./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y --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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:01:22,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:01:22,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:01:22,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:01:22,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:01:22,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:01:22,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:01:22,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:01:22,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:01:23,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:01:23,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:01:23,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:01:23,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:01:23,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:01:23,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:01:23,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:01:23,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:01:23,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:01:23,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:01:23,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:01:23,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:01:23,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:01:23,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:01:23,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:01:23,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:01:23,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:01:23,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:01:23,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:01:23,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:01:23,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:01:23,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:01:23,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:01:23,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:01:23,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:01:23,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:01:23,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:01:23,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:01:23,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:01:23,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:01:23,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:01:23,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:01:23,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:01:23,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:01:23,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:01:23,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:01:23,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:01:23,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:01:23,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:01:23,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:01:23,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:01:23,115 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:01:23,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:01:23,116 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:01:23,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:01:23,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:01:23,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:01:23,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:01:23,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:01:23,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:01:23,118 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:01:23,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:01:23,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:01:23,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:01:23,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:01:23,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:01:23,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:01:23,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:01:23,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:01:23,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:01:23,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:01:23,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:01:23,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:01:23,122 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:01:23,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:01:23,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:01:23,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:01:23,123 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2021-11-13 18:01:23,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:01:23,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:01:23,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:01:23,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:01:23,468 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:01:23,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread/stack-1.i [2021-11-13 18:01:23,551 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/data/8541c5829/8bf421ea10c04f9d9b907a7eab32d799/FLAG2d9e3c982 [2021-11-13 18:01:24,204 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:01:24,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/sv-benchmarks/c/pthread/stack-1.i [2021-11-13 18:01:24,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/data/8541c5829/8bf421ea10c04f9d9b907a7eab32d799/FLAG2d9e3c982 [2021-11-13 18:01:24,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/data/8541c5829/8bf421ea10c04f9d9b907a7eab32d799 [2021-11-13 18:01:24,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:01:24,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:01:24,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:01:24,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:01:24,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:01:24,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:01:24" (1/1) ... [2021-11-13 18:01:24,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b7df8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:24, skipping insertion in model container [2021-11-13 18:01:24,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:01:24" (1/1) ... [2021-11-13 18:01:24,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:01:24,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:01:25,001 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2021-11-13 18:01:25,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:01:25,041 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:01:25,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/sv-benchmarks/c/pthread/stack-1.i[41520,41533] [2021-11-13 18:01:25,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:01:25,167 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:01:25,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25 WrapperNode [2021-11-13 18:01:25,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:01:25,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:01:25,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:01:25,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:01:25,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:01:25,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:01:25,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:01:25,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:01:25,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:01:25,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:01:25,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:01:25,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:01:25,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (1/1) ... [2021-11-13 18:01:25,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:01:25,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:01:25,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:01:25,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:01:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-13 18:01:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-13 18:01:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-13 18:01:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-13 18:01:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:01:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:01:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:01:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:01:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 18:01:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:01:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:01:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:01:25,392 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:01:25,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:01:25,939 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:01:25,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:01:25 BoogieIcfgContainer [2021-11-13 18:01:25,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:01:25,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:01:25,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:01:25,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:01:25,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:01:24" (1/3) ... [2021-11-13 18:01:25,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb3b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:01:25, skipping insertion in model container [2021-11-13 18:01:25,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:01:25" (2/3) ... [2021-11-13 18:01:25,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb3b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:01:25, skipping insertion in model container [2021-11-13 18:01:25,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:01:25" (3/3) ... [2021-11-13 18:01:25,966 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2021-11-13 18:01:25,972 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:01:25,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:01:25,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 18:01:25,973 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:01:26,013 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,014 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,015 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,016 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,017 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,018 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,019 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,020 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,021 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,022 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,023 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,023 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,023 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,023 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,024 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,024 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,024 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,024 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,025 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,025 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,025 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,026 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,026 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,026 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,026 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,026 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,027 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,027 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,027 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,028 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,029 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,029 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,029 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,029 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,029 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,030 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,030 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,030 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,030 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,031 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,031 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,031 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,031 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,032 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,033 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,033 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,033 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,033 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,034 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,034 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,034 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,034 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,035 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,035 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,035 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,035 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,036 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,036 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,036 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,036 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,037 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,037 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,037 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,037 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,038 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,038 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,038 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,038 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,039 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,041 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,041 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,041 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,042 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,042 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,042 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,042 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,043 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,043 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,049 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,050 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,050 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,051 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,051 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,051 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,051 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,052 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,052 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,052 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,052 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,053 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,053 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,053 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,053 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,054 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,054 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,054 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,054 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,054 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,055 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,055 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,055 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,055 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,057 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,071 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,071 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,071 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,072 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,072 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,072 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,072 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,073 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,073 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,073 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,073 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,074 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,074 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,074 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,074 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,075 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,075 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,075 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,075 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,076 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,076 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,076 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,077 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,077 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,077 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,078 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,078 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,078 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,078 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,079 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,079 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,079 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,079 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,080 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,080 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,080 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,080 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,081 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,081 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,081 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,081 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,081 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,082 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,082 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,082 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,082 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,082 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,083 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,083 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,083 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,083 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,084 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,084 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,084 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,084 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,084 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,085 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,085 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,085 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,086 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,086 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,086 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,086 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,087 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,087 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,087 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,098 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,099 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,099 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,100 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,100 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,100 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,100 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,101 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,101 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,101 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,102 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,102 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,102 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,102 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,103 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,103 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,103 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,104 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,104 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,104 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,105 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,105 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,105 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,105 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,106 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,106 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,106 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,107 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,107 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,107 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,107 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,108 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,108 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,108 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,108 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,109 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,109 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,109 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,109 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,110 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,110 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,110 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,110 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,114 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,119 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,119 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,119 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,119 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,120 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post43#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,120 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,120 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,120 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet44#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,121 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,122 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret46#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,122 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,122 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,122 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,122 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~tmp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,123 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,124 WARN L322 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,127 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret41#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet48#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret49#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,128 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post47#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,129 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem42#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet39#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,130 WARN L322 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:01:26,132 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-13 18:01:26,198 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:01:26,210 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 [2021-11-13 18:01:26,211 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-13 18:01:26,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 174 transitions, 364 flow [2021-11-13 18:01:26,329 INFO L129 PetriNetUnfolder]: 10/172 cut-off events. [2021-11-13 18:01:26,330 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-13 18:01:26,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 172 events. 10/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 419 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 126. Up to 3 conditions per place. [2021-11-13 18:01:26,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 174 transitions, 364 flow [2021-11-13 18:01:26,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 162 transitions, 333 flow [2021-11-13 18:01:26,377 INFO L129 PetriNetUnfolder]: 5/132 cut-off events. [2021-11-13 18:01:26,377 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-13 18:01:26,377 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:26,378 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] [2021-11-13 18:01:26,379 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:26,384 INFO L85 PathProgramCache]: Analyzing trace with hash 159047084, now seen corresponding path program 1 times [2021-11-13 18:01:26,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:26,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598733169] [2021-11-13 18:01:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:26,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:26,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:26,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598733169] [2021-11-13 18:01:26,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598733169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:26,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:26,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:01:26,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419784121] [2021-11-13 18:01:26,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:26,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:01:26,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:26,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:01:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:01:26,870 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 174 [2021-11-13 18:01:26,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 162 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:26,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:26,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 174 [2021-11-13 18:01:26,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:27,194 INFO L129 PetriNetUnfolder]: 88/701 cut-off events. [2021-11-13 18:01:27,195 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-11-13 18:01:27,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 701 events. 88/701 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3119 event pairs, 32 based on Foata normal form. 69/704 useless extension candidates. Maximal degree in co-relation 747. Up to 111 conditions per place. [2021-11-13 18:01:27,210 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 20 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2021-11-13 18:01:27,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 160 transitions, 381 flow [2021-11-13 18:01:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:01:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:01:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2021-11-13 18:01:27,239 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9291187739463601 [2021-11-13 18:01:27,240 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2021-11-13 18:01:27,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2021-11-13 18:01:27,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:27,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2021-11-13 18:01:27,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,265 INFO L186 Difference]: Start difference. First operand has 159 places, 162 transitions, 333 flow. Second operand 3 states and 485 transitions. [2021-11-13 18:01:27,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 160 transitions, 381 flow [2021-11-13 18:01:27,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 160 transitions, 373 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 18:01:27,281 INFO L242 Difference]: Finished difference. Result has 155 places, 154 transitions, 327 flow [2021-11-13 18:01:27,285 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2021-11-13 18:01:27,290 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, -4 predicate places. [2021-11-13 18:01:27,291 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 327 flow [2021-11-13 18:01:27,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,292 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:27,293 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] [2021-11-13 18:01:27,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:01:27,303 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:27,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:27,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1019912990, now seen corresponding path program 1 times [2021-11-13 18:01:27,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:27,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342083852] [2021-11-13 18:01:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:27,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:27,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:27,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342083852] [2021-11-13 18:01:27,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342083852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:27,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:27,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:01:27,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448489155] [2021-11-13 18:01:27,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:27,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:01:27,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:27,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:01:27,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:01:27,463 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 174 [2021-11-13 18:01:27,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:27,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 174 [2021-11-13 18:01:27,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:27,656 INFO L129 PetriNetUnfolder]: 34/592 cut-off events. [2021-11-13 18:01:27,656 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-11-13 18:01:27,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 592 events. 34/592 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2054 event pairs, 11 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 411. Up to 45 conditions per place. [2021-11-13 18:01:27,665 INFO L132 encePairwiseOnDemand]: 169/174 looper letters, 16 selfloop transitions, 4 changer transitions 0/162 dead transitions. [2021-11-13 18:01:27,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 162 transitions, 388 flow [2021-11-13 18:01:27,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:01:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-13 18:01:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 637 transitions. [2021-11-13 18:01:27,669 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9152298850574713 [2021-11-13 18:01:27,669 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 637 transitions. [2021-11-13 18:01:27,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 637 transitions. [2021-11-13 18:01:27,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:27,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 637 transitions. [2021-11-13 18:01:27,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.25) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,678 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,678 INFO L186 Difference]: Start difference. First operand has 155 places, 154 transitions, 327 flow. Second operand 4 states and 637 transitions. [2021-11-13 18:01:27,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 162 transitions, 388 flow [2021-11-13 18:01:27,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 162 transitions, 385 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 18:01:27,686 INFO L242 Difference]: Finished difference. Result has 159 places, 157 transitions, 352 flow [2021-11-13 18:01:27,687 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=159, PETRI_TRANSITIONS=157} [2021-11-13 18:01:27,688 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 0 predicate places. [2021-11-13 18:01:27,688 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 157 transitions, 352 flow [2021-11-13 18:01:27,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,689 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:27,690 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] [2021-11-13 18:01:27,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:01:27,690 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:27,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1119178504, now seen corresponding path program 1 times [2021-11-13 18:01:27,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:27,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859491872] [2021-11-13 18:01:27,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:27,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:27,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:27,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859491872] [2021-11-13 18:01:27,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859491872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:27,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:27,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:01:27,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742266904] [2021-11-13 18:01:27,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:27,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:01:27,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:01:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:01:27,834 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 174 [2021-11-13 18:01:27,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 157 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:27,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:27,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 174 [2021-11-13 18:01:27,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:28,161 INFO L129 PetriNetUnfolder]: 127/1269 cut-off events. [2021-11-13 18:01:28,162 INFO L130 PetriNetUnfolder]: For 90/100 co-relation queries the response was YES. [2021-11-13 18:01:28,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1269 events. 127/1269 cut-off events. For 90/100 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6918 event pairs, 33 based on Foata normal form. 12/1207 useless extension candidates. Maximal degree in co-relation 1334. Up to 135 conditions per place. [2021-11-13 18:01:28,175 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 25 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2021-11-13 18:01:28,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 169 transitions, 443 flow [2021-11-13 18:01:28,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:01:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:01:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-11-13 18:01:28,178 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2021-11-13 18:01:28,178 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-11-13 18:01:28,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-11-13 18:01:28,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:28,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-11-13 18:01:28,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:28,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:28,183 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:28,184 INFO L186 Difference]: Start difference. First operand has 159 places, 157 transitions, 352 flow. Second operand 3 states and 480 transitions. [2021-11-13 18:01:28,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 169 transitions, 443 flow [2021-11-13 18:01:28,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 169 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 18:01:28,192 INFO L242 Difference]: Finished difference. Result has 162 places, 161 transitions, 392 flow [2021-11-13 18:01:28,193 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=162, PETRI_TRANSITIONS=161} [2021-11-13 18:01:28,196 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 3 predicate places. [2021-11-13 18:01:28,196 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 161 transitions, 392 flow [2021-11-13 18:01:28,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:28,197 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:28,198 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:01:28,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:01:28,199 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:28,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:28,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1559571970, now seen corresponding path program 1 times [2021-11-13 18:01:28,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:28,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153647854] [2021-11-13 18:01:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:28,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:28,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:28,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153647854] [2021-11-13 18:01:28,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153647854] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:01:28,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673532772] [2021-11-13 18:01:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:28,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:01:28,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:01:28,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:01:28,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:01:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:28,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:01:28,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:01:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:29,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:01:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:29,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673532772] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:01:29,331 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:01:29,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-13 18:01:29,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918953131] [2021-11-13 18:01:29,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:01:29,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 18:01:29,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 18:01:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:01:29,339 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 174 [2021-11-13 18:01:29,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 161 transitions, 392 flow. Second operand has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:29,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:29,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 174 [2021-11-13 18:01:29,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:29,918 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([468] L1009-->L1011: Formula: (< 0 v_~top~0_7) InVars {~top~0=v_~top~0_7} OutVars{~top~0=v_~top~0_7} AuxVars[] AssignedVars[][182], [Black: 188#true, 116#L1011true, 34#L946-2true, Black: 176#(= ~top~0 0), 194#true, 32#L1023-4true, 190#(<= 1 ~top~0), Black: 181#(= |t1Thread1of1ForFork0_push_#res#1| 0), Black: 184#(and (= |t1Thread1of1ForFork0_#t~ret46#1| 0) (= |t1Thread1of1ForFork0_push_#res#1| 0)), t2Thread1of1ForFork1InUse]) [2021-11-13 18:01:29,918 INFO L384 tUnfolder$Statistics]: this new event has 187 ancestors and is cut-off event [2021-11-13 18:01:29,919 INFO L387 tUnfolder$Statistics]: existing Event has 166 ancestors and is cut-off event [2021-11-13 18:01:29,919 INFO L387 tUnfolder$Statistics]: existing Event has 167 ancestors and is cut-off event [2021-11-13 18:01:29,919 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2021-11-13 18:01:29,919 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([469] L1009-->L1009-1: Formula: (not (< 0 v_~top~0_13)) InVars {~top~0=v_~top~0_13} OutVars{~top~0=v_~top~0_13} AuxVars[] AssignedVars[][183], [Black: 190#(<= 1 ~top~0), 34#L946-2true, Black: 176#(= ~top~0 0), 85#L1009-1true, 32#L1023-4true, Black: 181#(= |t1Thread1of1ForFork0_push_#res#1| 0), Black: 184#(and (= |t1Thread1of1ForFork0_#t~ret46#1| 0) (= |t1Thread1of1ForFork0_push_#res#1| 0)), t2Thread1of1ForFork1InUse, 188#true, 232#(<= ~top~0 0)]) [2021-11-13 18:01:29,920 INFO L384 tUnfolder$Statistics]: this new event has 187 ancestors and is cut-off event [2021-11-13 18:01:29,920 INFO L387 tUnfolder$Statistics]: existing Event has 166 ancestors and is cut-off event [2021-11-13 18:01:29,920 INFO L387 tUnfolder$Statistics]: existing Event has 167 ancestors and is cut-off event [2021-11-13 18:01:29,920 INFO L387 tUnfolder$Statistics]: existing Event has 159 ancestors and is cut-off event [2021-11-13 18:01:30,014 INFO L129 PetriNetUnfolder]: 388/2721 cut-off events. [2021-11-13 18:01:30,014 INFO L130 PetriNetUnfolder]: For 980/1066 co-relation queries the response was YES. [2021-11-13 18:01:30,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4165 conditions, 2721 events. 388/2721 cut-off events. For 980/1066 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 19075 event pairs, 64 based on Foata normal form. 38/2611 useless extension candidates. Maximal degree in co-relation 3627. Up to 300 conditions per place. [2021-11-13 18:01:30,079 INFO L132 encePairwiseOnDemand]: 165/174 looper letters, 86 selfloop transitions, 46 changer transitions 1/271 dead transitions. [2021-11-13 18:01:30,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 271 transitions, 1074 flow [2021-11-13 18:01:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 18:01:30,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-13 18:01:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2795 transitions. [2021-11-13 18:01:30,089 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8924010217113666 [2021-11-13 18:01:30,089 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2795 transitions. [2021-11-13 18:01:30,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2795 transitions. [2021-11-13 18:01:30,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:30,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2795 transitions. [2021-11-13 18:01:30,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 155.27777777777777) internal successors, (2795), 18 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 174.0) internal successors, (3306), 19 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,113 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 174.0) internal successors, (3306), 19 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,113 INFO L186 Difference]: Start difference. First operand has 162 places, 161 transitions, 392 flow. Second operand 18 states and 2795 transitions. [2021-11-13 18:01:30,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 271 transitions, 1074 flow [2021-11-13 18:01:30,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 271 transitions, 1012 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-11-13 18:01:30,128 INFO L242 Difference]: Finished difference. Result has 183 places, 216 transitions, 763 flow [2021-11-13 18:01:30,128 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=763, PETRI_PLACES=183, PETRI_TRANSITIONS=216} [2021-11-13 18:01:30,130 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 24 predicate places. [2021-11-13 18:01:30,130 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 216 transitions, 763 flow [2021-11-13 18:01:30,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.5) internal successors, (1505), 10 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,131 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:30,131 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] [2021-11-13 18:01:30,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:01:30,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:01:30,347 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1400149819, now seen corresponding path program 1 times [2021-11-13 18:01:30,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:30,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261456435] [2021-11-13 18:01:30,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:30,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:30,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:30,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261456435] [2021-11-13 18:01:30,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261456435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:30,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:30,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:01:30,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260187290] [2021-11-13 18:01:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:30,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:01:30,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:30,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:01:30,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:01:30,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 174 [2021-11-13 18:01:30,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 216 transitions, 763 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:30,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 174 [2021-11-13 18:01:30,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:30,645 INFO L129 PetriNetUnfolder]: 54/1109 cut-off events. [2021-11-13 18:01:30,645 INFO L130 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2021-11-13 18:01:30,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 1109 events. 54/1109 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4857 event pairs, 9 based on Foata normal form. 18/1084 useless extension candidates. Maximal degree in co-relation 1132. Up to 51 conditions per place. [2021-11-13 18:01:30,654 INFO L132 encePairwiseOnDemand]: 170/174 looper letters, 12 selfloop transitions, 4 changer transitions 0/175 dead transitions. [2021-11-13 18:01:30,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 175 transitions, 540 flow [2021-11-13 18:01:30,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:01:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:01:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2021-11-13 18:01:30,657 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2021-11-13 18:01:30,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2021-11-13 18:01:30,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2021-11-13 18:01:30,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:30,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2021-11-13 18:01:30,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,662 INFO L186 Difference]: Start difference. First operand has 183 places, 216 transitions, 763 flow. Second operand 3 states and 474 transitions. [2021-11-13 18:01:30,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 175 transitions, 540 flow [2021-11-13 18:01:30,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 175 transitions, 518 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-11-13 18:01:30,670 INFO L242 Difference]: Finished difference. Result has 173 places, 173 transitions, 487 flow [2021-11-13 18:01:30,670 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=173, PETRI_TRANSITIONS=173} [2021-11-13 18:01:30,671 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 14 predicate places. [2021-11-13 18:01:30,671 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 173 transitions, 487 flow [2021-11-13 18:01:30,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:30,672 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:30,672 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] [2021-11-13 18:01:30,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:01:30,673 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:30,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:30,673 INFO L85 PathProgramCache]: Analyzing trace with hash -776860575, now seen corresponding path program 1 times [2021-11-13 18:01:30,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:30,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522127990] [2021-11-13 18:01:30,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:30,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:31,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:31,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522127990] [2021-11-13 18:01:31,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522127990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:31,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:31,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-11-13 18:01:31,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874784802] [2021-11-13 18:01:31,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:31,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-13 18:01:31,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:31,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-13 18:01:31,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-11-13 18:01:31,637 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-11-13 18:01:31,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 173 transitions, 487 flow. Second operand has 24 states, 24 states have (on average 97.54166666666667) internal successors, (2341), 24 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:31,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:31,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-11-13 18:01:31,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:35,923 INFO L129 PetriNetUnfolder]: 1122/4496 cut-off events. [2021-11-13 18:01:35,923 INFO L130 PetriNetUnfolder]: For 906/906 co-relation queries the response was YES. [2021-11-13 18:01:35,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8478 conditions, 4496 events. 1122/4496 cut-off events. For 906/906 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 32107 event pairs, 173 based on Foata normal form. 20/4366 useless extension candidates. Maximal degree in co-relation 5126. Up to 1458 conditions per place. [2021-11-13 18:01:35,969 INFO L132 encePairwiseOnDemand]: 137/174 looper letters, 249 selfloop transitions, 59 changer transitions 33/425 dead transitions. [2021-11-13 18:01:35,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 425 transitions, 1855 flow [2021-11-13 18:01:35,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-13 18:01:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-11-13 18:01:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 4491 transitions. [2021-11-13 18:01:35,985 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5865987460815048 [2021-11-13 18:01:35,985 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 4491 transitions. [2021-11-13 18:01:35,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 4491 transitions. [2021-11-13 18:01:35,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:35,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 4491 transitions. [2021-11-13 18:01:36,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 102.06818181818181) internal successors, (4491), 44 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:36,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 174.0) internal successors, (7830), 45 states have internal predecessors, (7830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:36,029 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 174.0) internal successors, (7830), 45 states have internal predecessors, (7830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:36,029 INFO L186 Difference]: Start difference. First operand has 173 places, 173 transitions, 487 flow. Second operand 44 states and 4491 transitions. [2021-11-13 18:01:36,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 425 transitions, 1855 flow [2021-11-13 18:01:36,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 425 transitions, 1851 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 18:01:36,100 INFO L242 Difference]: Finished difference. Result has 254 places, 228 transitions, 970 flow [2021-11-13 18:01:36,101 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=970, PETRI_PLACES=254, PETRI_TRANSITIONS=228} [2021-11-13 18:01:36,104 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 95 predicate places. [2021-11-13 18:01:36,105 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 228 transitions, 970 flow [2021-11-13 18:01:36,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 97.54166666666667) internal successors, (2341), 24 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:36,106 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:36,106 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] [2021-11-13 18:01:36,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:01:36,107 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash 159145353, now seen corresponding path program 2 times [2021-11-13 18:01:36,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:36,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925765175] [2021-11-13 18:01:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:36,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:37,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:37,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925765175] [2021-11-13 18:01:37,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925765175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:37,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:37,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-13 18:01:37,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987057670] [2021-11-13 18:01:37,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:37,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-13 18:01:37,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:37,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-13 18:01:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-11-13 18:01:37,277 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-13 18:01:37,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 228 transitions, 970 flow. Second operand has 29 states, 29 states have (on average 77.58620689655173) internal successors, (2250), 29 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:37,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:37,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-13 18:01:37,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:43,819 INFO L129 PetriNetUnfolder]: 3270/11126 cut-off events. [2021-11-13 18:01:43,819 INFO L130 PetriNetUnfolder]: For 7218/7224 co-relation queries the response was YES. [2021-11-13 18:01:43,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25542 conditions, 11126 events. 3270/11126 cut-off events. For 7218/7224 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 84447 event pairs, 718 based on Foata normal form. 19/10917 useless extension candidates. Maximal degree in co-relation 16967. Up to 3915 conditions per place. [2021-11-13 18:01:43,982 INFO L132 encePairwiseOnDemand]: 136/174 looper letters, 348 selfloop transitions, 61 changer transitions 30/507 dead transitions. [2021-11-13 18:01:43,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 507 transitions, 3012 flow [2021-11-13 18:01:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-13 18:01:43,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-11-13 18:01:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 2962 transitions. [2021-11-13 18:01:43,995 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4863711001642036 [2021-11-13 18:01:43,996 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 2962 transitions. [2021-11-13 18:01:43,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 2962 transitions. [2021-11-13 18:01:43,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:43,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 2962 transitions. [2021-11-13 18:01:44,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 84.62857142857143) internal successors, (2962), 35 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:44,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 174.0) internal successors, (6264), 36 states have internal predecessors, (6264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:44,025 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 174.0) internal successors, (6264), 36 states have internal predecessors, (6264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:44,026 INFO L186 Difference]: Start difference. First operand has 254 places, 228 transitions, 970 flow. Second operand 35 states and 2962 transitions. [2021-11-13 18:01:44,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 507 transitions, 3012 flow [2021-11-13 18:01:44,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 507 transitions, 3000 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-11-13 18:01:44,080 INFO L242 Difference]: Finished difference. Result has 302 places, 263 transitions, 1445 flow [2021-11-13 18:01:44,081 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1445, PETRI_PLACES=302, PETRI_TRANSITIONS=263} [2021-11-13 18:01:44,082 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 143 predicate places. [2021-11-13 18:01:44,082 INFO L470 AbstractCegarLoop]: Abstraction has has 302 places, 263 transitions, 1445 flow [2021-11-13 18:01:44,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 77.58620689655173) internal successors, (2250), 29 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:44,084 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:44,084 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] [2021-11-13 18:01:44,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:01:44,084 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:44,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:44,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1843782287, now seen corresponding path program 3 times [2021-11-13 18:01:44,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:44,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277591573] [2021-11-13 18:01:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:44,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:45,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:45,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:45,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277591573] [2021-11-13 18:01:45,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277591573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:45,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:45,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-13 18:01:45,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889948913] [2021-11-13 18:01:45,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:45,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-13 18:01:45,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:45,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-13 18:01:45,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2021-11-13 18:01:45,432 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 174 [2021-11-13 18:01:45,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 263 transitions, 1445 flow. Second operand has 29 states, 29 states have (on average 78.55172413793103) internal successors, (2278), 29 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:45,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:45,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 174 [2021-11-13 18:01:45,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:01:52,872 INFO L129 PetriNetUnfolder]: 3942/13644 cut-off events. [2021-11-13 18:01:52,872 INFO L130 PetriNetUnfolder]: For 13048/13062 co-relation queries the response was YES. [2021-11-13 18:01:52,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32944 conditions, 13644 events. 3942/13644 cut-off events. For 13048/13062 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 111643 event pairs, 1118 based on Foata normal form. 22/13393 useless extension candidates. Maximal degree in co-relation 23076. Up to 6714 conditions per place. [2021-11-13 18:01:53,033 INFO L132 encePairwiseOnDemand]: 136/174 looper letters, 421 selfloop transitions, 85 changer transitions 35/610 dead transitions. [2021-11-13 18:01:53,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 610 transitions, 4118 flow [2021-11-13 18:01:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-13 18:01:53,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-11-13 18:01:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 4076 transitions. [2021-11-13 18:01:53,042 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48802681992337166 [2021-11-13 18:01:53,042 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 4076 transitions. [2021-11-13 18:01:53,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 4076 transitions. [2021-11-13 18:01:53,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:01:53,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 4076 transitions. [2021-11-13 18:01:53,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 84.91666666666667) internal successors, (4076), 48 states have internal predecessors, (4076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:53,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 174.0) internal successors, (8526), 49 states have internal predecessors, (8526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:53,069 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 174.0) internal successors, (8526), 49 states have internal predecessors, (8526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:53,070 INFO L186 Difference]: Start difference. First operand has 302 places, 263 transitions, 1445 flow. Second operand 48 states and 4076 transitions. [2021-11-13 18:01:53,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 610 transitions, 4118 flow [2021-11-13 18:01:53,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 610 transitions, 4052 flow, removed 10 selfloop flow, removed 14 redundant places. [2021-11-13 18:01:53,157 INFO L242 Difference]: Finished difference. Result has 348 places, 343 transitions, 2183 flow [2021-11-13 18:01:53,158 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1393, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=2183, PETRI_PLACES=348, PETRI_TRANSITIONS=343} [2021-11-13 18:01:53,161 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 189 predicate places. [2021-11-13 18:01:53,161 INFO L470 AbstractCegarLoop]: Abstraction has has 348 places, 343 transitions, 2183 flow [2021-11-13 18:01:53,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 78.55172413793103) internal successors, (2278), 29 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:53,163 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:01:53,163 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] [2021-11-13 18:01:53,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:01:53,164 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:01:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:01:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash -275947231, now seen corresponding path program 4 times [2021-11-13 18:01:53,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:01:53,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550632959] [2021-11-13 18:01:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:01:53,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:01:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:01:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:01:54,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:01:54,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550632959] [2021-11-13 18:01:54,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550632959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:01:54,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:01:54,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-13 18:01:54,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742163737] [2021-11-13 18:01:54,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:01:54,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-13 18:01:54,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:01:54,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-13 18:01:54,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2021-11-13 18:01:54,140 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-13 18:01:54,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 343 transitions, 2183 flow. Second operand has 30 states, 30 states have (on average 77.5) internal successors, (2325), 30 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:01:54,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:01:54,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-13 18:01:54,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:02:02,624 INFO L129 PetriNetUnfolder]: 4970/16953 cut-off events. [2021-11-13 18:02:02,624 INFO L130 PetriNetUnfolder]: For 24251/24276 co-relation queries the response was YES. [2021-11-13 18:02:02,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44497 conditions, 16953 events. 4970/16953 cut-off events. For 24251/24276 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 148682 event pairs, 861 based on Foata normal form. 27/16632 useless extension candidates. Maximal degree in co-relation 44317. Up to 3979 conditions per place. [2021-11-13 18:02:02,860 INFO L132 encePairwiseOnDemand]: 136/174 looper letters, 417 selfloop transitions, 201 changer transitions 53/739 dead transitions. [2021-11-13 18:02:02,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 739 transitions, 5624 flow [2021-11-13 18:02:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-13 18:02:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-11-13 18:02:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3893 transitions. [2021-11-13 18:02:02,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48638180909545226 [2021-11-13 18:02:02,868 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3893 transitions. [2021-11-13 18:02:02,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3893 transitions. [2021-11-13 18:02:02,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:02:02,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3893 transitions. [2021-11-13 18:02:02,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 84.6304347826087) internal successors, (3893), 46 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:02,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 174.0) internal successors, (8178), 47 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:02,892 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 174.0) internal successors, (8178), 47 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:02,892 INFO L186 Difference]: Start difference. First operand has 348 places, 343 transitions, 2183 flow. Second operand 46 states and 3893 transitions. [2021-11-13 18:02:02,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 739 transitions, 5624 flow [2021-11-13 18:02:03,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 739 transitions, 5427 flow, removed 86 selfloop flow, removed 11 redundant places. [2021-11-13 18:02:03,107 INFO L242 Difference]: Finished difference. Result has 391 places, 430 transitions, 3330 flow [2021-11-13 18:02:03,108 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1996, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=3330, PETRI_PLACES=391, PETRI_TRANSITIONS=430} [2021-11-13 18:02:03,109 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 232 predicate places. [2021-11-13 18:02:03,110 INFO L470 AbstractCegarLoop]: Abstraction has has 391 places, 430 transitions, 3330 flow [2021-11-13 18:02:03,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 77.5) internal successors, (2325), 30 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:03,111 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:02:03,111 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] [2021-11-13 18:02:03,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:02:03,112 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:02:03,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:02:03,113 INFO L85 PathProgramCache]: Analyzing trace with hash -212113759, now seen corresponding path program 5 times [2021-11-13 18:02:03,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:02:03,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748354971] [2021-11-13 18:02:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:02:03,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:02:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:02:04,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:02:04,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748354971] [2021-11-13 18:02:04,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748354971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:02:04,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:02:04,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-13 18:02:04,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643968975] [2021-11-13 18:02:04,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:02:04,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-13 18:02:04,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:02:04,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-13 18:02:04,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2021-11-13 18:02:04,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-13 18:02:04,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 430 transitions, 3330 flow. Second operand has 30 states, 30 states have (on average 77.5) internal successors, (2325), 30 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:04,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:02:04,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-13 18:02:04,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:02:15,096 INFO L129 PetriNetUnfolder]: 5962/20350 cut-off events. [2021-11-13 18:02:15,096 INFO L130 PetriNetUnfolder]: For 45966/45998 co-relation queries the response was YES. [2021-11-13 18:02:15,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57571 conditions, 20350 events. 5962/20350 cut-off events. For 45966/45998 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 184249 event pairs, 767 based on Foata normal form. 73/20010 useless extension candidates. Maximal degree in co-relation 55361. Up to 4368 conditions per place. [2021-11-13 18:02:15,426 INFO L132 encePairwiseOnDemand]: 138/174 looper letters, 413 selfloop transitions, 234 changer transitions 35/750 dead transitions. [2021-11-13 18:02:15,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 750 transitions, 6472 flow [2021-11-13 18:02:15,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-13 18:02:15,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-11-13 18:02:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 3768 transitions. [2021-11-13 18:02:15,433 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4812260536398467 [2021-11-13 18:02:15,433 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 3768 transitions. [2021-11-13 18:02:15,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 3768 transitions. [2021-11-13 18:02:15,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:02:15,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 3768 transitions. [2021-11-13 18:02:15,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 83.73333333333333) internal successors, (3768), 45 states have internal predecessors, (3768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:15,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 174.0) internal successors, (8004), 46 states have internal predecessors, (8004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:15,455 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 174.0) internal successors, (8004), 46 states have internal predecessors, (8004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:15,455 INFO L186 Difference]: Start difference. First operand has 391 places, 430 transitions, 3330 flow. Second operand 45 states and 3768 transitions. [2021-11-13 18:02:15,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 750 transitions, 6472 flow [2021-11-13 18:02:15,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 750 transitions, 6199 flow, removed 100 selfloop flow, removed 19 redundant places. [2021-11-13 18:02:15,763 INFO L242 Difference]: Finished difference. Result has 443 places, 470 transitions, 4492 flow [2021-11-13 18:02:15,765 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=3191, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=4492, PETRI_PLACES=443, PETRI_TRANSITIONS=470} [2021-11-13 18:02:15,766 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 284 predicate places. [2021-11-13 18:02:15,766 INFO L470 AbstractCegarLoop]: Abstraction has has 443 places, 470 transitions, 4492 flow [2021-11-13 18:02:15,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 77.5) internal successors, (2325), 30 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:15,767 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:02:15,768 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:02:15,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:02:15,768 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:02:15,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:02:15,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1568612968, now seen corresponding path program 1 times [2021-11-13 18:02:15,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:02:15,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506378163] [2021-11-13 18:02:15,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:02:15,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:02:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:02:16,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:02:16,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506378163] [2021-11-13 18:02:16,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506378163] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:02:16,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592725154] [2021-11-13 18:02:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:02:16,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:02:16,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:02:16,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:02:16,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:02:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:16,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-13 18:02:16,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:02:18,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-13 18:02:18,984 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-13 18:02:18,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 19 [2021-11-13 18:02:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:02:19,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:02:19,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2021-11-13 18:02:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 18:02:20,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592725154] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 18:02:20,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:02:20,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [26, 26] total 56 [2021-11-13 18:02:20,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040879189] [2021-11-13 18:02:20,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:02:20,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-13 18:02:20,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:02:20,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-13 18:02:20,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=2909, Unknown=0, NotChecked=0, Total=3080 [2021-11-13 18:02:20,630 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-11-13 18:02:20,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 470 transitions, 4492 flow. Second operand has 22 states, 22 states have (on average 98.63636363636364) internal successors, (2170), 22 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:20,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:02:20,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-11-13 18:02:20,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:02:34,664 INFO L129 PetriNetUnfolder]: 4781/22845 cut-off events. [2021-11-13 18:02:34,664 INFO L130 PetriNetUnfolder]: For 63839/63862 co-relation queries the response was YES. [2021-11-13 18:02:35,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66606 conditions, 22845 events. 4781/22845 cut-off events. For 63839/63862 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 237253 event pairs, 776 based on Foata normal form. 20/22398 useless extension candidates. Maximal degree in co-relation 66418. Up to 2517 conditions per place. [2021-11-13 18:02:35,099 INFO L132 encePairwiseOnDemand]: 141/174 looper letters, 359 selfloop transitions, 320 changer transitions 0/815 dead transitions. [2021-11-13 18:02:35,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 815 transitions, 8176 flow [2021-11-13 18:02:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-13 18:02:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-11-13 18:02:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 6504 transitions. [2021-11-13 18:02:35,109 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5750663129973475 [2021-11-13 18:02:35,109 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 6504 transitions. [2021-11-13 18:02:35,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 6504 transitions. [2021-11-13 18:02:35,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:02:35,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 6504 transitions. [2021-11-13 18:02:35,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 100.06153846153846) internal successors, (6504), 65 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:35,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 174.0) internal successors, (11484), 66 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:35,144 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 174.0) internal successors, (11484), 66 states have internal predecessors, (11484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:35,144 INFO L186 Difference]: Start difference. First operand has 443 places, 470 transitions, 4492 flow. Second operand 65 states and 6504 transitions. [2021-11-13 18:02:35,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 815 transitions, 8176 flow [2021-11-13 18:02:35,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 815 transitions, 7721 flow, removed 181 selfloop flow, removed 19 redundant places. [2021-11-13 18:02:35,740 INFO L242 Difference]: Finished difference. Result has 505 places, 636 transitions, 6673 flow [2021-11-13 18:02:35,741 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=4238, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=6673, PETRI_PLACES=505, PETRI_TRANSITIONS=636} [2021-11-13 18:02:35,742 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 346 predicate places. [2021-11-13 18:02:35,742 INFO L470 AbstractCegarLoop]: Abstraction has has 505 places, 636 transitions, 6673 flow [2021-11-13 18:02:35,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 98.63636363636364) internal successors, (2170), 22 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:35,743 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:02:35,744 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:02:35,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:02:35,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:02:35,955 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-13 18:02:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:02:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1178654230, now seen corresponding path program 2 times [2021-11-13 18:02:35,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:02:35,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853347950] [2021-11-13 18:02:35,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:02:35,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:02:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:02:37,194 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:02:37,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:02:37,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853347950] [2021-11-13 18:02:37,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853347950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:02:37,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882119863] [2021-11-13 18:02:37,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:02:37,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:02:37,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:02:37,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:02:37,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1556d8-fb03-43b2-b3f3-dadfa0c1f9df/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:02:37,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 18:02:37,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:02:37,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-13 18:02:37,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:02:37,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 18:02:37,406 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 18:02:37,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-13 18:02:37,631 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-13 18:02:37,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 37 [2021-11-13 18:02:37,755 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-13 18:02:37,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 37 [2021-11-13 18:02:38,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-11-13 18:02:38,959 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-13 18:02:38,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 42 [2021-11-13 18:02:39,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2021-11-13 18:02:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 18:02:40,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:02:55,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 110 [2021-11-13 18:02:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 16 refuted. 1 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 18:02:57,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882119863] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:02:57,047 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:02:57,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 27] total 80 [2021-11-13 18:02:57,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415094737] [2021-11-13 18:02:57,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:02:57,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-11-13 18:02:57,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:02:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-11-13 18:02:57,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=5999, Unknown=7, NotChecked=0, Total=6320 [2021-11-13 18:02:57,058 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2021-11-13 18:02:57,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 636 transitions, 6673 flow. Second operand has 80 states, 80 states have (on average 78.05) internal successors, (6244), 80 states have internal predecessors, (6244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:02:57,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:02:57,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2021-11-13 18:02:57,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand