./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY --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 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:29:07,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:29:07,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:29:07,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:29:07,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:29:07,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:29:07,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:29:07,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:29:07,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:29:07,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:29:07,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:29:07,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:29:07,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:29:07,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:29:07,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:29:07,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:29:07,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:29:07,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:29:07,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:29:07,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:29:07,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:29:07,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:29:07,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:29:07,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:29:07,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:29:07,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:29:07,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:29:07,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:29:07,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:29:07,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:29:07,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:29:07,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:29:07,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:29:07,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:29:07,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:29:07,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:29:07,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:29:07,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:29:07,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:29:07,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:29:07,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:29:07,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:29:07,565 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:29:07,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:29:07,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:29:07,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:29:07,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:29:07,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:29:07,580 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:29:07,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:29:07,581 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:29:07,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:29:07,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:29:07,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:29:07,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:29:07,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:29:07,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:29:07,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:29:07,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:29:07,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:29:07,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:29:07,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:29:07,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:29:07,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:29:07,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:29:07,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:29:07,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:29:07,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:29:07,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:29:07,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:29:07,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:29:07,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:29:07,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:29:07,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:29:07,594 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_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 [2021-11-07 07:29:08,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:29:08,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:29:08,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:29:08,073 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:29:08,074 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:29:08,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2021-11-07 07:29:08,199 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/data/6af098eb0/03f59e5483af4664a5f7a78d841fd45d/FLAGea4b99dc8 [2021-11-07 07:29:09,007 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:29:09,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2021-11-07 07:29:09,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/data/6af098eb0/03f59e5483af4664a5f7a78d841fd45d/FLAGea4b99dc8 [2021-11-07 07:29:09,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/data/6af098eb0/03f59e5483af4664a5f7a78d841fd45d [2021-11-07 07:29:09,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:29:09,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:29:09,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:29:09,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:29:09,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:29:09,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba63444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09, skipping insertion in model container [2021-11-07 07:29:09,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:29:09,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:29:09,773 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_2f5e639c-a94f-46b8-9497-45d90bb6971f/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2808,2821] [2021-11-07 07:29:09,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:29:09,803 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:29:09,839 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_2f5e639c-a94f-46b8-9497-45d90bb6971f/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2808,2821] [2021-11-07 07:29:09,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:29:09,864 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:29:09,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09 WrapperNode [2021-11-07 07:29:09,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:29:09,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:29:09,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:29:09,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:29:09,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:29:09,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:29:09,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:29:09,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:29:09,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:29:09,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:29:09,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:29:09,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:29:09,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (1/1) ... [2021-11-07 07:29:09,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:29:10,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:10,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:29:10,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:29:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 07:29:10,105 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 07:29:10,105 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 07:29:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 07:29:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:29:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:29:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:29:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:29:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:29:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:29:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:29:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:29:10,110 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 07:29:10,791 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:29:10,791 INFO L299 CfgBuilder]: Removed 33 assume(true) statements. [2021-11-07 07:29:10,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:10 BoogieIcfgContainer [2021-11-07 07:29:10,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:29:10,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:29:10,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:29:10,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:29:10,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:29:09" (1/3) ... [2021-11-07 07:29:10,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cb801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:29:10, skipping insertion in model container [2021-11-07 07:29:10,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:29:09" (2/3) ... [2021-11-07 07:29:10,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cb801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:29:10, skipping insertion in model container [2021-11-07 07:29:10,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:29:10" (3/3) ... [2021-11-07 07:29:10,814 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2021-11-07 07:29:10,822 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 07:29:10,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:29:10,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:29:10,823 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 07:29:10,948 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,949 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,950 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,950 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,950 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,951 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,951 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,952 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,952 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,952 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,953 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,953 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,954 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,972 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,973 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,973 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,973 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,974 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,975 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,975 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,976 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,976 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,979 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,980 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,981 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,981 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,981 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,983 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,983 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,983 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,991 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,992 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,993 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,994 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,995 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,996 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,997 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,998 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,998 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,999 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:10,999 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,002 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,003 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,003 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,004 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,007 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,007 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,009 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,009 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,010 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,010 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,011 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,011 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,012 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,013 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,014 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,015 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,015 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,015 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,016 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,016 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,017 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,017 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,018 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,019 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,022 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,024 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,027 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,029 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,029 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,030 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,031 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,034 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,034 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,035 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,035 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,035 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,042 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,042 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,043 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,043 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,044 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,045 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,045 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,046 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,046 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,046 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,047 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,048 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,049 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,055 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,055 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,056 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,057 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,058 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,059 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,059 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,059 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,060 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,060 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,061 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,061 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,062 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,062 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,062 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,062 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,063 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,064 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,064 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,065 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,065 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,066 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,067 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,068 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,068 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,068 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,069 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,069 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,069 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,070 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,070 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,071 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,071 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,071 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,072 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,072 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,072 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,073 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,074 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,074 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,075 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,075 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,076 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,076 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,077 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,077 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,078 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,078 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,079 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,079 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,083 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,084 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,084 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,085 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,085 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,086 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,088 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,093 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,093 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,096 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,097 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,103 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,103 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,104 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,104 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,104 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,104 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,105 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,105 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,105 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,106 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,106 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,106 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,107 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,108 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,109 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,110 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,110 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,115 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,116 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,117 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,117 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,125 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,125 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,125 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,126 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,126 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,126 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,126 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,130 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,131 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,131 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,132 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 07:29:11,156 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-07 07:29:11,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:29:11,283 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 [2021-11-07 07:29:11,283 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 07:29:11,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 209 transitions, 434 flow [2021-11-07 07:29:11,507 INFO L129 PetriNetUnfolder]: 21/207 cut-off events. [2021-11-07 07:29:11,510 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-07 07:29:11,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 207 events. 21/207 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 358 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 125. Up to 2 conditions per place. [2021-11-07 07:29:11,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 209 transitions, 434 flow [2021-11-07 07:29:11,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 199 transitions, 410 flow [2021-11-07 07:29:11,632 INFO L129 PetriNetUnfolder]: 18/175 cut-off events. [2021-11-07 07:29:11,640 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-07 07:29:11,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:11,641 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:11,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:11,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash 827969848, now seen corresponding path program 1 times [2021-11-07 07:29:11,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:11,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299133819] [2021-11-07 07:29:11,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:11,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:12,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:12,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299133819] [2021-11-07 07:29:12,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299133819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:12,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:12,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:29:12,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036267543] [2021-11-07 07:29:12,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:29:12,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:12,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:29:12,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:29:12,163 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 209 [2021-11-07 07:29:12,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 199 transitions, 410 flow. Second operand has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:12,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:12,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 209 [2021-11-07 07:29:12,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:12,312 INFO L129 PetriNetUnfolder]: 6/184 cut-off events. [2021-11-07 07:29:12,313 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-07 07:29:12,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 184 events. 6/184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 330 event pairs, 0 based on Foata normal form. 15/181 useless extension candidates. Maximal degree in co-relation 190. Up to 2 conditions per place. [2021-11-07 07:29:12,323 INFO L132 encePairwiseOnDemand]: 194/209 looper letters, 0 selfloop transitions, 0 changer transitions 4/184 dead transitions. [2021-11-07 07:29:12,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 184 transitions, 380 flow [2021-11-07 07:29:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:29:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-07 07:29:12,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 401 transitions. [2021-11-07 07:29:12,358 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9593301435406698 [2021-11-07 07:29:12,358 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 401 transitions. [2021-11-07 07:29:12,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 401 transitions. [2021-11-07 07:29:12,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:12,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 401 transitions. [2021-11-07 07:29:12,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:12,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:12,389 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:12,392 INFO L186 Difference]: Start difference. First operand has 185 places, 199 transitions, 410 flow. Second operand 2 states and 401 transitions. [2021-11-07 07:29:12,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 184 transitions, 380 flow [2021-11-07 07:29:12,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 184 transitions, 372 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-07 07:29:12,411 INFO L242 Difference]: Finished difference. Result has 182 places, 180 transitions, 364 flow [2021-11-07 07:29:12,415 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=364, PETRI_PLACES=182, PETRI_TRANSITIONS=180} [2021-11-07 07:29:12,416 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, -3 predicate places. [2021-11-07 07:29:12,417 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 180 transitions, 364 flow [2021-11-07 07:29:12,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:12,418 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:12,418 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:12,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:29:12,419 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:12,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -597366187, now seen corresponding path program 1 times [2021-11-07 07:29:12,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:12,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343753641] [2021-11-07 07:29:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:12,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:13,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:13,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343753641] [2021-11-07 07:29:13,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343753641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:13,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:13,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:29:13,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335308375] [2021-11-07 07:29:13,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:29:13,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:13,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:29:13,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:29:13,022 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209 [2021-11-07 07:29:13,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 180 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:13,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:13,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209 [2021-11-07 07:29:13,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:13,298 INFO L129 PetriNetUnfolder]: 140/596 cut-off events. [2021-11-07 07:29:13,298 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 07:29:13,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 596 events. 140/596 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2346 event pairs, 42 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 829. Up to 167 conditions per place. [2021-11-07 07:29:13,306 INFO L132 encePairwiseOnDemand]: 203/209 looper letters, 38 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2021-11-07 07:29:13,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 195 transitions, 480 flow [2021-11-07 07:29:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:29:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-07 07:29:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 704 transitions. [2021-11-07 07:29:13,311 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8421052631578947 [2021-11-07 07:29:13,312 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 704 transitions. [2021-11-07 07:29:13,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 704 transitions. [2021-11-07 07:29:13,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:13,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 704 transitions. [2021-11-07 07:29:13,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:13,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:13,325 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:13,325 INFO L186 Difference]: Start difference. First operand has 182 places, 180 transitions, 364 flow. Second operand 4 states and 704 transitions. [2021-11-07 07:29:13,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 195 transitions, 480 flow [2021-11-07 07:29:13,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 195 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-07 07:29:13,341 INFO L242 Difference]: Finished difference. Result has 183 places, 184 transitions, 398 flow [2021-11-07 07:29:13,342 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=398, PETRI_PLACES=183, PETRI_TRANSITIONS=184} [2021-11-07 07:29:13,343 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, -2 predicate places. [2021-11-07 07:29:13,343 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 184 transitions, 398 flow [2021-11-07 07:29:13,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:13,344 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:13,345 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] [2021-11-07 07:29:13,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:29:13,345 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:13,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:13,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1842418803, now seen corresponding path program 1 times [2021-11-07 07:29:13,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:13,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501778217] [2021-11-07 07:29:13,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:13,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:13,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:13,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:13,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501778217] [2021-11-07 07:29:13,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501778217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:13,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:13,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:29:13,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883995079] [2021-11-07 07:29:13,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:29:13,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:13,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:29:13,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:29:13,783 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 209 [2021-11-07 07:29:13,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 184 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:13,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:13,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 209 [2021-11-07 07:29:13,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:14,485 INFO L129 PetriNetUnfolder]: 336/1518 cut-off events. [2021-11-07 07:29:14,486 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-11-07 07:29:14,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2284 conditions, 1518 events. 336/1518 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10093 event pairs, 124 based on Foata normal form. 1/1316 useless extension candidates. Maximal degree in co-relation 2278. Up to 335 conditions per place. [2021-11-07 07:29:14,507 INFO L132 encePairwiseOnDemand]: 200/209 looper letters, 91 selfloop transitions, 7 changer transitions 0/246 dead transitions. [2021-11-07 07:29:14,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 246 transitions, 775 flow [2021-11-07 07:29:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:29:14,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-07 07:29:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1054 transitions. [2021-11-07 07:29:14,518 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8405103668261563 [2021-11-07 07:29:14,519 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1054 transitions. [2021-11-07 07:29:14,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1054 transitions. [2021-11-07 07:29:14,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:14,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1054 transitions. [2021-11-07 07:29:14,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,532 INFO L186 Difference]: Start difference. First operand has 183 places, 184 transitions, 398 flow. Second operand 6 states and 1054 transitions. [2021-11-07 07:29:14,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 246 transitions, 775 flow [2021-11-07 07:29:14,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 246 transitions, 762 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-07 07:29:14,549 INFO L242 Difference]: Finished difference. Result has 190 places, 188 transitions, 440 flow [2021-11-07 07:29:14,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=440, PETRI_PLACES=190, PETRI_TRANSITIONS=188} [2021-11-07 07:29:14,550 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 5 predicate places. [2021-11-07 07:29:14,550 INFO L470 AbstractCegarLoop]: Abstraction has has 190 places, 188 transitions, 440 flow [2021-11-07 07:29:14,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,552 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:14,552 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] [2021-11-07 07:29:14,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:29:14,553 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:14,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash -799524275, now seen corresponding path program 2 times [2021-11-07 07:29:14,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:14,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489021385] [2021-11-07 07:29:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:14,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:14,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:14,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489021385] [2021-11-07 07:29:14,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489021385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:14,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:14,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:29:14,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520936043] [2021-11-07 07:29:14,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:29:14,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:14,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:29:14,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:29:14,927 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209 [2021-11-07 07:29:14,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 188 transitions, 440 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:14,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209 [2021-11-07 07:29:14,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:15,208 INFO L129 PetriNetUnfolder]: 140/843 cut-off events. [2021-11-07 07:29:15,209 INFO L130 PetriNetUnfolder]: For 199/250 co-relation queries the response was YES. [2021-11-07 07:29:15,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 843 events. 140/843 cut-off events. For 199/250 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5317 event pairs, 87 based on Foata normal form. 51/832 useless extension candidates. Maximal degree in co-relation 1296. Up to 222 conditions per place. [2021-11-07 07:29:15,220 INFO L132 encePairwiseOnDemand]: 204/209 looper letters, 38 selfloop transitions, 6 changer transitions 0/197 dead transitions. [2021-11-07 07:29:15,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 197 transitions, 556 flow [2021-11-07 07:29:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:29:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-11-07 07:29:15,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 700 transitions. [2021-11-07 07:29:15,224 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8373205741626795 [2021-11-07 07:29:15,227 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 700 transitions. [2021-11-07 07:29:15,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 700 transitions. [2021-11-07 07:29:15,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:15,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 700 transitions. [2021-11-07 07:29:15,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:15,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:15,239 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:15,239 INFO L186 Difference]: Start difference. First operand has 190 places, 188 transitions, 440 flow. Second operand 4 states and 700 transitions. [2021-11-07 07:29:15,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 197 transitions, 556 flow [2021-11-07 07:29:15,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 197 transitions, 546 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-11-07 07:29:15,250 INFO L242 Difference]: Finished difference. Result has 192 places, 187 transitions, 442 flow [2021-11-07 07:29:15,251 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=442, PETRI_PLACES=192, PETRI_TRANSITIONS=187} [2021-11-07 07:29:15,251 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 7 predicate places. [2021-11-07 07:29:15,252 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 187 transitions, 442 flow [2021-11-07 07:29:15,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:15,253 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:15,253 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] [2021-11-07 07:29:15,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:29:15,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:15,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:15,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1062661151, now seen corresponding path program 1 times [2021-11-07 07:29:15,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:15,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002432210] [2021-11-07 07:29:15,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:15,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:15,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:15,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002432210] [2021-11-07 07:29:15,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002432210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:15,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:15,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:29:15,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035554691] [2021-11-07 07:29:15,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:29:15,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:15,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:29:15,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:29:15,566 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 209 [2021-11-07 07:29:15,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 187 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:15,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:15,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 209 [2021-11-07 07:29:15,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:16,021 INFO L129 PetriNetUnfolder]: 147/856 cut-off events. [2021-11-07 07:29:16,022 INFO L130 PetriNetUnfolder]: For 255/310 co-relation queries the response was YES. [2021-11-07 07:29:16,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 856 events. 147/856 cut-off events. For 255/310 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5352 event pairs, 79 based on Foata normal form. 55/849 useless extension candidates. Maximal degree in co-relation 1353. Up to 203 conditions per place. [2021-11-07 07:29:16,033 INFO L132 encePairwiseOnDemand]: 200/209 looper letters, 46 selfloop transitions, 10 changer transitions 0/208 dead transitions. [2021-11-07 07:29:16,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 208 transitions, 626 flow [2021-11-07 07:29:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:29:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-07 07:29:16,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1197 transitions. [2021-11-07 07:29:16,040 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-11-07 07:29:16,041 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1197 transitions. [2021-11-07 07:29:16,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1197 transitions. [2021-11-07 07:29:16,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:16,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1197 transitions. [2021-11-07 07:29:16,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:16,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:16,058 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:16,058 INFO L186 Difference]: Start difference. First operand has 192 places, 187 transitions, 442 flow. Second operand 7 states and 1197 transitions. [2021-11-07 07:29:16,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 208 transitions, 626 flow [2021-11-07 07:29:16,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 208 transitions, 614 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-07 07:29:16,072 INFO L242 Difference]: Finished difference. Result has 199 places, 190 transitions, 477 flow [2021-11-07 07:29:16,073 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=477, PETRI_PLACES=199, PETRI_TRANSITIONS=190} [2021-11-07 07:29:16,074 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 14 predicate places. [2021-11-07 07:29:16,074 INFO L470 AbstractCegarLoop]: Abstraction has has 199 places, 190 transitions, 477 flow [2021-11-07 07:29:16,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:16,075 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:16,075 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] [2021-11-07 07:29:16,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:29:16,076 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:16,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:16,077 INFO L85 PathProgramCache]: Analyzing trace with hash -152937327, now seen corresponding path program 1 times [2021-11-07 07:29:16,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:16,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925563433] [2021-11-07 07:29:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:16,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:16,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:16,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:16,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925563433] [2021-11-07 07:29:16,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925563433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:16,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:16,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:29:16,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113340889] [2021-11-07 07:29:16,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:29:16,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:29:16,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:29:16,385 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 209 [2021-11-07 07:29:16,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 190 transitions, 477 flow. Second operand has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:16,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:16,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 209 [2021-11-07 07:29:16,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:16,971 INFO L129 PetriNetUnfolder]: 411/1906 cut-off events. [2021-11-07 07:29:16,971 INFO L130 PetriNetUnfolder]: For 573/573 co-relation queries the response was YES. [2021-11-07 07:29:16,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 1906 events. 411/1906 cut-off events. For 573/573 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 13577 event pairs, 188 based on Foata normal form. 11/1792 useless extension candidates. Maximal degree in co-relation 3248. Up to 436 conditions per place. [2021-11-07 07:29:16,995 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 76 selfloop transitions, 11 changer transitions 0/236 dead transitions. [2021-11-07 07:29:16,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 236 transitions, 806 flow [2021-11-07 07:29:16,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:29:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-07 07:29:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1206 transitions. [2021-11-07 07:29:17,002 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8243335611756665 [2021-11-07 07:29:17,002 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1206 transitions. [2021-11-07 07:29:17,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1206 transitions. [2021-11-07 07:29:17,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:17,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1206 transitions. [2021-11-07 07:29:17,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 172.28571428571428) internal successors, (1206), 7 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,015 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,015 INFO L186 Difference]: Start difference. First operand has 199 places, 190 transitions, 477 flow. Second operand 7 states and 1206 transitions. [2021-11-07 07:29:17,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 236 transitions, 806 flow [2021-11-07 07:29:17,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 236 transitions, 793 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-07 07:29:17,029 INFO L242 Difference]: Finished difference. Result has 206 places, 195 transitions, 537 flow [2021-11-07 07:29:17,030 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=537, PETRI_PLACES=206, PETRI_TRANSITIONS=195} [2021-11-07 07:29:17,030 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 21 predicate places. [2021-11-07 07:29:17,031 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 195 transitions, 537 flow [2021-11-07 07:29:17,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:17,032 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] [2021-11-07 07:29:17,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:29:17,033 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:17,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash 179382645, now seen corresponding path program 2 times [2021-11-07 07:29:17,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:17,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317867666] [2021-11-07 07:29:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:17,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:17,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:17,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317867666] [2021-11-07 07:29:17,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317867666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:17,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:17,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:29:17,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140474707] [2021-11-07 07:29:17,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:29:17,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:17,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:29:17,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:29:17,256 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 209 [2021-11-07 07:29:17,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 195 transitions, 537 flow. Second operand has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:17,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 209 [2021-11-07 07:29:17,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:17,946 INFO L129 PetriNetUnfolder]: 438/2048 cut-off events. [2021-11-07 07:29:17,946 INFO L130 PetriNetUnfolder]: For 1521/1521 co-relation queries the response was YES. [2021-11-07 07:29:17,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3820 conditions, 2048 events. 438/2048 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 14858 event pairs, 224 based on Foata normal form. 1/1907 useless extension candidates. Maximal degree in co-relation 3802. Up to 401 conditions per place. [2021-11-07 07:29:17,974 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 79 selfloop transitions, 15 changer transitions 0/243 dead transitions. [2021-11-07 07:29:17,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 243 transitions, 948 flow [2021-11-07 07:29:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:29:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-07 07:29:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 883 transitions. [2021-11-07 07:29:17,980 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8449760765550239 [2021-11-07 07:29:17,980 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 883 transitions. [2021-11-07 07:29:17,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 883 transitions. [2021-11-07 07:29:17,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:17,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 883 transitions. [2021-11-07 07:29:17,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.6) internal successors, (883), 5 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,993 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,994 INFO L186 Difference]: Start difference. First operand has 206 places, 195 transitions, 537 flow. Second operand 5 states and 883 transitions. [2021-11-07 07:29:17,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 243 transitions, 948 flow [2021-11-07 07:29:18,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 243 transitions, 929 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-07 07:29:18,010 INFO L242 Difference]: Finished difference. Result has 211 places, 202 transitions, 659 flow [2021-11-07 07:29:18,011 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=659, PETRI_PLACES=211, PETRI_TRANSITIONS=202} [2021-11-07 07:29:18,011 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 26 predicate places. [2021-11-07 07:29:18,012 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 202 transitions, 659 flow [2021-11-07 07:29:18,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:18,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:18,013 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] [2021-11-07 07:29:18,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:29:18,014 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:18,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:18,015 INFO L85 PathProgramCache]: Analyzing trace with hash -391349879, now seen corresponding path program 3 times [2021-11-07 07:29:18,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:18,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436406053] [2021-11-07 07:29:18,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:18,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:18,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:18,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436406053] [2021-11-07 07:29:18,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436406053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:18,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:18,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:29:18,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768327119] [2021-11-07 07:29:18,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:29:18,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:18,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:29:18,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:29:18,273 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 209 [2021-11-07 07:29:18,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 202 transitions, 659 flow. Second operand has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:18,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:18,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 209 [2021-11-07 07:29:18,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:18,886 INFO L129 PetriNetUnfolder]: 437/2048 cut-off events. [2021-11-07 07:29:18,886 INFO L130 PetriNetUnfolder]: For 2422/2423 co-relation queries the response was YES. [2021-11-07 07:29:18,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4068 conditions, 2048 events. 437/2048 cut-off events. For 2422/2423 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 15043 event pairs, 249 based on Foata normal form. 2/1908 useless extension candidates. Maximal degree in co-relation 4047. Up to 635 conditions per place. [2021-11-07 07:29:18,921 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 58 selfloop transitions, 20 changer transitions 0/227 dead transitions. [2021-11-07 07:29:18,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 227 transitions, 961 flow [2021-11-07 07:29:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:29:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-07 07:29:18,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 867 transitions. [2021-11-07 07:29:18,927 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8296650717703349 [2021-11-07 07:29:18,927 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 867 transitions. [2021-11-07 07:29:18,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 867 transitions. [2021-11-07 07:29:18,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:18,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 867 transitions. [2021-11-07 07:29:18,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.4) internal successors, (867), 5 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:18,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:18,939 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:18,939 INFO L186 Difference]: Start difference. First operand has 211 places, 202 transitions, 659 flow. Second operand 5 states and 867 transitions. [2021-11-07 07:29:18,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 227 transitions, 961 flow [2021-11-07 07:29:19,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 227 transitions, 942 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-11-07 07:29:19,021 INFO L242 Difference]: Finished difference. Result has 217 places, 209 transitions, 801 flow [2021-11-07 07:29:19,022 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=801, PETRI_PLACES=217, PETRI_TRANSITIONS=209} [2021-11-07 07:29:19,023 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 32 predicate places. [2021-11-07 07:29:19,023 INFO L470 AbstractCegarLoop]: Abstraction has has 217 places, 209 transitions, 801 flow [2021-11-07 07:29:19,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:19,024 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:19,025 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] [2021-11-07 07:29:19,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 07:29:19,025 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:19,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1143812497, now seen corresponding path program 4 times [2021-11-07 07:29:19,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:19,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089588355] [2021-11-07 07:29:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:19,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:19,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:19,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089588355] [2021-11-07 07:29:19,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089588355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:19,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:19,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:29:19,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930628665] [2021-11-07 07:29:19,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:29:19,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:19,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:29:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:29:19,393 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 209 [2021-11-07 07:29:19,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 209 transitions, 801 flow. Second operand has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:19,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:19,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 209 [2021-11-07 07:29:19,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:20,145 INFO L129 PetriNetUnfolder]: 446/2161 cut-off events. [2021-11-07 07:29:20,145 INFO L130 PetriNetUnfolder]: For 3017/3017 co-relation queries the response was YES. [2021-11-07 07:29:20,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4383 conditions, 2161 events. 446/2161 cut-off events. For 3017/3017 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 16541 event pairs, 182 based on Foata normal form. 11/2020 useless extension candidates. Maximal degree in co-relation 4359. Up to 409 conditions per place. [2021-11-07 07:29:20,183 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 89 selfloop transitions, 18 changer transitions 0/256 dead transitions. [2021-11-07 07:29:20,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 256 transitions, 1171 flow [2021-11-07 07:29:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:29:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-07 07:29:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1052 transitions. [2021-11-07 07:29:20,189 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8389154704944178 [2021-11-07 07:29:20,190 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1052 transitions. [2021-11-07 07:29:20,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1052 transitions. [2021-11-07 07:29:20,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:20,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1052 transitions. [2021-11-07 07:29:20,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:20,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:20,203 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:20,203 INFO L186 Difference]: Start difference. First operand has 217 places, 209 transitions, 801 flow. Second operand 6 states and 1052 transitions. [2021-11-07 07:29:20,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 256 transitions, 1171 flow [2021-11-07 07:29:20,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 256 transitions, 1125 flow, removed 16 selfloop flow, removed 1 redundant places. [2021-11-07 07:29:20,234 INFO L242 Difference]: Finished difference. Result has 224 places, 211 transitions, 825 flow [2021-11-07 07:29:20,235 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=825, PETRI_PLACES=224, PETRI_TRANSITIONS=211} [2021-11-07 07:29:20,235 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 39 predicate places. [2021-11-07 07:29:20,236 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 211 transitions, 825 flow [2021-11-07 07:29:20,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:20,237 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:20,237 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] [2021-11-07 07:29:20,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:29:20,238 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:20,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash 498152015, now seen corresponding path program 5 times [2021-11-07 07:29:20,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:20,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009418231] [2021-11-07 07:29:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:20,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:20,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:20,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009418231] [2021-11-07 07:29:20,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009418231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:20,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:20,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:29:20,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765796012] [2021-11-07 07:29:20,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:29:20,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:20,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:29:20,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:29:20,522 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 209 [2021-11-07 07:29:20,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 211 transitions, 825 flow. Second operand has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:20,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:20,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 209 [2021-11-07 07:29:20,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:21,232 INFO L129 PetriNetUnfolder]: 448/2066 cut-off events. [2021-11-07 07:29:21,232 INFO L130 PetriNetUnfolder]: For 3400/3401 co-relation queries the response was YES. [2021-11-07 07:29:21,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4242 conditions, 2066 events. 448/2066 cut-off events. For 3400/3401 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 15202 event pairs, 240 based on Foata normal form. 12/1934 useless extension candidates. Maximal degree in co-relation 4215. Up to 624 conditions per place. [2021-11-07 07:29:21,263 INFO L132 encePairwiseOnDemand]: 202/209 looper letters, 70 selfloop transitions, 20 changer transitions 0/239 dead transitions. [2021-11-07 07:29:21,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 239 transitions, 1105 flow [2021-11-07 07:29:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:29:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-07 07:29:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1039 transitions. [2021-11-07 07:29:21,269 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.828548644338118 [2021-11-07 07:29:21,270 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1039 transitions. [2021-11-07 07:29:21,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1039 transitions. [2021-11-07 07:29:21,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:21,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1039 transitions. [2021-11-07 07:29:21,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,282 INFO L186 Difference]: Start difference. First operand has 224 places, 211 transitions, 825 flow. Second operand 6 states and 1039 transitions. [2021-11-07 07:29:21,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 239 transitions, 1105 flow [2021-11-07 07:29:21,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 239 transitions, 1069 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-11-07 07:29:21,308 INFO L242 Difference]: Finished difference. Result has 230 places, 213 transitions, 881 flow [2021-11-07 07:29:21,309 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=881, PETRI_PLACES=230, PETRI_TRANSITIONS=213} [2021-11-07 07:29:21,309 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 45 predicate places. [2021-11-07 07:29:21,309 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 213 transitions, 881 flow [2021-11-07 07:29:21,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,310 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:21,311 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] [2021-11-07 07:29:21,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 07:29:21,311 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:21,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1597094067, now seen corresponding path program 1 times [2021-11-07 07:29:21,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:21,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912298926] [2021-11-07 07:29:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:21,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:21,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:21,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912298926] [2021-11-07 07:29:21,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912298926] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:21,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110293366] [2021-11-07 07:29:21,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:21,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:21,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:21,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:21,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:29:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:21,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:29:21,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:29:22,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110293366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:22,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:29:22,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2021-11-07 07:29:22,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740095917] [2021-11-07 07:29:22,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:29:22,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:22,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:29:22,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:29:22,558 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 209 [2021-11-07 07:29:22,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 213 transitions, 881 flow. Second operand has 8 states, 8 states have (on average 143.625) internal successors, (1149), 8 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:22,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:22,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 209 [2021-11-07 07:29:22,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:23,253 INFO L129 PetriNetUnfolder]: 235/1434 cut-off events. [2021-11-07 07:29:23,254 INFO L130 PetriNetUnfolder]: For 1366/1382 co-relation queries the response was YES. [2021-11-07 07:29:23,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1434 events. 235/1434 cut-off events. For 1366/1382 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10069 event pairs, 120 based on Foata normal form. 2/1338 useless extension candidates. Maximal degree in co-relation 2605. Up to 377 conditions per place. [2021-11-07 07:29:23,278 INFO L132 encePairwiseOnDemand]: 189/209 looper letters, 44 selfloop transitions, 13 changer transitions 13/231 dead transitions. [2021-11-07 07:29:23,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 231 transitions, 1058 flow [2021-11-07 07:29:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:29:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-07 07:29:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1482 transitions. [2021-11-07 07:29:23,287 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7090909090909091 [2021-11-07 07:29:23,288 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1482 transitions. [2021-11-07 07:29:23,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1482 transitions. [2021-11-07 07:29:23,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:23,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1482 transitions. [2021-11-07 07:29:23,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:23,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 209.0) internal successors, (2299), 11 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:23,307 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 209.0) internal successors, (2299), 11 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:23,307 INFO L186 Difference]: Start difference. First operand has 230 places, 213 transitions, 881 flow. Second operand 10 states and 1482 transitions. [2021-11-07 07:29:23,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 231 transitions, 1058 flow [2021-11-07 07:29:23,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 231 transitions, 1013 flow, removed 9 selfloop flow, removed 2 redundant places. [2021-11-07 07:29:23,330 INFO L242 Difference]: Finished difference. Result has 241 places, 214 transitions, 882 flow [2021-11-07 07:29:23,331 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=882, PETRI_PLACES=241, PETRI_TRANSITIONS=214} [2021-11-07 07:29:23,331 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 56 predicate places. [2021-11-07 07:29:23,332 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 214 transitions, 882 flow [2021-11-07 07:29:23,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 143.625) internal successors, (1149), 8 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:23,333 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:23,333 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] [2021-11-07 07:29:23,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:23,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:23,560 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash -705753619, now seen corresponding path program 1 times [2021-11-07 07:29:23,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:23,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391810452] [2021-11-07 07:29:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:23,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:23,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:29:23,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:23,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391810452] [2021-11-07 07:29:23,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391810452] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:23,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840259018] [2021-11-07 07:29:23,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:23,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:23,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:23,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:24,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:29:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:24,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-07 07:29:24,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:26,265 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-07 07:29:26,267 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 23 treesize of output 16 [2021-11-07 07:29:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:26,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840259018] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:26,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:26,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 23] total 29 [2021-11-07 07:29:26,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598440460] [2021-11-07 07:29:26,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:29:26,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:26,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:29:26,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:29:26,490 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 209 [2021-11-07 07:29:26,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 214 transitions, 882 flow. Second operand has 29 states, 29 states have (on average 61.55172413793103) internal successors, (1785), 29 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:26,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:26,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 209 [2021-11-07 07:29:26,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:49,459 INFO L129 PetriNetUnfolder]: 20875/40619 cut-off events. [2021-11-07 07:29:49,459 INFO L130 PetriNetUnfolder]: For 43451/43466 co-relation queries the response was YES. [2021-11-07 07:29:49,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95292 conditions, 40619 events. 20875/40619 cut-off events. For 43451/43466 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 389790 event pairs, 1556 based on Foata normal form. 23/40030 useless extension candidates. Maximal degree in co-relation 95258. Up to 6767 conditions per place. [2021-11-07 07:29:50,257 INFO L132 encePairwiseOnDemand]: 139/209 looper letters, 1511 selfloop transitions, 453 changer transitions 220/2232 dead transitions. [2021-11-07 07:29:50,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 2232 transitions, 12599 flow [2021-11-07 07:29:50,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2021-11-07 07:29:50,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2021-11-07 07:29:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 9560 transitions. [2021-11-07 07:29:50,301 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.34135542383774903 [2021-11-07 07:29:50,301 INFO L72 ComplementDD]: Start complementDD. Operand 134 states and 9560 transitions. [2021-11-07 07:29:50,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 9560 transitions. [2021-11-07 07:29:50,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:50,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 134 states and 9560 transitions. [2021-11-07 07:29:50,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 135 states, 134 states have (on average 71.34328358208955) internal successors, (9560), 134 states have internal predecessors, (9560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:50,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 135 states, 135 states have (on average 209.0) internal successors, (28215), 135 states have internal predecessors, (28215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:50,452 INFO L81 ComplementDD]: Finished complementDD. Result has 135 states, 135 states have (on average 209.0) internal successors, (28215), 135 states have internal predecessors, (28215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:50,452 INFO L186 Difference]: Start difference. First operand has 241 places, 214 transitions, 882 flow. Second operand 134 states and 9560 transitions. [2021-11-07 07:29:50,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 2232 transitions, 12599 flow [2021-11-07 07:29:51,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 2232 transitions, 11901 flow, removed 262 selfloop flow, removed 7 redundant places. [2021-11-07 07:29:51,345 INFO L242 Difference]: Finished difference. Result has 451 places, 674 transitions, 5295 flow [2021-11-07 07:29:51,346 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=134, PETRI_FLOW=5295, PETRI_PLACES=451, PETRI_TRANSITIONS=674} [2021-11-07 07:29:51,346 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 266 predicate places. [2021-11-07 07:29:51,346 INFO L470 AbstractCegarLoop]: Abstraction has has 451 places, 674 transitions, 5295 flow [2021-11-07 07:29:51,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 61.55172413793103) internal successors, (1785), 29 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:51,348 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:51,348 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] [2021-11-07 07:29:51,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:51,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-07 07:29:51,564 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:51,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:51,565 INFO L85 PathProgramCache]: Analyzing trace with hash 664374251, now seen corresponding path program 2 times [2021-11-07 07:29:51,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:51,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102316380] [2021-11-07 07:29:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:51,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:29:51,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:51,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102316380] [2021-11-07 07:29:51,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102316380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:51,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:51,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 07:29:51,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353741463] [2021-11-07 07:29:51,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:29:51,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:51,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:29:51,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:29:51,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 209 [2021-11-07 07:29:51,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 674 transitions, 5295 flow. Second operand has 9 states, 9 states have (on average 164.77777777777777) internal successors, (1483), 9 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:51,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:51,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 209 [2021-11-07 07:29:51,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:29:56,561 INFO L129 PetriNetUnfolder]: 1682/8145 cut-off events. [2021-11-07 07:29:56,561 INFO L130 PetriNetUnfolder]: For 53132/53405 co-relation queries the response was YES. [2021-11-07 07:29:56,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28987 conditions, 8145 events. 1682/8145 cut-off events. For 53132/53405 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 86036 event pairs, 290 based on Foata normal form. 153/7976 useless extension candidates. Maximal degree in co-relation 28869. Up to 1196 conditions per place. [2021-11-07 07:29:56,935 INFO L132 encePairwiseOnDemand]: 195/209 looper letters, 154 selfloop transitions, 53 changer transitions 0/769 dead transitions. [2021-11-07 07:29:56,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 769 transitions, 6768 flow [2021-11-07 07:29:56,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:29:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-07 07:29:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1879 transitions. [2021-11-07 07:29:56,942 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8173118747281427 [2021-11-07 07:29:56,942 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1879 transitions. [2021-11-07 07:29:56,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1879 transitions. [2021-11-07 07:29:56,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:29:56,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1879 transitions. [2021-11-07 07:29:56,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 170.8181818181818) internal successors, (1879), 11 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:56,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 209.0) internal successors, (2508), 12 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:56,957 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 209.0) internal successors, (2508), 12 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:56,957 INFO L186 Difference]: Start difference. First operand has 451 places, 674 transitions, 5295 flow. Second operand 11 states and 1879 transitions. [2021-11-07 07:29:56,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 769 transitions, 6768 flow [2021-11-07 07:29:57,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 769 transitions, 6538 flow, removed 108 selfloop flow, removed 12 redundant places. [2021-11-07 07:29:57,609 INFO L242 Difference]: Finished difference. Result has 435 places, 710 transitions, 5939 flow [2021-11-07 07:29:57,611 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5119, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5939, PETRI_PLACES=435, PETRI_TRANSITIONS=710} [2021-11-07 07:29:57,611 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 250 predicate places. [2021-11-07 07:29:57,612 INFO L470 AbstractCegarLoop]: Abstraction has has 435 places, 710 transitions, 5939 flow [2021-11-07 07:29:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 164.77777777777777) internal successors, (1483), 9 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:57,613 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:29:57,613 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] [2021-11-07 07:29:57,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 07:29:57,614 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:29:57,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1981999277, now seen corresponding path program 3 times [2021-11-07 07:29:57,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:57,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568604603] [2021-11-07 07:29:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:57,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:57,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:29:57,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:57,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568604603] [2021-11-07 07:29:57,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568604603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:29:57,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:29:57,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 07:29:57,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605744490] [2021-11-07 07:29:57,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:29:57,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:29:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:29:57,921 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 209 [2021-11-07 07:29:57,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 710 transitions, 5939 flow. Second operand has 9 states, 9 states have (on average 164.77777777777777) internal successors, (1483), 9 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:57,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:29:57,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 209 [2021-11-07 07:29:57,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:30:01,686 INFO L129 PetriNetUnfolder]: 1632/7757 cut-off events. [2021-11-07 07:30:01,686 INFO L130 PetriNetUnfolder]: For 54958/55258 co-relation queries the response was YES. [2021-11-07 07:30:02,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29391 conditions, 7757 events. 1632/7757 cut-off events. For 54958/55258 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 80859 event pairs, 362 based on Foata normal form. 123/7595 useless extension candidates. Maximal degree in co-relation 29268. Up to 1009 conditions per place. [2021-11-07 07:30:02,155 INFO L132 encePairwiseOnDemand]: 194/209 looper letters, 81 selfloop transitions, 123 changer transitions 0/766 dead transitions. [2021-11-07 07:30:02,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 766 transitions, 6942 flow [2021-11-07 07:30:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:30:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-07 07:30:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2187 transitions. [2021-11-07 07:30:02,162 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.804931910195068 [2021-11-07 07:30:02,163 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2187 transitions. [2021-11-07 07:30:02,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2187 transitions. [2021-11-07 07:30:02,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:30:02,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2187 transitions. [2021-11-07 07:30:02,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 168.23076923076923) internal successors, (2187), 13 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:02,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 209.0) internal successors, (2926), 14 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:02,182 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 209.0) internal successors, (2926), 14 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:02,182 INFO L186 Difference]: Start difference. First operand has 435 places, 710 transitions, 5939 flow. Second operand 13 states and 2187 transitions. [2021-11-07 07:30:02,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 766 transitions, 6942 flow [2021-11-07 07:30:02,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 766 transitions, 6906 flow, removed 18 selfloop flow, removed 0 redundant places. [2021-11-07 07:30:02,650 INFO L242 Difference]: Finished difference. Result has 454 places, 728 transitions, 6495 flow [2021-11-07 07:30:02,652 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5915, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6495, PETRI_PLACES=454, PETRI_TRANSITIONS=728} [2021-11-07 07:30:02,652 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 269 predicate places. [2021-11-07 07:30:02,652 INFO L470 AbstractCegarLoop]: Abstraction has has 454 places, 728 transitions, 6495 flow [2021-11-07 07:30:02,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 164.77777777777777) internal successors, (1483), 9 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:02,653 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:30:02,653 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] [2021-11-07 07:30:02,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 07:30:02,654 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:30:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash 242970657, now seen corresponding path program 4 times [2021-11-07 07:30:02,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:02,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081596588] [2021-11-07 07:30:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:02,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:30:03,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:03,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081596588] [2021-11-07 07:30:03,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081596588] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:03,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194462637] [2021-11-07 07:30:03,132 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:30:03,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:03,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:03,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:03,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 07:30:03,465 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:30:03,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:03,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-07 07:30:03,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:05,640 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-07 07:30:05,641 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 23 treesize of output 16 [2021-11-07 07:30:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:05,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194462637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:05,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:05,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 23] total 29 [2021-11-07 07:30:05,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994973232] [2021-11-07 07:30:05,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:30:05,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:30:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:30:05,817 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 209 [2021-11-07 07:30:05,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 728 transitions, 6495 flow. Second operand has 29 states, 29 states have (on average 61.55172413793103) internal successors, (1785), 29 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:05,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:30:05,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 209 [2021-11-07 07:30:05,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:30:49,340 INFO L129 PetriNetUnfolder]: 32322/63203 cut-off events. [2021-11-07 07:30:49,340 INFO L130 PetriNetUnfolder]: For 462682/462938 co-relation queries the response was YES. [2021-11-07 07:30:51,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268965 conditions, 63203 events. 32322/63203 cut-off events. For 462682/462938 co-relation queries the response was YES. Maximal size of possible extension queue 1341. Compared 648492 event pairs, 2970 based on Foata normal form. 646/62662 useless extension candidates. Maximal degree in co-relation 268835. Up to 17148 conditions per place. [2021-11-07 07:30:52,191 INFO L132 encePairwiseOnDemand]: 147/209 looper letters, 2008 selfloop transitions, 769 changer transitions 18/2847 dead transitions. [2021-11-07 07:30:52,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 2847 transitions, 28892 flow [2021-11-07 07:30:52,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-11-07 07:30:52,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2021-11-07 07:30:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 9688 transitions. [2021-11-07 07:30:52,218 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.33835085390982433 [2021-11-07 07:30:52,218 INFO L72 ComplementDD]: Start complementDD. Operand 137 states and 9688 transitions. [2021-11-07 07:30:52,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 9688 transitions. [2021-11-07 07:30:52,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:30:52,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 137 states and 9688 transitions. [2021-11-07 07:30:52,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 138 states, 137 states have (on average 70.71532846715328) internal successors, (9688), 137 states have internal predecessors, (9688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:52,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 138 states, 138 states have (on average 209.0) internal successors, (28842), 138 states have internal predecessors, (28842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:52,307 INFO L81 ComplementDD]: Finished complementDD. Result has 138 states, 138 states have (on average 209.0) internal successors, (28842), 138 states have internal predecessors, (28842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:52,307 INFO L186 Difference]: Start difference. First operand has 454 places, 728 transitions, 6495 flow. Second operand 137 states and 9688 transitions. [2021-11-07 07:30:52,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 2847 transitions, 28892 flow [2021-11-07 07:31:00,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 2847 transitions, 28454 flow, removed 78 selfloop flow, removed 7 redundant places. [2021-11-07 07:31:00,226 INFO L242 Difference]: Finished difference. Result has 650 places, 1194 transitions, 13629 flow [2021-11-07 07:31:00,227 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=6238, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=13629, PETRI_PLACES=650, PETRI_TRANSITIONS=1194} [2021-11-07 07:31:00,227 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 465 predicate places. [2021-11-07 07:31:00,227 INFO L470 AbstractCegarLoop]: Abstraction has has 650 places, 1194 transitions, 13629 flow [2021-11-07 07:31:00,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 61.55172413793103) internal successors, (1785), 29 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:00,228 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:31:00,228 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] [2021-11-07 07:31:00,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:31:00,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 07:31:00,429 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:31:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1943680759, now seen corresponding path program 5 times [2021-11-07 07:31:00,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:00,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231350779] [2021-11-07 07:31:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:00,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:31:01,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:01,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231350779] [2021-11-07 07:31:01,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231350779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:31:01,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:31:01,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 07:31:01,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792011564] [2021-11-07 07:31:01,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:31:01,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:01,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:31:01,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:31:01,027 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 209 [2021-11-07 07:31:01,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 1194 transitions, 13629 flow. Second operand has 9 states, 9 states have (on average 161.22222222222223) internal successors, (1451), 9 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:01,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 07:31:01,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 209 [2021-11-07 07:31:01,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 07:31:12,697 INFO L129 PetriNetUnfolder]: 3939/15281 cut-off events. [2021-11-07 07:31:12,697 INFO L130 PetriNetUnfolder]: For 283260/283665 co-relation queries the response was YES. [2021-11-07 07:31:13,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84914 conditions, 15281 events. 3939/15281 cut-off events. For 283260/283665 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 173863 event pairs, 1217 based on Foata normal form. 113/14734 useless extension candidates. Maximal degree in co-relation 84718. Up to 3748 conditions per place. [2021-11-07 07:31:13,483 INFO L132 encePairwiseOnDemand]: 196/209 looper letters, 308 selfloop transitions, 154 changer transitions 0/1297 dead transitions. [2021-11-07 07:31:13,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 1297 transitions, 16059 flow [2021-11-07 07:31:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:31:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-07 07:31:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1840 transitions. [2021-11-07 07:31:13,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8003479773814702 [2021-11-07 07:31:13,488 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1840 transitions. [2021-11-07 07:31:13,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1840 transitions. [2021-11-07 07:31:13,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:31:13,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1840 transitions. [2021-11-07 07:31:13,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 167.27272727272728) internal successors, (1840), 11 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:13,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 209.0) internal successors, (2508), 12 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:13,499 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 209.0) internal successors, (2508), 12 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:13,499 INFO L186 Difference]: Start difference. First operand has 650 places, 1194 transitions, 13629 flow. Second operand 11 states and 1840 transitions. [2021-11-07 07:31:13,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 1297 transitions, 16059 flow [2021-11-07 07:31:16,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 1297 transitions, 13783 flow, removed 932 selfloop flow, removed 27 redundant places. [2021-11-07 07:31:16,799 INFO L242 Difference]: Finished difference. Result has 636 places, 1236 transitions, 12422 flow [2021-11-07 07:31:16,801 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=11396, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12422, PETRI_PLACES=636, PETRI_TRANSITIONS=1236} [2021-11-07 07:31:16,802 INFO L334 CegarLoopForPetriNet]: 185 programPoint places, 451 predicate places. [2021-11-07 07:31:16,802 INFO L470 AbstractCegarLoop]: Abstraction has has 636 places, 1236 transitions, 12422 flow [2021-11-07 07:31:16,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 161.22222222222223) internal successors, (1451), 9 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:16,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 07:31:16,803 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] [2021-11-07 07:31:16,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 07:31:16,804 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-07 07:31:16,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:16,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2146847785, now seen corresponding path program 6 times [2021-11-07 07:31:16,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:16,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789137200] [2021-11-07 07:31:16,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:16,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:31:17,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:17,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789137200] [2021-11-07 07:31:17,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789137200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:17,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692659436] [2021-11-07 07:31:17,228 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:31:17,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:17,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:17,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f5e639c-a94f-46b8-9497-45d90bb6971f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)