./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro --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 40f0a1ff0b59c9897722e1cc89a9065b61569e5c28581990c7adb84261d57e0b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:24:05,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:24:05,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:24:05,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:24:05,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:24:05,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:24:05,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:24:05,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:24:05,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:24:05,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:24:05,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:24:05,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:24:05,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:24:05,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:24:05,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:24:05,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:24:05,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:24:05,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:24:05,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:24:05,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:24:05,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:24:05,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:24:05,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:24:05,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:24:05,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:24:05,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:24:05,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:24:05,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:24:05,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:24:05,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:24:05,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:24:05,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:24:05,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:24:05,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:24:05,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:24:05,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:24:05,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:24:05,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:24:05,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:24:05,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:24:05,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:24:05,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:24:05,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:24:05,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:24:05,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:24:05,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:24:05,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:24:05,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:24:05,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:24:05,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:24:05,222 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:24:05,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:24:05,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:24:05,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:24:05,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:24:05,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:24:05,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:24:05,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:24:05,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:24:05,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:24:05,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:24:05,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:24:05,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:24:05,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:24:05,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:24:05,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:24:05,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:24:05,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:24:05,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:24:05,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:24:05,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:24:05,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:24:05,231 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:24:05,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:24:05,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:24:05,232 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_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40f0a1ff0b59c9897722e1cc89a9065b61569e5c28581990c7adb84261d57e0b [2022-11-18 18:24:05,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:24:05,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:24:05,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:24:05,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:24:05,571 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:24:05,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 18:24:05,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/data/3a12ef44a/45aaab2f991448ef979f66acde82122a/FLAGa70db7900 [2022-11-18 18:24:06,227 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:24:06,227 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 18:24:06,258 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/data/3a12ef44a/45aaab2f991448ef979f66acde82122a/FLAGa70db7900 [2022-11-18 18:24:06,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/data/3a12ef44a/45aaab2f991448ef979f66acde82122a [2022-11-18 18:24:06,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:24:06,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:24:06,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:24:06,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:24:06,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:24:06,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:06" (1/1) ... [2022-11-18 18:24:06,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6e9c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:06, skipping insertion in model container [2022-11-18 18:24:06,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:24:06" (1/1) ... [2022-11-18 18:24:06,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:24:06,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:24:06,970 WARN L234 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_e8998243-fee1-4699-980f-bda193336489/sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-18 18:24:07,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:24:07,260 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:24:07,271 WARN L234 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_e8998243-fee1-4699-980f-bda193336489/sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-18 18:24:07,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:24:07,356 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:24:07,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07 WrapperNode [2022-11-18 18:24:07,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:24:07,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:24:07,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:24:07,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:24:07,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,407 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-18 18:24:07,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:24:07,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:24:07,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:24:07,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:24:07,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,438 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:24:07,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:24:07,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:24:07,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:24:07,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (1/1) ... [2022-11-18 18:24:07,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:24:07,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:24:07,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:24:07,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8998243-fee1-4699-980f-bda193336489/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:24:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:24:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:24:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:24:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:24:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:24:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 18:24:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 18:24:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 18:24:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 18:24:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 18:24:07,543 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 18:24:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-18 18:24:07,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-18 18:24:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:24:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:24:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:24:07,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:24:07,546 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:24:07,727 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:24:07,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:24:08,218 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:24:08,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:24:08,444 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:24:08,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:08 BoogieIcfgContainer [2022-11-18 18:24:08,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:24:08,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:24:08,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:24:08,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:24:08,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:24:06" (1/3) ... [2022-11-18 18:24:08,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ab6bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:24:08, skipping insertion in model container [2022-11-18 18:24:08,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:24:07" (2/3) ... [2022-11-18 18:24:08,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ab6bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:24:08, skipping insertion in model container [2022-11-18 18:24:08,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:24:08" (3/3) ... [2022-11-18 18:24:08,458 INFO L112 eAbstractionObserver]: Analyzing ICFG mix044_power.oepc_pso.oepc_rmo.oepc.i [2022-11-18 18:24:08,468 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:24:08,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:24:08,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 18:24:08,479 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:24:08,572 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 18:24:08,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-11-18 18:24:08,684 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-18 18:24:08,684 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:24:08,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-18 18:24:08,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-11-18 18:24:08,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-11-18 18:24:08,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:24:08,713 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5faa2db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:24:08,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 18:24:08,726 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-18 18:24:08,726 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:24:08,726 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:08,727 INFO L209 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] [2022-11-18 18:24:08,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 720835662, now seen corresponding path program 1 times [2022-11-18 18:24:08,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:08,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93363953] [2022-11-18 18:24:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:08,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:09,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:09,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93363953] [2022-11-18 18:24:09,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93363953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:09,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:09,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:24:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417296503] [2022-11-18 18:24:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:09,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:24:09,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:09,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:24:09,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:24:09,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-11-18 18:24:09,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:09,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:09,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-11-18 18:24:09,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:09,899 INFO L130 PetriNetUnfolder]: 162/623 cut-off events. [2022-11-18 18:24:09,899 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-18 18:24:09,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 623 events. 162/623 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3442 event pairs, 132 based on Foata normal form. 46/627 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-11-18 18:24:09,913 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 18 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-11-18 18:24:09,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 139 transitions, 339 flow [2022-11-18 18:24:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:24:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:24:09,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-18 18:24:09,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-11-18 18:24:09,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-18 18:24:09,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-18 18:24:09,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:09,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-18 18:24:09,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:09,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:09,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:09,962 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2022-11-18 18:24:09,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 139 transitions, 339 flow [2022-11-18 18:24:09,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:24:09,975 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2022-11-18 18:24:09,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-18 18:24:09,984 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-18 18:24:09,985 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2022-11-18 18:24:09,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:09,986 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:09,986 INFO L209 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] [2022-11-18 18:24:09,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:24:09,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:09,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash 66110700, now seen corresponding path program 1 times [2022-11-18 18:24:09,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:09,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288627134] [2022-11-18 18:24:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:10,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:10,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288627134] [2022-11-18 18:24:10,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288627134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:10,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:10,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:24:10,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234559307] [2022-11-18 18:24:10,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:10,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:24:10,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:10,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:24:10,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:24:10,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-18 18:24:10,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:10,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:10,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-18 18:24:10,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:15,776 INFO L130 PetriNetUnfolder]: 11178/23369 cut-off events. [2022-11-18 18:24:15,777 INFO L131 PetriNetUnfolder]: For 965/965 co-relation queries the response was YES. [2022-11-18 18:24:15,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39832 conditions, 23369 events. 11178/23369 cut-off events. For 965/965 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 226591 event pairs, 1220 based on Foata normal form. 0/22960 useless extension candidates. Maximal degree in co-relation 39771. Up to 4500 conditions per place. [2022-11-18 18:24:15,962 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 45 selfloop transitions, 7 changer transitions 119/260 dead transitions. [2022-11-18 18:24:15,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 260 transitions, 870 flow [2022-11-18 18:24:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:24:15,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:24:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1539 transitions. [2022-11-18 18:24:15,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516878804648589 [2022-11-18 18:24:15,969 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1539 transitions. [2022-11-18 18:24:15,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1539 transitions. [2022-11-18 18:24:15,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:15,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1539 transitions. [2022-11-18 18:24:15,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.38461538461539) internal successors, (1539), 13 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:15,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:15,981 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:15,981 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 13 states and 1539 transitions. [2022-11-18 18:24:15,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 260 transitions, 870 flow [2022-11-18 18:24:15,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 260 transitions, 844 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 18:24:15,991 INFO L231 Difference]: Finished difference. Result has 164 places, 122 transitions, 342 flow [2022-11-18 18:24:15,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=342, PETRI_PLACES=164, PETRI_TRANSITIONS=122} [2022-11-18 18:24:15,992 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 18 predicate places. [2022-11-18 18:24:15,992 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 122 transitions, 342 flow [2022-11-18 18:24:15,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:15,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:15,994 INFO L209 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] [2022-11-18 18:24:15,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:24:15,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash 81081066, now seen corresponding path program 1 times [2022-11-18 18:24:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:15,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345607542] [2022-11-18 18:24:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:16,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:16,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345607542] [2022-11-18 18:24:16,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345607542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:16,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:16,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:24:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993261568] [2022-11-18 18:24:16,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:16,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:24:16,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:16,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:24:16,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:24:16,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-18 18:24:16,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 122 transitions, 342 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:16,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:16,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-18 18:24:16,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:20,132 INFO L130 PetriNetUnfolder]: 7845/14125 cut-off events. [2022-11-18 18:24:20,133 INFO L131 PetriNetUnfolder]: For 25821/25884 co-relation queries the response was YES. [2022-11-18 18:24:20,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41280 conditions, 14125 events. 7845/14125 cut-off events. For 25821/25884 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 112699 event pairs, 1488 based on Foata normal form. 258/13996 useless extension candidates. Maximal degree in co-relation 41207. Up to 4169 conditions per place. [2022-11-18 18:24:20,258 INFO L137 encePairwiseOnDemand]: 126/139 looper letters, 51 selfloop transitions, 17 changer transitions 100/257 dead transitions. [2022-11-18 18:24:20,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 257 transitions, 1404 flow [2022-11-18 18:24:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:24:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:24:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1532 transitions. [2022-11-18 18:24:20,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.84781405644715 [2022-11-18 18:24:20,263 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1532 transitions. [2022-11-18 18:24:20,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1532 transitions. [2022-11-18 18:24:20,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:20,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1532 transitions. [2022-11-18 18:24:20,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.84615384615384) internal successors, (1532), 13 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:20,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:20,274 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:20,274 INFO L175 Difference]: Start difference. First operand has 164 places, 122 transitions, 342 flow. Second operand 13 states and 1532 transitions. [2022-11-18 18:24:20,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 257 transitions, 1404 flow [2022-11-18 18:24:20,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 257 transitions, 1376 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-11-18 18:24:20,349 INFO L231 Difference]: Finished difference. Result has 161 places, 134 transitions, 541 flow [2022-11-18 18:24:20,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=541, PETRI_PLACES=161, PETRI_TRANSITIONS=134} [2022-11-18 18:24:20,351 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 15 predicate places. [2022-11-18 18:24:20,351 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 134 transitions, 541 flow [2022-11-18 18:24:20,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:20,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:20,352 INFO L209 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] [2022-11-18 18:24:20,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:24:20,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash -24700579, now seen corresponding path program 1 times [2022-11-18 18:24:20,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:20,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554399611] [2022-11-18 18:24:20,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:20,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:20,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:20,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:20,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554399611] [2022-11-18 18:24:20,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554399611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:20,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:20,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:24:20,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272803965] [2022-11-18 18:24:20,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:20,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:24:20,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:20,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:24:20,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:24:20,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-18 18:24:20,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 134 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:20,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:20,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-18 18:24:20,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:26,874 INFO L130 PetriNetUnfolder]: 19624/34839 cut-off events. [2022-11-18 18:24:26,874 INFO L131 PetriNetUnfolder]: For 44445/52924 co-relation queries the response was YES. [2022-11-18 18:24:27,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81806 conditions, 34839 events. 19624/34839 cut-off events. For 44445/52924 co-relation queries the response was YES. Maximal size of possible extension queue 2241. Compared 325401 event pairs, 1207 based on Foata normal form. 550/33367 useless extension candidates. Maximal degree in co-relation 81725. Up to 10701 conditions per place. [2022-11-18 18:24:27,288 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 101 selfloop transitions, 20 changer transitions 0/230 dead transitions. [2022-11-18 18:24:27,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 230 transitions, 1177 flow [2022-11-18 18:24:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:24:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 18:24:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1227 transitions. [2022-11-18 18:24:27,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8827338129496403 [2022-11-18 18:24:27,295 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1227 transitions. [2022-11-18 18:24:27,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1227 transitions. [2022-11-18 18:24:27,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:27,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1227 transitions. [2022-11-18 18:24:27,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.7) internal successors, (1227), 10 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:27,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:27,308 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:27,308 INFO L175 Difference]: Start difference. First operand has 161 places, 134 transitions, 541 flow. Second operand 10 states and 1227 transitions. [2022-11-18 18:24:27,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 230 transitions, 1177 flow [2022-11-18 18:24:27,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 230 transitions, 1159 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-18 18:24:27,552 INFO L231 Difference]: Finished difference. Result has 164 places, 152 transitions, 666 flow [2022-11-18 18:24:27,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=666, PETRI_PLACES=164, PETRI_TRANSITIONS=152} [2022-11-18 18:24:27,555 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 18 predicate places. [2022-11-18 18:24:27,555 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 152 transitions, 666 flow [2022-11-18 18:24:27,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:27,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:27,556 INFO L209 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] [2022-11-18 18:24:27,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:24:27,556 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:27,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1671395835, now seen corresponding path program 1 times [2022-11-18 18:24:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:27,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713879317] [2022-11-18 18:24:27,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:27,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:28,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:28,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713879317] [2022-11-18 18:24:28,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713879317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:28,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:28,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:24:28,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752225145] [2022-11-18 18:24:28,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:28,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:24:28,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:28,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:24:28,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:24:28,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-18 18:24:28,091 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 152 transitions, 666 flow. Second operand has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:28,091 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:28,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-18 18:24:28,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:32,682 INFO L130 PetriNetUnfolder]: 9395/23144 cut-off events. [2022-11-18 18:24:32,683 INFO L131 PetriNetUnfolder]: For 42817/46734 co-relation queries the response was YES. [2022-11-18 18:24:33,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67901 conditions, 23144 events. 9395/23144 cut-off events. For 42817/46734 co-relation queries the response was YES. Maximal size of possible extension queue 1483. Compared 266756 event pairs, 2240 based on Foata normal form. 558/22335 useless extension candidates. Maximal degree in co-relation 67827. Up to 3832 conditions per place. [2022-11-18 18:24:33,206 INFO L137 encePairwiseOnDemand]: 127/139 looper letters, 122 selfloop transitions, 46 changer transitions 0/275 dead transitions. [2022-11-18 18:24:33,207 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 275 transitions, 1753 flow [2022-11-18 18:24:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:24:33,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:24:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1519 transitions. [2022-11-18 18:24:33,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8406198118428334 [2022-11-18 18:24:33,215 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1519 transitions. [2022-11-18 18:24:33,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1519 transitions. [2022-11-18 18:24:33,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:33,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1519 transitions. [2022-11-18 18:24:33,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 116.84615384615384) internal successors, (1519), 13 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:33,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:33,224 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:33,225 INFO L175 Difference]: Start difference. First operand has 164 places, 152 transitions, 666 flow. Second operand 13 states and 1519 transitions. [2022-11-18 18:24:33,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 275 transitions, 1753 flow [2022-11-18 18:24:33,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 275 transitions, 1739 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-11-18 18:24:33,535 INFO L231 Difference]: Finished difference. Result has 181 places, 186 transitions, 1220 flow [2022-11-18 18:24:33,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1220, PETRI_PLACES=181, PETRI_TRANSITIONS=186} [2022-11-18 18:24:33,539 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 35 predicate places. [2022-11-18 18:24:33,539 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 186 transitions, 1220 flow [2022-11-18 18:24:33,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:33,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:33,540 INFO L209 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] [2022-11-18 18:24:33,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:24:33,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash 577017939, now seen corresponding path program 1 times [2022-11-18 18:24:33,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:33,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584402288] [2022-11-18 18:24:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:33,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:33,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:33,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584402288] [2022-11-18 18:24:33,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584402288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:33,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:33,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:24:33,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650953682] [2022-11-18 18:24:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:33,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:24:33,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:33,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:24:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:24:33,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-18 18:24:33,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 186 transitions, 1220 flow. Second operand has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:33,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:33,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-18 18:24:33,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:43,202 INFO L130 PetriNetUnfolder]: 27394/49120 cut-off events. [2022-11-18 18:24:43,203 INFO L131 PetriNetUnfolder]: For 134279/148962 co-relation queries the response was YES. [2022-11-18 18:24:43,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159782 conditions, 49120 events. 27394/49120 cut-off events. For 134279/148962 co-relation queries the response was YES. Maximal size of possible extension queue 3173. Compared 490172 event pairs, 1606 based on Foata normal form. 1262/48570 useless extension candidates. Maximal degree in co-relation 159688. Up to 10275 conditions per place. [2022-11-18 18:24:43,712 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 138 selfloop transitions, 38 changer transitions 0/315 dead transitions. [2022-11-18 18:24:43,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 315 transitions, 2410 flow [2022-11-18 18:24:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:24:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:24:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1600 transitions. [2022-11-18 18:24:43,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8854454897620365 [2022-11-18 18:24:43,720 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1600 transitions. [2022-11-18 18:24:43,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1600 transitions. [2022-11-18 18:24:43,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:43,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1600 transitions. [2022-11-18 18:24:43,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.07692307692308) internal successors, (1600), 13 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:43,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:43,741 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:43,741 INFO L175 Difference]: Start difference. First operand has 181 places, 186 transitions, 1220 flow. Second operand 13 states and 1600 transitions. [2022-11-18 18:24:43,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 315 transitions, 2410 flow [2022-11-18 18:24:46,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 315 transitions, 2392 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 18:24:46,851 INFO L231 Difference]: Finished difference. Result has 199 places, 203 transitions, 1453 flow [2022-11-18 18:24:46,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1453, PETRI_PLACES=199, PETRI_TRANSITIONS=203} [2022-11-18 18:24:46,855 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 53 predicate places. [2022-11-18 18:24:46,856 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 203 transitions, 1453 flow [2022-11-18 18:24:46,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:46,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:24:46,857 INFO L209 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] [2022-11-18 18:24:46,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:24:46,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:24:46,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:24:46,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2024612031, now seen corresponding path program 1 times [2022-11-18 18:24:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:24:46,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256194507] [2022-11-18 18:24:46,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:24:46,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:24:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:24:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:24:47,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:24:47,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256194507] [2022-11-18 18:24:47,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256194507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:24:47,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:24:47,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 18:24:47,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823323892] [2022-11-18 18:24:47,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:24:47,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 18:24:47,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:24:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 18:24:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:24:47,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-18 18:24:47,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 203 transitions, 1453 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:47,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:24:47,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-18 18:24:47,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:24:57,544 INFO L130 PetriNetUnfolder]: 26455/47601 cut-off events. [2022-11-18 18:24:57,544 INFO L131 PetriNetUnfolder]: For 204630/219220 co-relation queries the response was YES. [2022-11-18 18:24:58,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184744 conditions, 47601 events. 26455/47601 cut-off events. For 204630/219220 co-relation queries the response was YES. Maximal size of possible extension queue 3158. Compared 479812 event pairs, 1471 based on Foata normal form. 787/46596 useless extension candidates. Maximal degree in co-relation 184641. Up to 9928 conditions per place. [2022-11-18 18:24:58,486 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 131 selfloop transitions, 58 changer transitions 46/355 dead transitions. [2022-11-18 18:24:58,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 355 transitions, 3035 flow [2022-11-18 18:24:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 18:24:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 18:24:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1972 transitions. [2022-11-18 18:24:58,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8866906474820144 [2022-11-18 18:24:58,498 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1972 transitions. [2022-11-18 18:24:58,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1972 transitions. [2022-11-18 18:24:58,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:24:58,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1972 transitions. [2022-11-18 18:24:58,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.25) internal successors, (1972), 16 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:58,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:58,516 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 139.0) internal successors, (2363), 17 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:24:58,516 INFO L175 Difference]: Start difference. First operand has 199 places, 203 transitions, 1453 flow. Second operand 16 states and 1972 transitions. [2022-11-18 18:24:58,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 355 transitions, 3035 flow [2022-11-18 18:25:18,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 355 transitions, 2911 flow, removed 49 selfloop flow, removed 5 redundant places. [2022-11-18 18:25:18,610 INFO L231 Difference]: Finished difference. Result has 210 places, 210 transitions, 1570 flow [2022-11-18 18:25:18,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1199, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1570, PETRI_PLACES=210, PETRI_TRANSITIONS=210} [2022-11-18 18:25:18,611 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 64 predicate places. [2022-11-18 18:25:18,611 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 210 transitions, 1570 flow [2022-11-18 18:25:18,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:25:18,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:25:18,612 INFO L209 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] [2022-11-18 18:25:18,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:25:18,613 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 18:25:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:25:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1680490826, now seen corresponding path program 1 times [2022-11-18 18:25:18,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:25:18,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762408047] [2022-11-18 18:25:18,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:25:18,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:25:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:25:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:25:19,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:25:19,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762408047] [2022-11-18 18:25:19,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762408047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:25:19,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:25:19,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:25:19,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530104085] [2022-11-18 18:25:19,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:25:19,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:25:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:25:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:25:19,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:25:19,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 139 [2022-11-18 18:25:19,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 210 transitions, 1570 flow. Second operand has 11 states, 11 states have (on average 101.0909090909091) internal successors, (1112), 11 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:25:19,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:25:19,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 139 [2022-11-18 18:25:19,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:25:24,183 INFO L130 PetriNetUnfolder]: 8634/26703 cut-off events. [2022-11-18 18:25:24,183 INFO L131 PetriNetUnfolder]: For 142548/152526 co-relation queries the response was YES. [2022-11-18 18:25:24,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103751 conditions, 26703 events. 8634/26703 cut-off events. For 142548/152526 co-relation queries the response was YES. Maximal size of possible extension queue 3244. Compared 381575 event pairs, 211 based on Foata normal form. 50/25130 useless extension candidates. Maximal degree in co-relation 103632. Up to 5917 conditions per place. [2022-11-18 18:25:24,664 INFO L137 encePairwiseOnDemand]: 121/139 looper letters, 94 selfloop transitions, 85 changer transitions 29/353 dead transitions. [2022-11-18 18:25:24,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 353 transitions, 3253 flow [2022-11-18 18:25:24,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:25:24,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:25:24,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1619 transitions. [2022-11-18 18:25:24,669 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7764988009592326 [2022-11-18 18:25:24,669 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1619 transitions. [2022-11-18 18:25:24,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1619 transitions. [2022-11-18 18:25:24,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:25:24,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1619 transitions. [2022-11-18 18:25:24,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 107.93333333333334) internal successors, (1619), 15 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:25:24,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:25:24,681 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:25:24,682 INFO L175 Difference]: Start difference. First operand has 210 places, 210 transitions, 1570 flow. Second operand 15 states and 1619 transitions. [2022-11-18 18:25:24,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 353 transitions, 3253 flow