./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-name-comparator-symm.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/chl-name-comparator-symm.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 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 22:45:40,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:45:40,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:45:40,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:45:40,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:45:40,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:45:40,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:45:40,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:45:40,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:45:40,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:45:40,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:45:40,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:45:40,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:45:40,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:45:40,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:45:40,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:45:40,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:45:40,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:45:40,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:45:40,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:45:40,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:45:40,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:45:40,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:45:40,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:45:40,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:45:40,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:45:40,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:45:40,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:45:40,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:45:40,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:45:40,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:45:40,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:45:40,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:45:40,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:45:40,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:45:40,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:45:40,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:45:40,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:45:40,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:45:40,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:45:40,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:45:40,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:45:40,955 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:45:40,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:45:40,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:45:40,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:45:40,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:45:40,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:45:40,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:45:40,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:45:40,958 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:45:40,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:45:40,959 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:45:40,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:45:40,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:45:40,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:45:40,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:45:40,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:45:40,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:45:40,960 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:45:40,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:45:40,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:45:40,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:45:40,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:45:40,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:45:40,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:45:40,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:45:40,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:45:40,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:45:40,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:45:40,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:45:40,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:45:40,962 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:45:40,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:45:40,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:45:40,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:45:40,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908fbcc4d3742ed9abcae99df082df11caf0d6bd4e74389f515555cf6e492354 [2021-12-17 22:45:41,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:45:41,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:45:41,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:45:41,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:45:41,229 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:45:41,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-name-comparator-symm.wvr.c [2021-12-17 22:45:41,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc5b8b02/1419b3ca96ed4d1bbcb97f4f16e23aba/FLAG2afa5f5ec [2021-12-17 22:45:41,622 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:45:41,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-symm.wvr.c [2021-12-17 22:45:41,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc5b8b02/1419b3ca96ed4d1bbcb97f4f16e23aba/FLAG2afa5f5ec [2021-12-17 22:45:41,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc5b8b02/1419b3ca96ed4d1bbcb97f4f16e23aba [2021-12-17 22:45:41,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:45:41,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:45:41,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:45:41,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:45:41,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:45:41,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc0cf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41, skipping insertion in model container [2021-12-17 22:45:41,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:45:41,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:45:41,826 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/chl-name-comparator-symm.wvr.c[3856,3869] [2021-12-17 22:45:41,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:45:41,846 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:45:41,879 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/chl-name-comparator-symm.wvr.c[3856,3869] [2021-12-17 22:45:41,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:45:41,899 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:45:41,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41 WrapperNode [2021-12-17 22:45:41,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:45:41,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:45:41,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:45:41,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:45:41,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,957 INFO L137 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 278 [2021-12-17 22:45:41,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:45:41,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:45:41,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:45:41,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:45:41,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:41,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:42,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:45:42,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:45:42,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:45:42,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:45:42,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (1/1) ... [2021-12-17 22:45:42,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:45:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:45:42,041 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) [2021-12-17 22:45:42,065 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 [2021-12-17 22:45:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:45:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:45:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:45:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 22:45:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-17 22:45:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-17 22:45:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-17 22:45:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-17 22:45:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:45:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 22:45:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:45:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:45:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:45:42,092 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-17 22:45:42,206 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:45:42,207 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:45:42,475 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:45:42,484 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:45:42,484 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-17 22:45:42,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:45:42 BoogieIcfgContainer [2021-12-17 22:45:42,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:45:42,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:45:42,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:45:42,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:45:42,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:45:41" (1/3) ... [2021-12-17 22:45:42,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5643818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:45:42, skipping insertion in model container [2021-12-17 22:45:42,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:45:41" (2/3) ... [2021-12-17 22:45:42,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5643818b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:45:42, skipping insertion in model container [2021-12-17 22:45:42,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:45:42" (3/3) ... [2021-12-17 22:45:42,506 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2021-12-17 22:45:42,509 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:45:42,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:45:42,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 22:45:42,509 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:45:42,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,566 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,567 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,568 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,569 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,570 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,570 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,570 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,570 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,570 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,571 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,571 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,571 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,572 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,572 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,572 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,572 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,572 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,573 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,574 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,575 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,576 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,577 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,578 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,579 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,580 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,581 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,582 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,583 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,583 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,587 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,588 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,589 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,590 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,591 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,592 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,593 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,594 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,595 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,596 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,597 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,600 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,604 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,605 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,606 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,607 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,608 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,609 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,616 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,617 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,618 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,619 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,620 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,627 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,628 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,636 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,637 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,638 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,639 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,640 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,641 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,642 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,643 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,644 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,645 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,649 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,651 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,652 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,653 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,656 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,657 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,658 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:45:42,661 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-17 22:45:42,692 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:45:42,697 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 [2021-12-17 22:45:42,697 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-17 22:45:42,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 353 transitions, 722 flow [2021-12-17 22:45:42,837 INFO L129 PetriNetUnfolder]: 35/351 cut-off events. [2021-12-17 22:45:42,837 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-17 22:45:42,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 351 events. 35/351 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 737 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 211. Up to 2 conditions per place. [2021-12-17 22:45:42,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 353 transitions, 722 flow [2021-12-17 22:45:42,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 342 transitions, 696 flow [2021-12-17 22:45:42,936 INFO L129 PetriNetUnfolder]: 35/341 cut-off events. [2021-12-17 22:45:42,937 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-17 22:45:42,937 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:42,938 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:42,938 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:42,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1977256279, now seen corresponding path program 1 times [2021-12-17 22:45:42,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:42,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635376792] [2021-12-17 22:45:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:42,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:43,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:43,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635376792] [2021-12-17 22:45:43,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635376792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:43,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:43,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 22:45:43,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774039216] [2021-12-17 22:45:43,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:43,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 22:45:43,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:43,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 22:45:43,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 22:45:43,224 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 353 [2021-12-17 22:45:43,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 342 transitions, 696 flow. Second operand has 2 states, 2 states have (on average 337.0) internal successors, (674), 2 states have internal predecessors, (674), 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) [2021-12-17 22:45:43,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:43,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 353 [2021-12-17 22:45:43,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:43,273 INFO L129 PetriNetUnfolder]: 21/328 cut-off events. [2021-12-17 22:45:43,273 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-12-17 22:45:43,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 328 events. 21/328 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 709 event pairs, 0 based on Foata normal form. 17/313 useless extension candidates. Maximal degree in co-relation 202. Up to 5 conditions per place. [2021-12-17 22:45:43,278 INFO L132 encePairwiseOnDemand]: 339/353 looper letters, 4 selfloop transitions, 0 changer transitions 3/328 dead transitions. [2021-12-17 22:45:43,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 328 transitions, 676 flow [2021-12-17 22:45:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 22:45:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-17 22:45:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 686 transitions. [2021-12-17 22:45:43,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9716713881019831 [2021-12-17 22:45:43,292 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 686 transitions. [2021-12-17 22:45:43,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 686 transitions. [2021-12-17 22:45:43,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:43,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 686 transitions. [2021-12-17 22:45:43,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 343.0) internal successors, (686), 2 states have internal predecessors, (686), 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) [2021-12-17 22:45:43,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 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) [2021-12-17 22:45:43,304 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 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) [2021-12-17 22:45:43,306 INFO L186 Difference]: Start difference. First operand has 314 places, 342 transitions, 696 flow. Second operand 2 states and 686 transitions. [2021-12-17 22:45:43,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 328 transitions, 676 flow [2021-12-17 22:45:43,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 328 transitions, 668 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-17 22:45:43,314 INFO L242 Difference]: Finished difference. Result has 311 places, 325 transitions, 654 flow [2021-12-17 22:45:43,315 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=654, PETRI_PLACES=311, PETRI_TRANSITIONS=325} [2021-12-17 22:45:43,318 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, -3 predicate places. [2021-12-17 22:45:43,318 INFO L470 AbstractCegarLoop]: Abstraction has has 311 places, 325 transitions, 654 flow [2021-12-17 22:45:43,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 337.0) internal successors, (674), 2 states have internal predecessors, (674), 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) [2021-12-17 22:45:43,318 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:43,319 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:43,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:45:43,319 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:43,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:43,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1672738487, now seen corresponding path program 1 times [2021-12-17 22:45:43,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451280599] [2021-12-17 22:45:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:43,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:43,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:43,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:43,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451280599] [2021-12-17 22:45:43,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451280599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:43,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:43,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:45:43,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295643096] [2021-12-17 22:45:43,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:43,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:45:43,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:43,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:45:43,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:45:43,470 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 353 [2021-12-17 22:45:43,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 325 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 22:45:43,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:43,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 353 [2021-12-17 22:45:43,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:43,940 INFO L129 PetriNetUnfolder]: 642/3582 cut-off events. [2021-12-17 22:45:43,940 INFO L130 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2021-12-17 22:45:43,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4430 conditions, 3582 events. 642/3582 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 33579 event pairs, 264 based on Foata normal form. 0/3053 useless extension candidates. Maximal degree in co-relation 4427. Up to 505 conditions per place. [2021-12-17 22:45:43,961 INFO L132 encePairwiseOnDemand]: 345/353 looper letters, 55 selfloop transitions, 4 changer transitions 0/350 dead transitions. [2021-12-17 22:45:43,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 350 transitions, 825 flow [2021-12-17 22:45:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:45:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:45:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2021-12-17 22:45:43,964 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9206798866855525 [2021-12-17 22:45:43,964 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 975 transitions. [2021-12-17 22:45:43,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 975 transitions. [2021-12-17 22:45:43,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:43,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 975 transitions. [2021-12-17 22:45:43,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 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) [2021-12-17 22:45:43,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:45:43,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:45:43,971 INFO L186 Difference]: Start difference. First operand has 311 places, 325 transitions, 654 flow. Second operand 3 states and 975 transitions. [2021-12-17 22:45:43,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 350 transitions, 825 flow [2021-12-17 22:45:43,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 350 transitions, 825 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-17 22:45:43,977 INFO L242 Difference]: Finished difference. Result has 312 places, 329 transitions, 694 flow [2021-12-17 22:45:43,978 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=694, PETRI_PLACES=312, PETRI_TRANSITIONS=329} [2021-12-17 22:45:43,978 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, -2 predicate places. [2021-12-17 22:45:43,978 INFO L470 AbstractCegarLoop]: Abstraction has has 312 places, 329 transitions, 694 flow [2021-12-17 22:45:43,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 22:45:43,979 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:43,979 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:43,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 22:45:43,980 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:43,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1890052835, now seen corresponding path program 1 times [2021-12-17 22:45:43,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:43,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932593657] [2021-12-17 22:45:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:43,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:44,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:44,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932593657] [2021-12-17 22:45:44,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932593657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:44,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:44,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:45:44,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330659669] [2021-12-17 22:45:44,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:44,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:45:44,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:44,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:45:44,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:45:44,023 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 353 [2021-12-17 22:45:44,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 329 transitions, 694 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 22:45:44,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:44,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 353 [2021-12-17 22:45:44,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:44,342 INFO L129 PetriNetUnfolder]: 475/3127 cut-off events. [2021-12-17 22:45:44,342 INFO L130 PetriNetUnfolder]: For 259/259 co-relation queries the response was YES. [2021-12-17 22:45:44,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3889 conditions, 3127 events. 475/3127 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 29491 event pairs, 253 based on Foata normal form. 49/2760 useless extension candidates. Maximal degree in co-relation 3884. Up to 317 conditions per place. [2021-12-17 22:45:44,357 INFO L132 encePairwiseOnDemand]: 347/353 looper letters, 57 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2021-12-17 22:45:44,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 350 transitions, 853 flow [2021-12-17 22:45:44,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:45:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:45:44,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 973 transitions. [2021-12-17 22:45:44,360 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9187913125590179 [2021-12-17 22:45:44,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 973 transitions. [2021-12-17 22:45:44,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 973 transitions. [2021-12-17 22:45:44,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:44,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 973 transitions. [2021-12-17 22:45:44,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 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) [2021-12-17 22:45:44,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:45:44,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:45:44,365 INFO L186 Difference]: Start difference. First operand has 312 places, 329 transitions, 694 flow. Second operand 3 states and 973 transitions. [2021-12-17 22:45:44,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 350 transitions, 853 flow [2021-12-17 22:45:44,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 350 transitions, 851 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:45:44,370 INFO L242 Difference]: Finished difference. Result has 315 places, 329 transitions, 704 flow [2021-12-17 22:45:44,370 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=315, PETRI_TRANSITIONS=329} [2021-12-17 22:45:44,371 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 1 predicate places. [2021-12-17 22:45:44,371 INFO L470 AbstractCegarLoop]: Abstraction has has 315 places, 329 transitions, 704 flow [2021-12-17 22:45:44,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 22:45:44,372 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:44,372 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:44,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 22:45:44,372 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:44,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1681652397, now seen corresponding path program 1 times [2021-12-17 22:45:44,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:44,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532093717] [2021-12-17 22:45:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:44,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:44,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:44,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532093717] [2021-12-17 22:45:44,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532093717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:44,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:44,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 22:45:44,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832366204] [2021-12-17 22:45:44,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:44,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 22:45:44,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 22:45:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 22:45:44,427 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 353 [2021-12-17 22:45:44,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 329 transitions, 704 flow. Second operand has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2021-12-17 22:45:44,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:44,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 353 [2021-12-17 22:45:44,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:44,644 INFO L129 PetriNetUnfolder]: 165/1793 cut-off events. [2021-12-17 22:45:44,644 INFO L130 PetriNetUnfolder]: For 29/52 co-relation queries the response was YES. [2021-12-17 22:45:44,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2042 conditions, 1793 events. 165/1793 cut-off events. For 29/52 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13495 event pairs, 21 based on Foata normal form. 1/1607 useless extension candidates. Maximal degree in co-relation 2036. Up to 74 conditions per place. [2021-12-17 22:45:44,656 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 27 selfloop transitions, 11 changer transitions 0/344 dead transitions. [2021-12-17 22:45:44,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 344 transitions, 814 flow [2021-12-17 22:45:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 22:45:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-17 22:45:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2021-12-17 22:45:44,658 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.919971671388102 [2021-12-17 22:45:44,658 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2021-12-17 22:45:44,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2021-12-17 22:45:44,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:44,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2021-12-17 22:45:44,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 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) [2021-12-17 22:45:44,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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) [2021-12-17 22:45:44,692 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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) [2021-12-17 22:45:44,692 INFO L186 Difference]: Start difference. First operand has 315 places, 329 transitions, 704 flow. Second operand 4 states and 1299 transitions. [2021-12-17 22:45:44,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 344 transitions, 814 flow [2021-12-17 22:45:44,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 344 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:45:44,696 INFO L242 Difference]: Finished difference. Result has 320 places, 335 transitions, 772 flow [2021-12-17 22:45:44,697 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=772, PETRI_PLACES=320, PETRI_TRANSITIONS=335} [2021-12-17 22:45:44,698 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 6 predicate places. [2021-12-17 22:45:44,698 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 335 transitions, 772 flow [2021-12-17 22:45:44,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2021-12-17 22:45:44,699 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:44,699 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:44,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 22:45:44,700 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:44,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1341510675, now seen corresponding path program 1 times [2021-12-17 22:45:44,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:44,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831375354] [2021-12-17 22:45:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:44,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:44,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:44,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831375354] [2021-12-17 22:45:44,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831375354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:44,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:44,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:45:44,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765750583] [2021-12-17 22:45:44,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:44,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:45:44,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:44,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:45:44,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:45:44,760 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 353 [2021-12-17 22:45:44,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 335 transitions, 772 flow. Second operand has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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) [2021-12-17 22:45:44,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:44,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 353 [2021-12-17 22:45:44,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:44,938 INFO L129 PetriNetUnfolder]: 132/1424 cut-off events. [2021-12-17 22:45:44,939 INFO L130 PetriNetUnfolder]: For 42/53 co-relation queries the response was YES. [2021-12-17 22:45:44,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1424 events. 132/1424 cut-off events. For 42/53 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9520 event pairs, 31 based on Foata normal form. 2/1293 useless extension candidates. Maximal degree in co-relation 1722. Up to 113 conditions per place. [2021-12-17 22:45:44,948 INFO L132 encePairwiseOnDemand]: 342/353 looper letters, 30 selfloop transitions, 9 changer transitions 0/352 dead transitions. [2021-12-17 22:45:44,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 352 transitions, 890 flow [2021-12-17 22:45:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 22:45:44,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-17 22:45:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1937 transitions. [2021-12-17 22:45:44,952 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9145420207743153 [2021-12-17 22:45:44,952 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1937 transitions. [2021-12-17 22:45:44,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1937 transitions. [2021-12-17 22:45:44,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:44,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1937 transitions. [2021-12-17 22:45:44,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.8333333333333) internal successors, (1937), 6 states have internal predecessors, (1937), 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) [2021-12-17 22:45:44,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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) [2021-12-17 22:45:44,959 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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) [2021-12-17 22:45:44,959 INFO L186 Difference]: Start difference. First operand has 320 places, 335 transitions, 772 flow. Second operand 6 states and 1937 transitions. [2021-12-17 22:45:44,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 352 transitions, 890 flow [2021-12-17 22:45:44,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 352 transitions, 890 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-17 22:45:44,964 INFO L242 Difference]: Finished difference. Result has 329 places, 341 transitions, 831 flow [2021-12-17 22:45:44,965 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=831, PETRI_PLACES=329, PETRI_TRANSITIONS=341} [2021-12-17 22:45:44,966 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 15 predicate places. [2021-12-17 22:45:44,966 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 341 transitions, 831 flow [2021-12-17 22:45:44,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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) [2021-12-17 22:45:44,967 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:44,967 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:44,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 22:45:44,967 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:44,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:44,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1215126355, now seen corresponding path program 1 times [2021-12-17 22:45:44,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:44,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789368288] [2021-12-17 22:45:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:44,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:45,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:45,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789368288] [2021-12-17 22:45:45,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789368288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:45,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:45,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:45:45,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385958183] [2021-12-17 22:45:45,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:45,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:45:45,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:45,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:45:45,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:45:45,013 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 353 [2021-12-17 22:45:45,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 341 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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) [2021-12-17 22:45:45,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:45,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 353 [2021-12-17 22:45:45,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:45,347 INFO L129 PetriNetUnfolder]: 216/2386 cut-off events. [2021-12-17 22:45:45,347 INFO L130 PetriNetUnfolder]: For 137/148 co-relation queries the response was YES. [2021-12-17 22:45:45,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2386 events. 216/2386 cut-off events. For 137/148 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 18509 event pairs, 47 based on Foata normal form. 0/2128 useless extension candidates. Maximal degree in co-relation 2889. Up to 176 conditions per place. [2021-12-17 22:45:45,361 INFO L132 encePairwiseOnDemand]: 342/353 looper letters, 29 selfloop transitions, 9 changer transitions 0/357 dead transitions. [2021-12-17 22:45:45,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 357 transitions, 944 flow [2021-12-17 22:45:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 22:45:45,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-17 22:45:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1936 transitions. [2021-12-17 22:45:45,365 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9140698772426817 [2021-12-17 22:45:45,365 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1936 transitions. [2021-12-17 22:45:45,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1936 transitions. [2021-12-17 22:45:45,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:45,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1936 transitions. [2021-12-17 22:45:45,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 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) [2021-12-17 22:45:45,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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) [2021-12-17 22:45:45,371 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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) [2021-12-17 22:45:45,371 INFO L186 Difference]: Start difference. First operand has 329 places, 341 transitions, 831 flow. Second operand 6 states and 1936 transitions. [2021-12-17 22:45:45,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 357 transitions, 944 flow [2021-12-17 22:45:45,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 357 transitions, 939 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:45:45,377 INFO L242 Difference]: Finished difference. Result has 337 places, 347 transitions, 885 flow [2021-12-17 22:45:45,378 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=885, PETRI_PLACES=337, PETRI_TRANSITIONS=347} [2021-12-17 22:45:45,378 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 23 predicate places. [2021-12-17 22:45:45,379 INFO L470 AbstractCegarLoop]: Abstraction has has 337 places, 347 transitions, 885 flow [2021-12-17 22:45:45,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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) [2021-12-17 22:45:45,379 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:45,379 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:45,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 22:45:45,380 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:45,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:45,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1786217094, now seen corresponding path program 1 times [2021-12-17 22:45:45,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:45,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970969112] [2021-12-17 22:45:45,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:45,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:45,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:45,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970969112] [2021-12-17 22:45:45,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970969112] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:45,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:45,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:45:45,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751482430] [2021-12-17 22:45:45,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:45,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:45:45,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:45,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:45:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:45:45,425 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 353 [2021-12-17 22:45:45,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 347 transitions, 885 flow. Second operand has 5 states, 5 states have (on average 324.4) internal successors, (1622), 5 states have internal predecessors, (1622), 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) [2021-12-17 22:45:45,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:45,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 353 [2021-12-17 22:45:45,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:45,635 INFO L129 PetriNetUnfolder]: 110/1717 cut-off events. [2021-12-17 22:45:45,635 INFO L130 PetriNetUnfolder]: For 75/87 co-relation queries the response was YES. [2021-12-17 22:45:45,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1717 events. 110/1717 cut-off events. For 75/87 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 11580 event pairs, 4 based on Foata normal form. 0/1581 useless extension candidates. Maximal degree in co-relation 2058. Up to 53 conditions per place. [2021-12-17 22:45:45,645 INFO L132 encePairwiseOnDemand]: 348/353 looper letters, 16 selfloop transitions, 4 changer transitions 0/351 dead transitions. [2021-12-17 22:45:45,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 351 transitions, 933 flow [2021-12-17 22:45:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 22:45:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-17 22:45:45,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1631 transitions. [2021-12-17 22:45:45,648 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9240793201133144 [2021-12-17 22:45:45,649 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1631 transitions. [2021-12-17 22:45:45,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1631 transitions. [2021-12-17 22:45:45,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:45,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1631 transitions. [2021-12-17 22:45:45,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 326.2) internal successors, (1631), 5 states have internal predecessors, (1631), 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) [2021-12-17 22:45:45,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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) [2021-12-17 22:45:45,654 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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) [2021-12-17 22:45:45,654 INFO L186 Difference]: Start difference. First operand has 337 places, 347 transitions, 885 flow. Second operand 5 states and 1631 transitions. [2021-12-17 22:45:45,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 351 transitions, 933 flow [2021-12-17 22:45:45,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 351 transitions, 928 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:45:45,660 INFO L242 Difference]: Finished difference. Result has 341 places, 348 transitions, 896 flow [2021-12-17 22:45:45,660 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=896, PETRI_PLACES=341, PETRI_TRANSITIONS=348} [2021-12-17 22:45:45,661 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 27 predicate places. [2021-12-17 22:45:45,661 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 348 transitions, 896 flow [2021-12-17 22:45:45,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 324.4) internal successors, (1622), 5 states have internal predecessors, (1622), 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) [2021-12-17 22:45:45,662 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:45,662 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:45,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 22:45:45,662 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash 454408965, now seen corresponding path program 1 times [2021-12-17 22:45:45,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:45,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690023986] [2021-12-17 22:45:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:45,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:45,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:45,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690023986] [2021-12-17 22:45:45,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690023986] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:45:45,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742719030] [2021-12-17 22:45:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:45,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:45:45,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:45:45,735 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) [2021-12-17 22:45:45,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 22:45:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:45,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 22:45:45,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:45:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:46,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 22:45:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:45:46,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742719030] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 22:45:46,506 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 22:45:46,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-12-17 22:45:46,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606185145] [2021-12-17 22:45:46,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 22:45:46,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-17 22:45:46,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-17 22:45:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-12-17 22:45:46,510 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 353 [2021-12-17 22:45:46,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 348 transitions, 896 flow. Second operand has 14 states, 14 states have (on average 323.64285714285717) internal successors, (4531), 14 states have internal predecessors, (4531), 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) [2021-12-17 22:45:46,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:46,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 353 [2021-12-17 22:45:46,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:46,796 INFO L129 PetriNetUnfolder]: 110/1726 cut-off events. [2021-12-17 22:45:46,796 INFO L130 PetriNetUnfolder]: For 76/88 co-relation queries the response was YES. [2021-12-17 22:45:46,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2096 conditions, 1726 events. 110/1726 cut-off events. For 76/88 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 11560 event pairs, 4 based on Foata normal form. 2/1593 useless extension candidates. Maximal degree in co-relation 2078. Up to 53 conditions per place. [2021-12-17 22:45:46,810 INFO L132 encePairwiseOnDemand]: 345/353 looper letters, 17 selfloop transitions, 11 changer transitions 0/358 dead transitions. [2021-12-17 22:45:46,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 358 transitions, 974 flow [2021-12-17 22:45:46,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-17 22:45:46,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-17 22:45:46,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3561 transitions. [2021-12-17 22:45:46,815 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9170744269894412 [2021-12-17 22:45:46,815 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3561 transitions. [2021-12-17 22:45:46,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3561 transitions. [2021-12-17 22:45:46,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:46,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3561 transitions. [2021-12-17 22:45:46,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 323.72727272727275) internal successors, (3561), 11 states have internal predecessors, (3561), 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) [2021-12-17 22:45:46,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 353.0) internal successors, (4236), 12 states have internal predecessors, (4236), 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) [2021-12-17 22:45:46,826 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 353.0) internal successors, (4236), 12 states have internal predecessors, (4236), 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) [2021-12-17 22:45:46,826 INFO L186 Difference]: Start difference. First operand has 341 places, 348 transitions, 896 flow. Second operand 11 states and 3561 transitions. [2021-12-17 22:45:46,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 358 transitions, 974 flow [2021-12-17 22:45:46,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 358 transitions, 968 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-17 22:45:46,831 INFO L242 Difference]: Finished difference. Result has 351 places, 354 transitions, 945 flow [2021-12-17 22:45:46,832 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=945, PETRI_PLACES=351, PETRI_TRANSITIONS=354} [2021-12-17 22:45:46,832 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 37 predicate places. [2021-12-17 22:45:46,832 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 354 transitions, 945 flow [2021-12-17 22:45:46,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 323.64285714285717) internal successors, (4531), 14 states have internal predecessors, (4531), 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) [2021-12-17 22:45:46,834 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:46,834 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:46,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 22:45:47,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:45:47,052 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:47,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:47,053 INFO L85 PathProgramCache]: Analyzing trace with hash 266249057, now seen corresponding path program 2 times [2021-12-17 22:45:47,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:47,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479031281] [2021-12-17 22:45:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:47,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:47,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:47,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479031281] [2021-12-17 22:45:47,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479031281] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:47,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:47,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 22:45:47,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093798432] [2021-12-17 22:45:47,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:47,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 22:45:47,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:47,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 22:45:47,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 22:45:47,147 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 353 [2021-12-17 22:45:47,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 354 transitions, 945 flow. Second operand has 8 states, 8 states have (on average 309.125) internal successors, (2473), 8 states have internal predecessors, (2473), 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) [2021-12-17 22:45:47,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:47,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 353 [2021-12-17 22:45:47,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:47,466 INFO L129 PetriNetUnfolder]: 111/1830 cut-off events. [2021-12-17 22:45:47,466 INFO L130 PetriNetUnfolder]: For 78/90 co-relation queries the response was YES. [2021-12-17 22:45:47,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2404 conditions, 1830 events. 111/1830 cut-off events. For 78/90 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12266 event pairs, 4 based on Foata normal form. 8/1703 useless extension candidates. Maximal degree in co-relation 2383. Up to 128 conditions per place. [2021-12-17 22:45:47,481 INFO L132 encePairwiseOnDemand]: 344/353 looper letters, 35 selfloop transitions, 4 changer transitions 5/369 dead transitions. [2021-12-17 22:45:47,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 369 transitions, 1063 flow [2021-12-17 22:45:47,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:45:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:45:47,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2493 transitions. [2021-12-17 22:45:47,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827903682719547 [2021-12-17 22:45:47,486 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2493 transitions. [2021-12-17 22:45:47,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2493 transitions. [2021-12-17 22:45:47,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:47,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2493 transitions. [2021-12-17 22:45:47,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 311.625) internal successors, (2493), 8 states have internal predecessors, (2493), 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) [2021-12-17 22:45:47,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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) [2021-12-17 22:45:47,493 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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) [2021-12-17 22:45:47,494 INFO L186 Difference]: Start difference. First operand has 351 places, 354 transitions, 945 flow. Second operand 8 states and 2493 transitions. [2021-12-17 22:45:47,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 369 transitions, 1063 flow [2021-12-17 22:45:47,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 369 transitions, 1054 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-12-17 22:45:47,500 INFO L242 Difference]: Finished difference. Result has 361 places, 357 transitions, 972 flow [2021-12-17 22:45:47,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=972, PETRI_PLACES=361, PETRI_TRANSITIONS=357} [2021-12-17 22:45:47,501 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 47 predicate places. [2021-12-17 22:45:47,501 INFO L470 AbstractCegarLoop]: Abstraction has has 361 places, 357 transitions, 972 flow [2021-12-17 22:45:47,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 309.125) internal successors, (2473), 8 states have internal predecessors, (2473), 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) [2021-12-17 22:45:47,502 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:47,502 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:47,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 22:45:47,502 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:47,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1901665691, now seen corresponding path program 1 times [2021-12-17 22:45:47,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:47,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361995781] [2021-12-17 22:45:47,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:47,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:47,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361995781] [2021-12-17 22:45:47,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361995781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:47,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:47,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 22:45:47,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742830047] [2021-12-17 22:45:47,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:47,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 22:45:47,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:47,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 22:45:47,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 22:45:47,546 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 353 [2021-12-17 22:45:47,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 357 transitions, 972 flow. Second operand has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2021-12-17 22:45:47,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:47,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 353 [2021-12-17 22:45:47,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:47,947 INFO L129 PetriNetUnfolder]: 293/2938 cut-off events. [2021-12-17 22:45:47,948 INFO L130 PetriNetUnfolder]: For 212/223 co-relation queries the response was YES. [2021-12-17 22:45:47,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3962 conditions, 2938 events. 293/2938 cut-off events. For 212/223 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 23947 event pairs, 64 based on Foata normal form. 0/2626 useless extension candidates. Maximal degree in co-relation 3935. Up to 196 conditions per place. [2021-12-17 22:45:47,974 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 26 selfloop transitions, 11 changer transitions 0/371 dead transitions. [2021-12-17 22:45:47,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 371 transitions, 1077 flow [2021-12-17 22:45:47,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 22:45:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-17 22:45:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1298 transitions. [2021-12-17 22:45:47,977 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9192634560906515 [2021-12-17 22:45:47,977 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1298 transitions. [2021-12-17 22:45:47,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1298 transitions. [2021-12-17 22:45:47,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:47,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1298 transitions. [2021-12-17 22:45:47,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.5) internal successors, (1298), 4 states have internal predecessors, (1298), 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) [2021-12-17 22:45:47,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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) [2021-12-17 22:45:47,981 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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) [2021-12-17 22:45:47,981 INFO L186 Difference]: Start difference. First operand has 361 places, 357 transitions, 972 flow. Second operand 4 states and 1298 transitions. [2021-12-17 22:45:47,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 371 transitions, 1077 flow [2021-12-17 22:45:47,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 371 transitions, 1067 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-12-17 22:45:47,989 INFO L242 Difference]: Finished difference. Result has 358 places, 363 transitions, 1032 flow [2021-12-17 22:45:47,989 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1032, PETRI_PLACES=358, PETRI_TRANSITIONS=363} [2021-12-17 22:45:47,990 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 44 predicate places. [2021-12-17 22:45:47,990 INFO L470 AbstractCegarLoop]: Abstraction has has 358 places, 363 transitions, 1032 flow [2021-12-17 22:45:47,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2021-12-17 22:45:47,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:47,991 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:47,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 22:45:47,991 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:47,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash -227916070, now seen corresponding path program 1 times [2021-12-17 22:45:47,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:47,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025322785] [2021-12-17 22:45:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:47,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:48,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:48,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025322785] [2021-12-17 22:45:48,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025322785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:48,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:48,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 22:45:48,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626633280] [2021-12-17 22:45:48,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:48,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 22:45:48,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:48,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 22:45:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 22:45:48,027 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 353 [2021-12-17 22:45:48,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 363 transitions, 1032 flow. Second operand has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2021-12-17 22:45:48,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:48,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 353 [2021-12-17 22:45:48,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:48,314 INFO L129 PetriNetUnfolder]: 178/2081 cut-off events. [2021-12-17 22:45:48,314 INFO L130 PetriNetUnfolder]: For 169/305 co-relation queries the response was YES. [2021-12-17 22:45:48,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2879 conditions, 2081 events. 178/2081 cut-off events. For 169/305 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14243 event pairs, 37 based on Foata normal form. 10/1960 useless extension candidates. Maximal degree in co-relation 2854. Up to 136 conditions per place. [2021-12-17 22:45:48,329 INFO L132 encePairwiseOnDemand]: 348/353 looper letters, 35 selfloop transitions, 4 changer transitions 0/372 dead transitions. [2021-12-17 22:45:48,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 372 transitions, 1135 flow [2021-12-17 22:45:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 22:45:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-17 22:45:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1611 transitions. [2021-12-17 22:45:48,331 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9127478753541076 [2021-12-17 22:45:48,332 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1611 transitions. [2021-12-17 22:45:48,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1611 transitions. [2021-12-17 22:45:48,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:48,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1611 transitions. [2021-12-17 22:45:48,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 322.2) internal successors, (1611), 5 states have internal predecessors, (1611), 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) [2021-12-17 22:45:48,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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) [2021-12-17 22:45:48,336 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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) [2021-12-17 22:45:48,336 INFO L186 Difference]: Start difference. First operand has 358 places, 363 transitions, 1032 flow. Second operand 5 states and 1611 transitions. [2021-12-17 22:45:48,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 372 transitions, 1135 flow [2021-12-17 22:45:48,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 372 transitions, 1133 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-12-17 22:45:48,343 INFO L242 Difference]: Finished difference. Result has 363 places, 363 transitions, 1044 flow [2021-12-17 22:45:48,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1044, PETRI_PLACES=363, PETRI_TRANSITIONS=363} [2021-12-17 22:45:48,344 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 49 predicate places. [2021-12-17 22:45:48,344 INFO L470 AbstractCegarLoop]: Abstraction has has 363 places, 363 transitions, 1044 flow [2021-12-17 22:45:48,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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) [2021-12-17 22:45:48,344 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:48,344 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:48,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 22:45:48,345 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:48,345 INFO L85 PathProgramCache]: Analyzing trace with hash -731169643, now seen corresponding path program 1 times [2021-12-17 22:45:48,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:48,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951182119] [2021-12-17 22:45:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:48,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:48,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:48,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951182119] [2021-12-17 22:45:48,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951182119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:48,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:48,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:45:48,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974667814] [2021-12-17 22:45:48,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:48,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:45:48,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:45:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:45:48,388 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 353 [2021-12-17 22:45:48,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 363 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 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) [2021-12-17 22:45:48,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:48,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 353 [2021-12-17 22:45:48,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:49,584 INFO L129 PetriNetUnfolder]: 1787/9609 cut-off events. [2021-12-17 22:45:49,584 INFO L130 PetriNetUnfolder]: For 3050/3062 co-relation queries the response was YES. [2021-12-17 22:45:49,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15608 conditions, 9609 events. 1787/9609 cut-off events. For 3050/3062 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 98130 event pairs, 691 based on Foata normal form. 31/8775 useless extension candidates. Maximal degree in co-relation 15581. Up to 1901 conditions per place. [2021-12-17 22:45:49,656 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 184 selfloop transitions, 36 changer transitions 0/527 dead transitions. [2021-12-17 22:45:49,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 527 transitions, 2115 flow [2021-12-17 22:45:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-17 22:45:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-17 22:45:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5234 transitions. [2021-12-17 22:45:49,664 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.872187968671888 [2021-12-17 22:45:49,664 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5234 transitions. [2021-12-17 22:45:49,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5234 transitions. [2021-12-17 22:45:49,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:49,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5234 transitions. [2021-12-17 22:45:49,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 307.88235294117646) internal successors, (5234), 17 states have internal predecessors, (5234), 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) [2021-12-17 22:45:49,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 353.0) internal successors, (6354), 18 states have internal predecessors, (6354), 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) [2021-12-17 22:45:49,682 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 353.0) internal successors, (6354), 18 states have internal predecessors, (6354), 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) [2021-12-17 22:45:49,682 INFO L186 Difference]: Start difference. First operand has 363 places, 363 transitions, 1044 flow. Second operand 17 states and 5234 transitions. [2021-12-17 22:45:49,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 527 transitions, 2115 flow [2021-12-17 22:45:49,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 527 transitions, 2093 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-12-17 22:45:49,702 INFO L242 Difference]: Finished difference. Result has 385 places, 391 transitions, 1302 flow [2021-12-17 22:45:49,703 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1302, PETRI_PLACES=385, PETRI_TRANSITIONS=391} [2021-12-17 22:45:49,704 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 71 predicate places. [2021-12-17 22:45:49,704 INFO L470 AbstractCegarLoop]: Abstraction has has 385 places, 391 transitions, 1302 flow [2021-12-17 22:45:49,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 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) [2021-12-17 22:45:49,704 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:49,705 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:49,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 22:45:49,705 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:49,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:49,705 INFO L85 PathProgramCache]: Analyzing trace with hash -423907830, now seen corresponding path program 1 times [2021-12-17 22:45:49,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:49,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296600549] [2021-12-17 22:45:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:49,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:49,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:49,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296600549] [2021-12-17 22:45:49,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296600549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:49,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:49,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:45:49,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571873298] [2021-12-17 22:45:49,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:49,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:45:49,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:49,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:45:49,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:45:49,749 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 353 [2021-12-17 22:45:49,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 391 transitions, 1302 flow. Second operand has 5 states, 5 states have (on average 316.8) internal successors, (1584), 5 states have internal predecessors, (1584), 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) [2021-12-17 22:45:49,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:49,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 353 [2021-12-17 22:45:49,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:50,099 INFO L129 PetriNetUnfolder]: 229/2435 cut-off events. [2021-12-17 22:45:50,100 INFO L130 PetriNetUnfolder]: For 693/821 co-relation queries the response was YES. [2021-12-17 22:45:50,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3658 conditions, 2435 events. 229/2435 cut-off events. For 693/821 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 17296 event pairs, 40 based on Foata normal form. 24/2300 useless extension candidates. Maximal degree in co-relation 3625. Up to 164 conditions per place. [2021-12-17 22:45:50,119 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 44 selfloop transitions, 19 changer transitions 0/410 dead transitions. [2021-12-17 22:45:50,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 410 transitions, 1485 flow [2021-12-17 22:45:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:45:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:45:50,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2239 transitions. [2021-12-17 22:45:50,122 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9061108862808579 [2021-12-17 22:45:50,122 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2239 transitions. [2021-12-17 22:45:50,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2239 transitions. [2021-12-17 22:45:50,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:50,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2239 transitions. [2021-12-17 22:45:50,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 319.85714285714283) internal successors, (2239), 7 states have internal predecessors, (2239), 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) [2021-12-17 22:45:50,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:45:50,129 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:45:50,129 INFO L186 Difference]: Start difference. First operand has 385 places, 391 transitions, 1302 flow. Second operand 7 states and 2239 transitions. [2021-12-17 22:45:50,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 410 transitions, 1485 flow [2021-12-17 22:45:50,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 410 transitions, 1451 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-12-17 22:45:50,137 INFO L242 Difference]: Finished difference. Result has 390 places, 397 transitions, 1358 flow [2021-12-17 22:45:50,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1358, PETRI_PLACES=390, PETRI_TRANSITIONS=397} [2021-12-17 22:45:50,138 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 76 predicate places. [2021-12-17 22:45:50,139 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 397 transitions, 1358 flow [2021-12-17 22:45:50,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 316.8) internal successors, (1584), 5 states have internal predecessors, (1584), 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) [2021-12-17 22:45:50,139 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:50,139 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:50,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 22:45:50,139 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:50,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:50,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1856360310, now seen corresponding path program 1 times [2021-12-17 22:45:50,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:50,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724976296] [2021-12-17 22:45:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:50,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-17 22:45:50,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:50,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724976296] [2021-12-17 22:45:50,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724976296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:50,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:50,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:45:50,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302601593] [2021-12-17 22:45:50,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:50,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:45:50,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:45:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:45:50,192 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 353 [2021-12-17 22:45:50,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 397 transitions, 1358 flow. Second operand has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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) [2021-12-17 22:45:50,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:50,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 353 [2021-12-17 22:45:50,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:50,586 INFO L129 PetriNetUnfolder]: 270/2864 cut-off events. [2021-12-17 22:45:50,586 INFO L130 PetriNetUnfolder]: For 752/879 co-relation queries the response was YES. [2021-12-17 22:45:50,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4438 conditions, 2864 events. 270/2864 cut-off events. For 752/879 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 21838 event pairs, 50 based on Foata normal form. 17/2691 useless extension candidates. Maximal degree in co-relation 4402. Up to 228 conditions per place. [2021-12-17 22:45:50,617 INFO L132 encePairwiseOnDemand]: 337/353 looper letters, 40 selfloop transitions, 17 changer transitions 0/423 dead transitions. [2021-12-17 22:45:50,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 423 transitions, 1542 flow [2021-12-17 22:45:50,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:45:50,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:45:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2551 transitions. [2021-12-17 22:45:50,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9033286118980169 [2021-12-17 22:45:50,625 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2551 transitions. [2021-12-17 22:45:50,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2551 transitions. [2021-12-17 22:45:50,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:50,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2551 transitions. [2021-12-17 22:45:50,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 318.875) internal successors, (2551), 8 states have internal predecessors, (2551), 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) [2021-12-17 22:45:50,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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) [2021-12-17 22:45:50,633 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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) [2021-12-17 22:45:50,633 INFO L186 Difference]: Start difference. First operand has 390 places, 397 transitions, 1358 flow. Second operand 8 states and 2551 transitions. [2021-12-17 22:45:50,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 423 transitions, 1542 flow [2021-12-17 22:45:50,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 423 transitions, 1524 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-12-17 22:45:50,644 INFO L242 Difference]: Finished difference. Result has 399 places, 407 transitions, 1449 flow [2021-12-17 22:45:50,644 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1340, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1449, PETRI_PLACES=399, PETRI_TRANSITIONS=407} [2021-12-17 22:45:50,645 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 85 predicate places. [2021-12-17 22:45:50,645 INFO L470 AbstractCegarLoop]: Abstraction has has 399 places, 407 transitions, 1449 flow [2021-12-17 22:45:50,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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) [2021-12-17 22:45:50,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:50,646 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:50,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 22:45:50,646 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:50,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash -38920124, now seen corresponding path program 1 times [2021-12-17 22:45:50,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:50,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074377294] [2021-12-17 22:45:50,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:50,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:50,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:50,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074377294] [2021-12-17 22:45:50,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074377294] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:50,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:50,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:45:50,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729053256] [2021-12-17 22:45:50,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:50,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:45:50,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:50,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:45:50,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:45:50,722 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 353 [2021-12-17 22:45:50,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 407 transitions, 1449 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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) [2021-12-17 22:45:50,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:50,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 353 [2021-12-17 22:45:50,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:52,539 INFO L129 PetriNetUnfolder]: 1317/11822 cut-off events. [2021-12-17 22:45:52,539 INFO L130 PetriNetUnfolder]: For 4086/4151 co-relation queries the response was YES. [2021-12-17 22:45:52,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18163 conditions, 11822 events. 1317/11822 cut-off events. For 4086/4151 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 133267 event pairs, 377 based on Foata normal form. 10/10854 useless extension candidates. Maximal degree in co-relation 18122. Up to 970 conditions per place. [2021-12-17 22:45:52,710 INFO L132 encePairwiseOnDemand]: 349/353 looper letters, 52 selfloop transitions, 3 changer transitions 0/425 dead transitions. [2021-12-17 22:45:52,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 425 transitions, 1618 flow [2021-12-17 22:45:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:45:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:45:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2021-12-17 22:45:52,713 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9159584513692163 [2021-12-17 22:45:52,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 970 transitions. [2021-12-17 22:45:52,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 970 transitions. [2021-12-17 22:45:52,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:52,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 970 transitions. [2021-12-17 22:45:52,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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) [2021-12-17 22:45:52,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:45:52,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:45:52,716 INFO L186 Difference]: Start difference. First operand has 399 places, 407 transitions, 1449 flow. Second operand 3 states and 970 transitions. [2021-12-17 22:45:52,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 425 transitions, 1618 flow [2021-12-17 22:45:52,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 425 transitions, 1605 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-17 22:45:52,753 INFO L242 Difference]: Finished difference. Result has 400 places, 409 transitions, 1458 flow [2021-12-17 22:45:52,753 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1458, PETRI_PLACES=400, PETRI_TRANSITIONS=409} [2021-12-17 22:45:52,754 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 86 predicate places. [2021-12-17 22:45:52,754 INFO L470 AbstractCegarLoop]: Abstraction has has 400 places, 409 transitions, 1458 flow [2021-12-17 22:45:52,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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) [2021-12-17 22:45:52,754 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:52,755 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:52,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 22:45:52,755 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1289922524, now seen corresponding path program 1 times [2021-12-17 22:45:52,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:52,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360565379] [2021-12-17 22:45:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:52,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:52,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:52,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360565379] [2021-12-17 22:45:52,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360565379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:52,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:52,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:45:52,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556407493] [2021-12-17 22:45:52,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:52,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:45:52,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:52,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:45:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:45:52,804 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 353 [2021-12-17 22:45:52,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 409 transitions, 1458 flow. Second operand has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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) [2021-12-17 22:45:52,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:52,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 353 [2021-12-17 22:45:52,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:53,562 INFO L129 PetriNetUnfolder]: 430/5025 cut-off events. [2021-12-17 22:45:53,563 INFO L130 PetriNetUnfolder]: For 1306/1598 co-relation queries the response was YES. [2021-12-17 22:45:53,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8064 conditions, 5025 events. 430/5025 cut-off events. For 1306/1598 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 44356 event pairs, 88 based on Foata normal form. 42/4801 useless extension candidates. Maximal degree in co-relation 8022. Up to 468 conditions per place. [2021-12-17 22:45:53,642 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 49 selfloop transitions, 13 changer transitions 0/433 dead transitions. [2021-12-17 22:45:53,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 433 transitions, 1671 flow [2021-12-17 22:45:53,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:45:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:45:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2248 transitions. [2021-12-17 22:45:53,645 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9097531363820316 [2021-12-17 22:45:53,645 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2248 transitions. [2021-12-17 22:45:53,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2248 transitions. [2021-12-17 22:45:53,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:53,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2248 transitions. [2021-12-17 22:45:53,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 321.14285714285717) internal successors, (2248), 7 states have internal predecessors, (2248), 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) [2021-12-17 22:45:53,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:45:53,652 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:45:53,652 INFO L186 Difference]: Start difference. First operand has 400 places, 409 transitions, 1458 flow. Second operand 7 states and 2248 transitions. [2021-12-17 22:45:53,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 433 transitions, 1671 flow [2021-12-17 22:45:53,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 433 transitions, 1665 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-17 22:45:53,668 INFO L242 Difference]: Finished difference. Result has 409 places, 419 transitions, 1565 flow [2021-12-17 22:45:53,669 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1565, PETRI_PLACES=409, PETRI_TRANSITIONS=419} [2021-12-17 22:45:53,669 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 95 predicate places. [2021-12-17 22:45:53,669 INFO L470 AbstractCegarLoop]: Abstraction has has 409 places, 419 transitions, 1565 flow [2021-12-17 22:45:53,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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) [2021-12-17 22:45:53,670 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:53,670 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:53,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 22:45:53,671 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:53,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:53,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1054611153, now seen corresponding path program 1 times [2021-12-17 22:45:53,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:53,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421537868] [2021-12-17 22:45:53,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:53,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-17 22:45:53,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:53,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421537868] [2021-12-17 22:45:53,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421537868] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:53,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:53,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:45:53,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213199828] [2021-12-17 22:45:53,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:53,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:45:53,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:45:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:45:53,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 353 [2021-12-17 22:45:53,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 419 transitions, 1565 flow. Second operand has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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) [2021-12-17 22:45:53,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:53,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 353 [2021-12-17 22:45:53,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:55,177 INFO L129 PetriNetUnfolder]: 1034/9391 cut-off events. [2021-12-17 22:45:55,177 INFO L130 PetriNetUnfolder]: For 3419/3457 co-relation queries the response was YES. [2021-12-17 22:45:55,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15122 conditions, 9391 events. 1034/9391 cut-off events. For 3419/3457 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 106061 event pairs, 299 based on Foata normal form. 28/8485 useless extension candidates. Maximal degree in co-relation 15075. Up to 1027 conditions per place. [2021-12-17 22:45:55,282 INFO L132 encePairwiseOnDemand]: 337/353 looper letters, 39 selfloop transitions, 17 changer transitions 0/444 dead transitions. [2021-12-17 22:45:55,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 444 transitions, 1744 flow [2021-12-17 22:45:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 22:45:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-17 22:45:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2550 transitions. [2021-12-17 22:45:55,286 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9029745042492918 [2021-12-17 22:45:55,286 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2550 transitions. [2021-12-17 22:45:55,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2550 transitions. [2021-12-17 22:45:55,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:55,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2550 transitions. [2021-12-17 22:45:55,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 318.75) internal successors, (2550), 8 states have internal predecessors, (2550), 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) [2021-12-17 22:45:55,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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) [2021-12-17 22:45:55,293 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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) [2021-12-17 22:45:55,293 INFO L186 Difference]: Start difference. First operand has 409 places, 419 transitions, 1565 flow. Second operand 8 states and 2550 transitions. [2021-12-17 22:45:55,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 444 transitions, 1744 flow [2021-12-17 22:45:55,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 444 transitions, 1738 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-12-17 22:45:55,318 INFO L242 Difference]: Finished difference. Result has 420 places, 429 transitions, 1668 flow [2021-12-17 22:45:55,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1559, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1668, PETRI_PLACES=420, PETRI_TRANSITIONS=429} [2021-12-17 22:45:55,319 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 106 predicate places. [2021-12-17 22:45:55,319 INFO L470 AbstractCegarLoop]: Abstraction has has 420 places, 429 transitions, 1668 flow [2021-12-17 22:45:55,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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) [2021-12-17 22:45:55,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:55,320 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:55,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 22:45:55,320 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash 224451925, now seen corresponding path program 1 times [2021-12-17 22:45:55,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:55,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653013479] [2021-12-17 22:45:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:55,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:55,356 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:55,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:55,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653013479] [2021-12-17 22:45:55,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653013479] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:55,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:55,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 22:45:55,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972247711] [2021-12-17 22:45:55,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:55,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 22:45:55,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:55,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 22:45:55,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 22:45:55,359 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 353 [2021-12-17 22:45:55,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 429 transitions, 1668 flow. Second operand has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 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) [2021-12-17 22:45:55,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:55,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 353 [2021-12-17 22:45:55,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:45:56,936 INFO L129 PetriNetUnfolder]: 1164/9843 cut-off events. [2021-12-17 22:45:56,936 INFO L130 PetriNetUnfolder]: For 4994/5032 co-relation queries the response was YES. [2021-12-17 22:45:57,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17036 conditions, 9843 events. 1164/9843 cut-off events. For 4994/5032 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 113044 event pairs, 416 based on Foata normal form. 74/8901 useless extension candidates. Maximal degree in co-relation 16984. Up to 1168 conditions per place. [2021-12-17 22:45:57,071 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 46 selfloop transitions, 19 changer transitions 0/446 dead transitions. [2021-12-17 22:45:57,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 446 transitions, 1854 flow [2021-12-17 22:45:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:45:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:45:57,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2238 transitions. [2021-12-17 22:45:57,074 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.905706191825172 [2021-12-17 22:45:57,074 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2238 transitions. [2021-12-17 22:45:57,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2238 transitions. [2021-12-17 22:45:57,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:45:57,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2238 transitions. [2021-12-17 22:45:57,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 319.7142857142857) internal successors, (2238), 7 states have internal predecessors, (2238), 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) [2021-12-17 22:45:57,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:45:57,080 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:45:57,080 INFO L186 Difference]: Start difference. First operand has 420 places, 429 transitions, 1668 flow. Second operand 7 states and 2238 transitions. [2021-12-17 22:45:57,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 446 transitions, 1854 flow [2021-12-17 22:45:57,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 446 transitions, 1841 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-17 22:45:57,112 INFO L242 Difference]: Finished difference. Result has 426 places, 435 transitions, 1751 flow [2021-12-17 22:45:57,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1751, PETRI_PLACES=426, PETRI_TRANSITIONS=435} [2021-12-17 22:45:57,113 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 112 predicate places. [2021-12-17 22:45:57,113 INFO L470 AbstractCegarLoop]: Abstraction has has 426 places, 435 transitions, 1751 flow [2021-12-17 22:45:57,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 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) [2021-12-17 22:45:57,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:45:57,114 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:45:57,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 22:45:57,114 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:45:57,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:45:57,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1161617543, now seen corresponding path program 1 times [2021-12-17 22:45:57,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:45:57,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535372034] [2021-12-17 22:45:57,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:45:57,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:45:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:45:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:45:57,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:45:57,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535372034] [2021-12-17 22:45:57,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535372034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:45:57,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:45:57,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 22:45:57,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055972308] [2021-12-17 22:45:57,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:45:57,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:45:57,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:45:57,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:45:57,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:45:57,143 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 353 [2021-12-17 22:45:57,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 435 transitions, 1751 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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) [2021-12-17 22:45:57,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:45:57,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 353 [2021-12-17 22:45:57,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:46:02,030 INFO L129 PetriNetUnfolder]: 3174/27589 cut-off events. [2021-12-17 22:46:02,031 INFO L130 PetriNetUnfolder]: For 16718/18283 co-relation queries the response was YES. [2021-12-17 22:46:02,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48080 conditions, 27589 events. 3174/27589 cut-off events. For 16718/18283 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 385483 event pairs, 1289 based on Foata normal form. 48/25580 useless extension candidates. Maximal degree in co-relation 48025. Up to 3009 conditions per place. [2021-12-17 22:46:02,420 INFO L132 encePairwiseOnDemand]: 349/353 looper letters, 51 selfloop transitions, 3 changer transitions 0/452 dead transitions. [2021-12-17 22:46:02,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 452 transitions, 1919 flow [2021-12-17 22:46:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:46:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:46:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 969 transitions. [2021-12-17 22:46:02,440 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9150141643059491 [2021-12-17 22:46:02,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 969 transitions. [2021-12-17 22:46:02,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 969 transitions. [2021-12-17 22:46:02,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:46:02,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 969 transitions. [2021-12-17 22:46:02,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 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) [2021-12-17 22:46:02,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:46:02,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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) [2021-12-17 22:46:02,443 INFO L186 Difference]: Start difference. First operand has 426 places, 435 transitions, 1751 flow. Second operand 3 states and 969 transitions. [2021-12-17 22:46:02,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 452 transitions, 1919 flow [2021-12-17 22:46:02,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 452 transitions, 1895 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-12-17 22:46:02,659 INFO L242 Difference]: Finished difference. Result has 428 places, 437 transitions, 1749 flow [2021-12-17 22:46:02,659 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1727, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1749, PETRI_PLACES=428, PETRI_TRANSITIONS=437} [2021-12-17 22:46:02,659 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 114 predicate places. [2021-12-17 22:46:02,660 INFO L470 AbstractCegarLoop]: Abstraction has has 428 places, 437 transitions, 1749 flow [2021-12-17 22:46:02,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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) [2021-12-17 22:46:02,660 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:46:02,660 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:46:02,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-17 22:46:02,661 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:46:02,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:46:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1604949299, now seen corresponding path program 1 times [2021-12-17 22:46:02,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:46:02,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908468193] [2021-12-17 22:46:02,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:02,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:46:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:02,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:46:02,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908468193] [2021-12-17 22:46:02,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908468193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:46:02,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:46:02,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:46:02,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789186526] [2021-12-17 22:46:02,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:46:02,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:46:02,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:46:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:46:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:46:02,707 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 353 [2021-12-17 22:46:02,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 437 transitions, 1749 flow. Second operand has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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) [2021-12-17 22:46:02,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:46:02,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 353 [2021-12-17 22:46:02,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:46:06,464 INFO L129 PetriNetUnfolder]: 1878/18064 cut-off events. [2021-12-17 22:46:06,464 INFO L130 PetriNetUnfolder]: For 8872/8947 co-relation queries the response was YES. [2021-12-17 22:46:06,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31458 conditions, 18064 events. 1878/18064 cut-off events. For 8872/8947 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 239582 event pairs, 673 based on Foata normal form. 107/16639 useless extension candidates. Maximal degree in co-relation 31401. Up to 2346 conditions per place. [2021-12-17 22:46:06,757 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 48 selfloop transitions, 13 changer transitions 0/460 dead transitions. [2021-12-17 22:46:06,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 460 transitions, 1957 flow [2021-12-17 22:46:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:46:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:46:06,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2247 transitions. [2021-12-17 22:46:06,783 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9093484419263456 [2021-12-17 22:46:06,783 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2247 transitions. [2021-12-17 22:46:06,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2247 transitions. [2021-12-17 22:46:06,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:46:06,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2247 transitions. [2021-12-17 22:46:06,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2021-12-17 22:46:06,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:46:06,788 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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) [2021-12-17 22:46:06,788 INFO L186 Difference]: Start difference. First operand has 428 places, 437 transitions, 1749 flow. Second operand 7 states and 2247 transitions. [2021-12-17 22:46:06,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 460 transitions, 1957 flow [2021-12-17 22:46:06,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 460 transitions, 1951 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-17 22:46:06,857 INFO L242 Difference]: Finished difference. Result has 437 places, 447 transitions, 1856 flow [2021-12-17 22:46:06,858 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1743, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1856, PETRI_PLACES=437, PETRI_TRANSITIONS=447} [2021-12-17 22:46:06,858 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 123 predicate places. [2021-12-17 22:46:06,858 INFO L470 AbstractCegarLoop]: Abstraction has has 437 places, 447 transitions, 1856 flow [2021-12-17 22:46:06,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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) [2021-12-17 22:46:06,859 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:46:06,859 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:46:06,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 22:46:06,860 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:46:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:46:06,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1570120376, now seen corresponding path program 1 times [2021-12-17 22:46:06,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:46:06,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69652127] [2021-12-17 22:46:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:06,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:46:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:06,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:46:06,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69652127] [2021-12-17 22:46:06,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69652127] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:46:06,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288797182] [2021-12-17 22:46:06,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:06,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:46:06,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:46:06,942 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) [2021-12-17 22:46:06,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 22:46:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:07,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-17 22:46:07,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:46:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:07,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 22:46:07,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288797182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:46:07,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 22:46:07,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2021-12-17 22:46:07,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496298236] [2021-12-17 22:46:07,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:46:07,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:46:07,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:46:07,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:46:07,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 22:46:07,402 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 353 [2021-12-17 22:46:07,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 447 transitions, 1856 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2021-12-17 22:46:07,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:46:07,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 353 [2021-12-17 22:46:07,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:46:08,498 INFO L129 PetriNetUnfolder]: 439/5629 cut-off events. [2021-12-17 22:46:08,498 INFO L130 PetriNetUnfolder]: For 2940/5712 co-relation queries the response was YES. [2021-12-17 22:46:08,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10190 conditions, 5629 events. 439/5629 cut-off events. For 2940/5712 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 52606 event pairs, 116 based on Foata normal form. 45/5382 useless extension candidates. Maximal degree in co-relation 10128. Up to 403 conditions per place. [2021-12-17 22:46:08,584 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 59 selfloop transitions, 19 changer transitions 0/449 dead transitions. [2021-12-17 22:46:08,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 449 transitions, 1943 flow [2021-12-17 22:46:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:46:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:46:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2736 transitions. [2021-12-17 22:46:08,587 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8611898016997167 [2021-12-17 22:46:08,587 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2736 transitions. [2021-12-17 22:46:08,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2736 transitions. [2021-12-17 22:46:08,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:46:08,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2736 transitions. [2021-12-17 22:46:08,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 304.0) internal successors, (2736), 9 states have internal predecessors, (2736), 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) [2021-12-17 22:46:08,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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) [2021-12-17 22:46:08,592 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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) [2021-12-17 22:46:08,592 INFO L186 Difference]: Start difference. First operand has 437 places, 447 transitions, 1856 flow. Second operand 9 states and 2736 transitions. [2021-12-17 22:46:08,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 449 transitions, 1943 flow [2021-12-17 22:46:08,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 449 transitions, 1877 flow, removed 23 selfloop flow, removed 7 redundant places. [2021-12-17 22:46:08,618 INFO L242 Difference]: Finished difference. Result has 440 places, 434 transitions, 1743 flow [2021-12-17 22:46:08,618 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1743, PETRI_PLACES=440, PETRI_TRANSITIONS=434} [2021-12-17 22:46:08,619 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 126 predicate places. [2021-12-17 22:46:08,619 INFO L470 AbstractCegarLoop]: Abstraction has has 440 places, 434 transitions, 1743 flow [2021-12-17 22:46:08,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2021-12-17 22:46:08,619 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:46:08,619 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:46:08,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-17 22:46:08,836 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,SelfDestructingSolverStorable20 [2021-12-17 22:46:08,837 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:46:08,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:46:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash 625962326, now seen corresponding path program 1 times [2021-12-17 22:46:08,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:46:08,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501341486] [2021-12-17 22:46:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:08,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:46:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:08,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:46:08,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501341486] [2021-12-17 22:46:08,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501341486] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 22:46:08,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448786925] [2021-12-17 22:46:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:08,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:46:08,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:46:08,918 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) [2021-12-17 22:46:08,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 22:46:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:09,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-17 22:46:09,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 22:46:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:09,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 22:46:09,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448786925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:46:09,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 22:46:09,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2021-12-17 22:46:09,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429914462] [2021-12-17 22:46:09,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:46:09,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:46:09,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:46:09,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:46:09,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-17 22:46:09,366 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 353 [2021-12-17 22:46:09,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 434 transitions, 1743 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2021-12-17 22:46:09,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:46:09,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 353 [2021-12-17 22:46:09,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:46:10,727 INFO L129 PetriNetUnfolder]: 1096/6554 cut-off events. [2021-12-17 22:46:10,728 INFO L130 PetriNetUnfolder]: For 3722/3735 co-relation queries the response was YES. [2021-12-17 22:46:10,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12306 conditions, 6554 events. 1096/6554 cut-off events. For 3722/3735 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 74329 event pairs, 684 based on Foata normal form. 0/5572 useless extension candidates. Maximal degree in co-relation 12245. Up to 1695 conditions per place. [2021-12-17 22:46:10,790 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 43 selfloop transitions, 4 changer transitions 62/431 dead transitions. [2021-12-17 22:46:10,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 431 transitions, 1797 flow [2021-12-17 22:46:10,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:46:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:46:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2735 transitions. [2021-12-17 22:46:10,792 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8608750393452943 [2021-12-17 22:46:10,792 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2735 transitions. [2021-12-17 22:46:10,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2735 transitions. [2021-12-17 22:46:10,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:46:10,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2735 transitions. [2021-12-17 22:46:10,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 303.8888888888889) internal successors, (2735), 9 states have internal predecessors, (2735), 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) [2021-12-17 22:46:10,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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) [2021-12-17 22:46:10,797 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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) [2021-12-17 22:46:10,797 INFO L186 Difference]: Start difference. First operand has 440 places, 434 transitions, 1743 flow. Second operand 9 states and 2735 transitions. [2021-12-17 22:46:10,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 431 transitions, 1797 flow [2021-12-17 22:46:10,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 431 transitions, 1701 flow, removed 26 selfloop flow, removed 12 redundant places. [2021-12-17 22:46:10,821 INFO L242 Difference]: Finished difference. Result has 437 places, 369 transitions, 1230 flow [2021-12-17 22:46:10,822 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1505, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1230, PETRI_PLACES=437, PETRI_TRANSITIONS=369} [2021-12-17 22:46:10,822 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 123 predicate places. [2021-12-17 22:46:10,822 INFO L470 AbstractCegarLoop]: Abstraction has has 437 places, 369 transitions, 1230 flow [2021-12-17 22:46:10,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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) [2021-12-17 22:46:10,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:46:10,823 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:46:10,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-17 22:46:11,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 22:46:11,039 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:46:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:46:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1422028368, now seen corresponding path program 1 times [2021-12-17 22:46:11,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:46:11,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500948575] [2021-12-17 22:46:11,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:11,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:46:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:11,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:46:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500948575] [2021-12-17 22:46:11,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500948575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:46:11,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:46:11,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 22:46:11,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185311582] [2021-12-17 22:46:11,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:46:11,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 22:46:11,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:46:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 22:46:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-12-17 22:46:11,213 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2021-12-17 22:46:11,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 369 transitions, 1230 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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) [2021-12-17 22:46:11,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:46:11,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2021-12-17 22:46:11,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:46:23,043 INFO L129 PetriNetUnfolder]: 16930/58230 cut-off events. [2021-12-17 22:46:23,043 INFO L130 PetriNetUnfolder]: For 33522/35276 co-relation queries the response was YES. [2021-12-17 22:46:24,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122763 conditions, 58230 events. 16930/58230 cut-off events. For 33522/35276 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 768837 event pairs, 7521 based on Foata normal form. 1026/57441 useless extension candidates. Maximal degree in co-relation 122706. Up to 17276 conditions per place. [2021-12-17 22:46:24,187 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 502 selfloop transitions, 62 changer transitions 0/831 dead transitions. [2021-12-17 22:46:24,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 831 transitions, 4090 flow [2021-12-17 22:46:24,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-17 22:46:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-12-17 22:46:24,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 10794 transitions. [2021-12-17 22:46:24,194 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7458025288468182 [2021-12-17 22:46:24,194 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 10794 transitions. [2021-12-17 22:46:24,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 10794 transitions. [2021-12-17 22:46:24,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:46:24,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 10794 transitions. [2021-12-17 22:46:24,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 263.2682926829268) internal successors, (10794), 41 states have internal predecessors, (10794), 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) [2021-12-17 22:46:24,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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) [2021-12-17 22:46:24,213 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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) [2021-12-17 22:46:24,213 INFO L186 Difference]: Start difference. First operand has 437 places, 369 transitions, 1230 flow. Second operand 41 states and 10794 transitions. [2021-12-17 22:46:24,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 831 transitions, 4090 flow [2021-12-17 22:46:24,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 831 transitions, 3890 flow, removed 89 selfloop flow, removed 26 redundant places. [2021-12-17 22:46:24,922 INFO L242 Difference]: Finished difference. Result has 445 places, 424 transitions, 1604 flow [2021-12-17 22:46:24,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1146, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=1604, PETRI_PLACES=445, PETRI_TRANSITIONS=424} [2021-12-17 22:46:24,928 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 131 predicate places. [2021-12-17 22:46:24,928 INFO L470 AbstractCegarLoop]: Abstraction has has 445 places, 424 transitions, 1604 flow [2021-12-17 22:46:24,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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) [2021-12-17 22:46:24,929 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:46:24,929 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:46:24,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 22:46:24,930 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-17 22:46:24,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:46:24,930 INFO L85 PathProgramCache]: Analyzing trace with hash 739231410, now seen corresponding path program 2 times [2021-12-17 22:46:24,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:46:24,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008458942] [2021-12-17 22:46:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:46:24,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:46:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:46:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 22:46:25,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:46:25,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008458942] [2021-12-17 22:46:25,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008458942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:46:25,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:46:25,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-17 22:46:25,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210331974] [2021-12-17 22:46:25,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:46:25,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-17 22:46:25,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:46:25,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-17 22:46:25,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-12-17 22:46:25,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2021-12-17 22:46:25,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 424 transitions, 1604 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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) [2021-12-17 22:46:25,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:46:25,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2021-12-17 22:46:25,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand