730 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] [2021-12-16 03:10:24,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:10:24,730 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:24,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1070521520, now seen corresponding path program 5 times [2021-12-16 03:10:24,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:24,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517004450] [2021-12-16 03:10:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:24,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:24,781 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 03:10:24,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:24,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517004450] [2021-12-16 03:10:24,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517004450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:24,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:24,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:10:24,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184281937] [2021-12-16 03:10:24,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:24,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:10:24,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:10:24,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:10:24,784 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:24,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 208 transitions, 760 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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 03:10:24,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:24,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:24,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:25,010 INFO L129 PetriNetUnfolder]: 458/2294 cut-off events. [2021-12-16 03:10:25,010 INFO L130 PetriNetUnfolder]: For 2983/2986 co-relation queries the response was YES. [2021-12-16 03:10:25,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4454 conditions, 2294 events. 458/2294 cut-off events. For 2983/2986 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 18005 event pairs, 236 based on Foata normal form. 4/2140 useless extension candidates. Maximal degree in co-relation 4431. Up to 607 conditions per place. [2021-12-16 03:10:25,026 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 64 selfloop transitions, 22 changer transitions 0/239 dead transitions. [2021-12-16 03:10:25,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 239 transitions, 1103 flow [2021-12-16 03:10:25,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:10:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-16 03:10:25,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 895 transitions. [2021-12-16 03:10:25,028 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8564593301435407 [2021-12-16 03:10:25,028 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 895 transitions. [2021-12-16 03:10:25,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 895 transitions. [2021-12-16 03:10:25,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:25,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 895 transitions. [2021-12-16 03:10:25,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 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 03:10:25,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 03:10:25,032 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 03:10:25,032 INFO L186 Difference]: Start difference. First operand has 218 places, 208 transitions, 760 flow. Second operand 5 states and 895 transitions. [2021-12-16 03:10:25,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 239 transitions, 1103 flow [2021-12-16 03:10:25,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 239 transitions, 1066 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-12-16 03:10:25,041 INFO L242 Difference]: Finished difference. Result has 223 places, 216 transitions, 893 flow [2021-12-16 03:10:25,041 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=893, PETRI_PLACES=223, PETRI_TRANSITIONS=216} [2021-12-16 03:10:25,042 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 36 predicate places. [2021-12-16 03:10:25,042 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 216 transitions, 893 flow [2021-12-16 03:10:25,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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 03:10:25,043 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:25,043 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] [2021-12-16 03:10:25,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 03:10:25,043 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:25,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash 486915966, now seen corresponding path program 6 times [2021-12-16 03:10:25,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:25,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240877345] [2021-12-16 03:10:25,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:25,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:25,156 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 03:10:25,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:25,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240877345] [2021-12-16 03:10:25,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240877345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:25,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:10:25,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 03:10:25,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864839875] [2021-12-16 03:10:25,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:25,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:10:25,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:10:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:10:25,158 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 209 [2021-12-16 03:10:25,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 216 transitions, 893 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:25,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:25,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 209 [2021-12-16 03:10:25,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:25,381 INFO L129 PetriNetUnfolder]: 444/2213 cut-off events. [2021-12-16 03:10:25,382 INFO L130 PetriNetUnfolder]: For 3403/3405 co-relation queries the response was YES. [2021-12-16 03:10:25,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4364 conditions, 2213 events. 444/2213 cut-off events. For 3403/3405 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 17196 event pairs, 221 based on Foata normal form. 10/2076 useless extension candidates. Maximal degree in co-relation 4338. Up to 563 conditions per place. [2021-12-16 03:10:25,395 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 69 selfloop transitions, 24 changer transitions 0/246 dead transitions. [2021-12-16 03:10:25,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 246 transitions, 1190 flow [2021-12-16 03:10:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 03:10:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-16 03:10:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2021-12-16 03:10:25,397 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8532695374800638 [2021-12-16 03:10:25,397 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1070 transitions. [2021-12-16 03:10:25,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1070 transitions. [2021-12-16 03:10:25,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:25,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1070 transitions. [2021-12-16 03:10:25,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 03:10:25,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:25,402 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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 03:10:25,402 INFO L186 Difference]: Start difference. First operand has 223 places, 216 transitions, 893 flow. Second operand 6 states and 1070 transitions. [2021-12-16 03:10:25,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 246 transitions, 1190 flow [2021-12-16 03:10:25,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 246 transitions, 1150 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-12-16 03:10:25,447 INFO L242 Difference]: Finished difference. Result has 230 places, 219 transitions, 964 flow [2021-12-16 03:10:25,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=964, PETRI_PLACES=230, PETRI_TRANSITIONS=219} [2021-12-16 03:10:25,448 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 43 predicate places. [2021-12-16 03:10:25,448 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 219 transitions, 964 flow [2021-12-16 03:10:25,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 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 03:10:25,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:25,448 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] [2021-12-16 03:10:25,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 03:10:25,448 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:25,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:25,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1410643597, now seen corresponding path program 1 times [2021-12-16 03:10:25,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:25,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142748977] [2021-12-16 03:10:25,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:25,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:10:25,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:25,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142748977] [2021-12-16 03:10:25,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142748977] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:10:25,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520848418] [2021-12-16 03:10:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:25,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:25,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:10:25,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:10:25,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:10:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:25,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-16 03:10:25,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:10:26,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-16 03:10:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:10:26,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:10:26,406 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-12-16 03:10:26,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2021-12-16 03:10:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:10:26,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520848418] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:10:26,534 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:10:26,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 9] total 23 [2021-12-16 03:10:26,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009263616] [2021-12-16 03:10:26,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:10:26,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-16 03:10:26,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-16 03:10:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2021-12-16 03:10:26,537 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 209 [2021-12-16 03:10:26,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 219 transitions, 964 flow. Second operand has 23 states, 23 states have (on average 113.17391304347827) internal successors, (2603), 23 states have internal predecessors, (2603), 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 03:10:26,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:26,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 209 [2021-12-16 03:10:26,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:30,343 INFO L129 PetriNetUnfolder]: 7342/17187 cut-off events. [2021-12-16 03:10:30,344 INFO L130 PetriNetUnfolder]: For 20602/20602 co-relation queries the response was YES. [2021-12-16 03:10:30,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37360 conditions, 17187 events. 7342/17187 cut-off events. For 20602/20602 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 161010 event pairs, 392 based on Foata normal form. 33/16538 useless extension candidates. Maximal degree in co-relation 37331. Up to 3162 conditions per place. [2021-12-16 03:10:30,459 INFO L132 encePairwiseOnDemand]: 177/209 looper letters, 666 selfloop transitions, 140 changer transitions 8/910 dead transitions. [2021-12-16 03:10:30,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 910 transitions, 5589 flow [2021-12-16 03:10:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-12-16 03:10:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-12-16 03:10:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 6228 transitions. [2021-12-16 03:10:30,473 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5730585204269415 [2021-12-16 03:10:30,473 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 6228 transitions. [2021-12-16 03:10:30,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 6228 transitions. [2021-12-16 03:10:30,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:30,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 6228 transitions. [2021-12-16 03:10:30,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 119.76923076923077) internal successors, (6228), 52 states have internal predecessors, (6228), 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 03:10:30,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 209.0) internal successors, (11077), 53 states have internal predecessors, (11077), 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 03:10:30,513 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 209.0) internal successors, (11077), 53 states have internal predecessors, (11077), 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 03:10:30,514 INFO L186 Difference]: Start difference. First operand has 230 places, 219 transitions, 964 flow. Second operand 52 states and 6228 transitions. [2021-12-16 03:10:30,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 910 transitions, 5589 flow [2021-12-16 03:10:30,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 910 transitions, 5398 flow, removed 27 selfloop flow, removed 2 redundant places. [2021-12-16 03:10:30,636 INFO L242 Difference]: Finished difference. Result has 310 places, 362 transitions, 2066 flow [2021-12-16 03:10:30,636 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=2066, PETRI_PLACES=310, PETRI_TRANSITIONS=362} [2021-12-16 03:10:30,637 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 123 predicate places. [2021-12-16 03:10:30,637 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 362 transitions, 2066 flow [2021-12-16 03:10:30,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 113.17391304347827) internal successors, (2603), 23 states have internal predecessors, (2603), 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 03:10:30,637 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:30,638 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] [2021-12-16 03:10:30,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 03:10:30,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-16 03:10:30,859 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:30,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1359667531, now seen corresponding path program 2 times [2021-12-16 03:10:30,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:30,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077138849] [2021-12-16 03:10:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:30,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:10:31,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:31,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077138849] [2021-12-16 03:10:31,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077138849] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:10:31,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945225320] [2021-12-16 03:10:31,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:10:31,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:10:31,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:10:31,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 03:10:31,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-16 03:10:31,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:10:31,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 03:10:31,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:10:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:10:31,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:10:31,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945225320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:31,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:10:31,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2021-12-16 03:10:31,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423877996] [2021-12-16 03:10:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:31,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 03:10:31,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 03:10:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-16 03:10:31,461 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 209 [2021-12-16 03:10:31,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 362 transitions, 2066 flow. Second operand has 9 states, 9 states have (on average 140.66666666666666) internal successors, (1266), 9 states have internal predecessors, (1266), 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 03:10:31,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:31,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 209 [2021-12-16 03:10:31,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:32,357 INFO L129 PetriNetUnfolder]: 1112/5337 cut-off events. [2021-12-16 03:10:32,357 INFO L130 PetriNetUnfolder]: For 9151/9242 co-relation queries the response was YES. [2021-12-16 03:10:32,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12509 conditions, 5337 events. 1112/5337 cut-off events. For 9151/9242 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 53502 event pairs, 257 based on Foata normal form. 14/4996 useless extension candidates. Maximal degree in co-relation 12449. Up to 1393 conditions per place. [2021-12-16 03:10:32,402 INFO L132 encePairwiseOnDemand]: 188/209 looper letters, 94 selfloop transitions, 54 changer transitions 19/413 dead transitions. [2021-12-16 03:10:32,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 413 transitions, 2546 flow [2021-12-16 03:10:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 03:10:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-16 03:10:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1756 transitions. [2021-12-16 03:10:32,405 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7001594896331739 [2021-12-16 03:10:32,405 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1756 transitions. [2021-12-16 03:10:32,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1756 transitions. [2021-12-16 03:10:32,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:32,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1756 transitions. [2021-12-16 03:10:32,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 146.33333333333334) internal successors, (1756), 12 states have internal predecessors, (1756), 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 03:10:32,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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 03:10:32,411 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 209.0) internal successors, (2717), 13 states have internal predecessors, (2717), 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 03:10:32,411 INFO L186 Difference]: Start difference. First operand has 310 places, 362 transitions, 2066 flow. Second operand 12 states and 1756 transitions. [2021-12-16 03:10:32,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 413 transitions, 2546 flow [2021-12-16 03:10:32,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 413 transitions, 2456 flow, removed 19 selfloop flow, removed 10 redundant places. [2021-12-16 03:10:32,452 INFO L242 Difference]: Finished difference. Result has 314 places, 377 transitions, 2225 flow [2021-12-16 03:10:32,453 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1976, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2225, PETRI_PLACES=314, PETRI_TRANSITIONS=377} [2021-12-16 03:10:32,453 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 127 predicate places. [2021-12-16 03:10:32,453 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 377 transitions, 2225 flow [2021-12-16 03:10:32,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 140.66666666666666) internal successors, (1266), 9 states have internal predecessors, (1266), 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 03:10:32,454 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:32,454 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] [2021-12-16 03:10:32,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:10:32,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-16 03:10:32,667 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:32,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:32,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2032396257, now seen corresponding path program 1 times [2021-12-16 03:10:32,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:32,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316580398] [2021-12-16 03:10:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:32,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:10:32,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316580398] [2021-12-16 03:10:32,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316580398] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:10:32,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023918747] [2021-12-16 03:10:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:32,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:32,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:10:32,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:10:32,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 03:10:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:32,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-16 03:10:32,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:10:33,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-16 03:10:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:10:33,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:10:33,606 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-12-16 03:10:33,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2021-12-16 03:10:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:10:33,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023918747] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:10:33,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:10:33,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 9] total 22 [2021-12-16 03:10:33,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382360033] [2021-12-16 03:10:33,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:10:33,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-16 03:10:33,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:33,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-16 03:10:33,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2021-12-16 03:10:33,766 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 209 [2021-12-16 03:10:33,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 377 transitions, 2225 flow. Second operand has 22 states, 22 states have (on average 113.27272727272727) internal successors, (2492), 22 states have internal predecessors, (2492), 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 03:10:33,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:33,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 209 [2021-12-16 03:10:33,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:38,106 INFO L129 PetriNetUnfolder]: 8548/19653 cut-off events. [2021-12-16 03:10:38,106 INFO L130 PetriNetUnfolder]: For 52327/52421 co-relation queries the response was YES. [2021-12-16 03:10:38,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58485 conditions, 19653 events. 8548/19653 cut-off events. For 52327/52421 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 185765 event pairs, 2091 based on Foata normal form. 71/19376 useless extension candidates. Maximal degree in co-relation 58422. Up to 7621 conditions per place. [2021-12-16 03:10:38,347 INFO L132 encePairwiseOnDemand]: 178/209 looper letters, 588 selfloop transitions, 208 changer transitions 4/899 dead transitions. [2021-12-16 03:10:38,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 899 transitions, 7137 flow [2021-12-16 03:10:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-12-16 03:10:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-12-16 03:10:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7007 transitions. [2021-12-16 03:10:38,355 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5496117342536669 [2021-12-16 03:10:38,355 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 7007 transitions. [2021-12-16 03:10:38,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 7007 transitions. [2021-12-16 03:10:38,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:38,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 7007 transitions. [2021-12-16 03:10:38,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 114.8688524590164) internal successors, (7007), 61 states have internal predecessors, (7007), 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 03:10:38,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 209.0) internal successors, (12958), 62 states have internal predecessors, (12958), 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 03:10:38,469 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 209.0) internal successors, (12958), 62 states have internal predecessors, (12958), 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 03:10:38,469 INFO L186 Difference]: Start difference. First operand has 314 places, 377 transitions, 2225 flow. Second operand 61 states and 7007 transitions. [2021-12-16 03:10:38,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 899 transitions, 7137 flow [2021-12-16 03:10:38,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 899 transitions, 7075 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-12-16 03:10:38,642 INFO L242 Difference]: Finished difference. Result has 396 places, 539 transitions, 4662 flow [2021-12-16 03:10:38,643 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2205, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=4662, PETRI_PLACES=396, PETRI_TRANSITIONS=539} [2021-12-16 03:10:38,643 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 209 predicate places. [2021-12-16 03:10:38,643 INFO L470 AbstractCegarLoop]: Abstraction has has 396 places, 539 transitions, 4662 flow [2021-12-16 03:10:38,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 113.27272727272727) internal successors, (2492), 22 states have internal predecessors, (2492), 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 03:10:38,644 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:38,644 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] [2021-12-16 03:10:38,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 03:10:38,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:38,861 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:38,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:38,861 INFO L85 PathProgramCache]: Analyzing trace with hash -575446859, now seen corresponding path program 2 times [2021-12-16 03:10:38,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:38,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978582379] [2021-12-16 03:10:38,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:38,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:10:39,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:39,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978582379] [2021-12-16 03:10:39,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978582379] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:10:39,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255101651] [2021-12-16 03:10:39,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:10:39,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:39,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:10:39,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:10:39,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 03:10:39,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-16 03:10:39,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:10:39,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 03:10:39,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:10:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:10:39,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:10:39,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255101651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:10:39,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:10:39,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-16 03:10:39,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639707531] [2021-12-16 03:10:39,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:10:39,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 03:10:39,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:39,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 03:10:39,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-16 03:10:39,455 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 209 [2021-12-16 03:10:39,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 539 transitions, 4662 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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 03:10:39,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:39,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 209 [2021-12-16 03:10:39,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:40,263 INFO L129 PetriNetUnfolder]: 937/4709 cut-off events. [2021-12-16 03:10:40,263 INFO L130 PetriNetUnfolder]: For 19373/19544 co-relation queries the response was YES. [2021-12-16 03:10:40,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14334 conditions, 4709 events. 937/4709 cut-off events. For 19373/19544 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 44506 event pairs, 181 based on Foata normal form. 110/4662 useless extension candidates. Maximal degree in co-relation 14242. Up to 605 conditions per place. [2021-12-16 03:10:40,313 INFO L132 encePairwiseOnDemand]: 201/209 looper letters, 81 selfloop transitions, 48 changer transitions 0/581 dead transitions. [2021-12-16 03:10:40,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 581 transitions, 5202 flow [2021-12-16 03:10:40,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:10:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-16 03:10:40,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1236 transitions. [2021-12-16 03:10:40,315 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8448393711551606 [2021-12-16 03:10:40,315 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1236 transitions. [2021-12-16 03:10:40,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1236 transitions. [2021-12-16 03:10:40,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:10:40,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1236 transitions. [2021-12-16 03:10:40,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 176.57142857142858) internal successors, (1236), 7 states have internal predecessors, (1236), 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 03:10:40,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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 03:10:40,318 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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 03:10:40,318 INFO L186 Difference]: Start difference. First operand has 396 places, 539 transitions, 4662 flow. Second operand 7 states and 1236 transitions. [2021-12-16 03:10:40,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 581 transitions, 5202 flow [2021-12-16 03:10:40,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 581 transitions, 4702 flow, removed 243 selfloop flow, removed 9 redundant places. [2021-12-16 03:10:40,414 INFO L242 Difference]: Finished difference. Result has 394 places, 542 transitions, 4302 flow [2021-12-16 03:10:40,415 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4162, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4302, PETRI_PLACES=394, PETRI_TRANSITIONS=542} [2021-12-16 03:10:40,415 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 207 predicate places. [2021-12-16 03:10:40,415 INFO L470 AbstractCegarLoop]: Abstraction has has 394 places, 542 transitions, 4302 flow [2021-12-16 03:10:40,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 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 03:10:40,416 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:10:40,416 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] [2021-12-16 03:10:40,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 03:10:40,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:40,631 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:10:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:10:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1266164479, now seen corresponding path program 1 times [2021-12-16 03:10:40,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:10:40,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18657038] [2021-12-16 03:10:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:40,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:10:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:10:40,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:10:40,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18657038] [2021-12-16 03:10:40,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18657038] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:10:40,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509422803] [2021-12-16 03:10:40,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:10:40,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:10:40,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:10:40,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:10:40,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 03:10:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:10:40,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-16 03:10:40,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:10:41,938 INFO L354 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2021-12-16 03:10:41,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 13 [2021-12-16 03:10:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:10:42,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:10:42,675 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 03:10:42,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 26 [2021-12-16 03:10:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:10:43,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509422803] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:10:43,883 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:10:43,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 22] total 47 [2021-12-16 03:10:43,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655060709] [2021-12-16 03:10:43,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:10:43,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-12-16 03:10:43,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:10:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-12-16 03:10:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1987, Unknown=0, NotChecked=0, Total=2162 [2021-12-16 03:10:43,888 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 209 [2021-12-16 03:10:43,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 542 transitions, 4302 flow. Second operand has 47 states, 47 states have (on average 85.76595744680851) internal successors, (4031), 47 states have internal predecessors, (4031), 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 03:10:43,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:10:43,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 209 [2021-12-16 03:10:43,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:10:59,293 INFO L129 PetriNetUnfolder]: 17296/36899 cut-off events. [2021-12-16 03:10:59,294 INFO L130 PetriNetUnfolder]: For 157924/158244 co-relation queries the response was YES. [2021-12-16 03:11:00,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124017 conditions, 36899 events. 17296/36899 cut-off events. For 157924/158244 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 376077 event pairs, 2720 based on Foata normal form. 138/36382 useless extension candidates. Maximal degree in co-relation 123923. Up to 13398 conditions per place. [2021-12-16 03:11:00,270 INFO L132 encePairwiseOnDemand]: 148/209 looper letters, 1139 selfloop transitions, 426 changer transitions 216/1913 dead transitions. [2021-12-16 03:11:00,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 1913 transitions, 15848 flow [2021-12-16 03:11:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2021-12-16 03:11:00,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-12-16 03:11:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 12646 transitions. [2021-12-16 03:11:00,280 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.43219412166780585 [2021-12-16 03:11:00,280 INFO L72 ComplementDD]: Start complementDD. Operand 140 states and 12646 transitions. [2021-12-16 03:11:00,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 12646 transitions. [2021-12-16 03:11:00,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:11:00,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 140 states and 12646 transitions. [2021-12-16 03:11:00,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 141 states, 140 states have (on average 90.32857142857142) internal successors, (12646), 140 states have internal predecessors, (12646), 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 03:11:00,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 141 states, 141 states have (on average 209.0) internal successors, (29469), 141 states have internal predecessors, (29469), 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 03:11:00,329 INFO L81 ComplementDD]: Finished complementDD. Result has 141 states, 141 states have (on average 209.0) internal successors, (29469), 141 states have internal predecessors, (29469), 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 03:11:00,329 INFO L186 Difference]: Start difference. First operand has 394 places, 542 transitions, 4302 flow. Second operand 140 states and 12646 transitions. [2021-12-16 03:11:00,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 1913 transitions, 15848 flow [2021-12-16 03:11:01,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 1913 transitions, 15673 flow, removed 41 selfloop flow, removed 2 redundant places. [2021-12-16 03:11:01,317 INFO L242 Difference]: Finished difference. Result has 619 places, 841 transitions, 8145 flow [2021-12-16 03:11:01,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4253, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=140, PETRI_FLOW=8145, PETRI_PLACES=619, PETRI_TRANSITIONS=841} [2021-12-16 03:11:01,318 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 432 predicate places. [2021-12-16 03:11:01,318 INFO L470 AbstractCegarLoop]: Abstraction has has 619 places, 841 transitions, 8145 flow [2021-12-16 03:11:01,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 85.76595744680851) internal successors, (4031), 47 states have internal predecessors, (4031), 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 03:11:01,319 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:11:01,320 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] [2021-12-16 03:11:01,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-16 03:11:01,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-16 03:11:01,535 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:11:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:11:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash -958446057, now seen corresponding path program 1 times [2021-12-16 03:11:01,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:11:01,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836893456] [2021-12-16 03:11:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:11:01,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:11:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:11:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:11:01,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:11:01,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836893456] [2021-12-16 03:11:01,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836893456] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:11:01,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926371168] [2021-12-16 03:11:01,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:11:01,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:11:01,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:11:01,781 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:11:01,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 03:11:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:11:01,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-16 03:11:01,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:11:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:11:02,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:11:02,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:11:02,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926371168] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:11:02,526 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:11:02,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2021-12-16 03:11:02,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654466425] [2021-12-16 03:11:02,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:11:02,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-16 03:11:02,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:11:02,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-16 03:11:02,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-12-16 03:11:02,529 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209 [2021-12-16 03:11:02,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 841 transitions, 8145 flow. Second operand has 20 states, 20 states have (on average 167.35) internal successors, (3347), 20 states have internal predecessors, (3347), 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 03:11:02,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:11:02,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209 [2021-12-16 03:11:02,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:11:08,529 INFO L129 PetriNetUnfolder]: 4173/16268 cut-off events. [2021-12-16 03:11:08,529 INFO L130 PetriNetUnfolder]: For 128767/129463 co-relation queries the response was YES. [2021-12-16 03:11:08,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65554 conditions, 16268 events. 4173/16268 cut-off events. For 128767/129463 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 184412 event pairs, 1098 based on Foata normal form. 173/15304 useless extension candidates. Maximal degree in co-relation 65372. Up to 2661 conditions per place. [2021-12-16 03:11:08,856 INFO L132 encePairwiseOnDemand]: 192/209 looper letters, 283 selfloop transitions, 451 changer transitions 3/1289 dead transitions. [2021-12-16 03:11:08,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 1289 transitions, 14852 flow [2021-12-16 03:11:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-16 03:11:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-12-16 03:11:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 7180 transitions. [2021-12-16 03:11:08,862 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8179539758487127 [2021-12-16 03:11:08,862 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 7180 transitions. [2021-12-16 03:11:08,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 7180 transitions. [2021-12-16 03:11:08,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:11:08,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 7180 transitions. [2021-12-16 03:11:08,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 170.95238095238096) internal successors, (7180), 42 states have internal predecessors, (7180), 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 03:11:08,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 209.0) internal successors, (8987), 43 states have internal predecessors, (8987), 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 03:11:08,879 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 209.0) internal successors, (8987), 43 states have internal predecessors, (8987), 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 03:11:08,880 INFO L186 Difference]: Start difference. First operand has 619 places, 841 transitions, 8145 flow. Second operand 42 states and 7180 transitions. [2021-12-16 03:11:08,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 1289 transitions, 14852 flow [2021-12-16 03:11:09,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 1289 transitions, 14411 flow, removed 168 selfloop flow, removed 11 redundant places. [2021-12-16 03:11:09,705 INFO L242 Difference]: Finished difference. Result has 656 places, 1144 transitions, 13683 flow [2021-12-16 03:11:09,705 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=7727, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=13683, PETRI_PLACES=656, PETRI_TRANSITIONS=1144} [2021-12-16 03:11:09,705 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 469 predicate places. [2021-12-16 03:11:09,706 INFO L470 AbstractCegarLoop]: Abstraction has has 656 places, 1144 transitions, 13683 flow [2021-12-16 03:11:09,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 167.35) internal successors, (3347), 20 states have internal predecessors, (3347), 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 03:11:09,706 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:11:09,707 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] [2021-12-16 03:11:09,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 03:11:09,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-16 03:11:09,919 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-16 03:11:09,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:11:09,920 INFO L85 PathProgramCache]: Analyzing trace with hash -700678007, now seen corresponding path program 2 times [2021-12-16 03:11:09,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:11:09,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060936265] [2021-12-16 03:11:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:11:09,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:11:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:11:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:11:10,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:11:10,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060936265] [2021-12-16 03:11:10,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060936265] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:11:10,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904768586] [2021-12-16 03:11:10,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 03:11:10,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:11:10,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:11:10,022 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:11:10,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 03:11:10,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 03:11:10,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 03:11:10,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-16 03:11:10,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:11:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:11:10,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 03:11:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 03:11:10,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904768586] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 03:11:10,637 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 03:11:10,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-16 03:11:10,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647538267] [2021-12-16 03:11:10,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 03:11:10,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-16 03:11:10,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:11:10,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-16 03:11:10,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-16 03:11:10,640 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209 [2021-12-16 03:11:10,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 1144 transitions, 13683 flow. Second operand has 19 states, 19 states have (on average 167.42105263157896) internal successors, (3181), 19 states have internal predecessors, (3181), 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 03:11:10,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-16 03:11:10,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209 [2021-12-16 03:11:10,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-16 03:11:17,723 INFO L129 PetriNetUnfolder]: 4653/19165 cut-off events. [2021-12-16 03:11:17,723 INFO L130 PetriNetUnfolder]: For 170039/171133 co-relation queries the response was YES. [2021-12-16 03:11:18,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83827 conditions, 19165 events. 4653/19165 cut-off events. For 170039/171133 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 229827 event pairs, 1116 based on Foata normal form. 144/18084 useless extension candidates. Maximal degree in co-relation 83620. Up to 2994 conditions per place. [2021-12-16 03:11:18,438 INFO L132 encePairwiseOnDemand]: 188/209 looper letters, 391 selfloop transitions, 547 changer transitions 17/1507 dead transitions. [2021-12-16 03:11:18,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 1507 transitions, 19680 flow [2021-12-16 03:11:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-16 03:11:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-12-16 03:11:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5386 transitions. [2021-12-16 03:11:18,442 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.831301126717086 [2021-12-16 03:11:18,442 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 5386 transitions. [2021-12-16 03:11:18,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 5386 transitions. [2021-12-16 03:11:18,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 03:11:18,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 5386 transitions. [2021-12-16 03:11:18,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 173.74193548387098) internal successors, (5386), 31 states have internal predecessors, (5386), 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 03:11:18,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 209.0) internal successors, (6688), 32 states have internal predecessors, (6688), 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 03:11:18,458 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 209.0) internal successors, (6688), 32 states have internal predecessors, (6688), 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 03:11:18,458 INFO L186 Difference]: Start difference. First operand has 656 places, 1144 transitions, 13683 flow. Second operand 31 states and 5386 transitions. [2021-12-16 03:11:18,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 1507 transitions, 19680 flow [2021-12-16 03:11:19,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 1507 transitions, 19098 flow, removed 239 selfloop flow, removed 4 redundant places. [2021-12-16 03:11:19,927 INFO L242 Difference]: Finished difference. Result has 698 places, 1275 transitions, 16682 flow [2021-12-16 03:11:19,927 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=13252, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=427, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=16682, PETRI_PLACES=698, PETRI_TRANSITIONS=1275} [2021-12-16 03:11:19,928 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 511 predicate places. [2021-12-16 03:11:19,928 INFO L470 AbstractCegarLoop]: Abstraction has has 698 places, 1275 transitions, 16682 flow [2021-12-16 03:11:19,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 167.42105263157896) internal successors, (3181), 19 states have internal predecessors, (3181), 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 03:11:19,929 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-16 03:11:19,929 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] [2021-12-16 03:11:19,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0