./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN --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 649d1c1aa65cb6010503451d39379fb2c9cafcc7e0f5f23661f58b5d14c46288 --- 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-6b4ec56 [2022-11-20 10:36:16,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:36:16,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:36:16,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:36:16,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:36:16,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:36:16,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:36:16,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:36:16,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:36:16,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:36:16,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:36:16,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:36:16,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:36:16,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:36:16,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:36:16,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:36:16,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:36:16,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:36:16,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:36:16,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:36:16,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:36:16,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:36:16,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:36:16,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:36:16,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:36:16,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:36:16,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:36:16,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:36:16,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:36:16,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:36:16,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:36:16,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:36:16,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:36:16,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:36:16,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:36:16,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:36:16,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:36:16,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:36:16,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:36:16,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:36:16,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:36:16,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:36:16,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:36:16,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:36:16,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:36:16,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:36:16,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:36:16,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:36:16,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:36:16,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:36:16,256 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:36:16,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:36:16,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:36:16,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:36:16,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:36:16,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:36:16,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:36:16,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:36:16,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:36:16,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:36:16,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:36:16,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:36:16,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:36:16,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:36:16,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:36:16,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:36:16,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:36:16,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:36:16,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:36:16,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:36:16,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:36:16,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:36:16,265 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:36:16,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:36:16,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:36:16,266 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_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 649d1c1aa65cb6010503451d39379fb2c9cafcc7e0f5f23661f58b5d14c46288 [2022-11-20 10:36:16,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:36:16,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:36:16,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:36:16,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:36:16,590 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:36:16,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 10:36:19,673 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:36:19,948 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:36:19,949 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/sv-benchmarks/c/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 10:36:19,974 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/data/f14575337/13287dd516444327b9682a5ab574cbb8/FLAG082aebfd1 [2022-11-20 10:36:19,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/data/f14575337/13287dd516444327b9682a5ab574cbb8 [2022-11-20 10:36:19,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:36:19,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:36:19,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:36:19,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:36:19,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:36:19,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:36:19" (1/1) ... [2022-11-20 10:36:20,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ca142d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20, skipping insertion in model container [2022-11-20 10:36:20,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:36:19" (1/1) ... [2022-11-20 10:36:20,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:36:20,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:36:20,249 WARN L237 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_34f0fbbe-da24-4846-874c-fe7b15e30e05/sv-benchmarks/c/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-20 10:36:20,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:36:20,601 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:36:20,616 WARN L237 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_34f0fbbe-da24-4846-874c-fe7b15e30e05/sv-benchmarks/c/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-20 10:36:20,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:36:20,767 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:36:20,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20 WrapperNode [2022-11-20 10:36:20,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:36:20,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:36:20,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:36:20,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:36:20,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,857 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-11-20 10:36:20,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:36:20,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:36:20,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:36:20,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:36:20,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,927 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:36:20,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:36:20,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:36:20,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:36:20,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (1/1) ... [2022-11-20 10:36:20,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:36:20,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:36:20,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:36:21,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34f0fbbe-da24-4846-874c-fe7b15e30e05/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:36:21,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:36:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:36:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:36:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:36:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:36:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 10:36:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 10:36:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 10:36:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 10:36:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 10:36:21,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 10:36:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 10:36:21,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 10:36:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:36:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:36:21,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:36:21,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:36:21,053 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:36:21,223 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:36:21,225 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:36:21,723 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:36:21,945 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:36:21,945 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:36:21,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:36:21 BoogieIcfgContainer [2022-11-20 10:36:21,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:36:21,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:36:21,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:36:21,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:36:21,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:36:19" (1/3) ... [2022-11-20 10:36:21,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fdf81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:36:21, skipping insertion in model container [2022-11-20 10:36:21,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:36:20" (2/3) ... [2022-11-20 10:36:21,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fdf81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:36:21, skipping insertion in model container [2022-11-20 10:36:21,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:36:21" (3/3) ... [2022-11-20 10:36:21,974 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 10:36:21,987 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:36:21,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:36:21,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:36:21,997 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:36:22,067 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:36:22,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2022-11-20 10:36:22,216 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-11-20 10:36:22,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:36:22,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-11-20 10:36:22,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2022-11-20 10:36:22,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2022-11-20 10:36:22,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:36:22,246 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;@17b0d838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:36:22,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 10:36:22,261 INFO L130 PetriNetUnfolder]: 0/47 cut-off events. [2022-11-20 10:36:22,261 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:36:22,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:22,262 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] [2022-11-20 10:36:22,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 10:36:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:22,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1769661331, now seen corresponding path program 1 times [2022-11-20 10:36:22,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:22,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13047182] [2022-11-20 10:36:22,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:22,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:22,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:22,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13047182] [2022-11-20 10:36:22,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13047182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:22,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:22,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:36:22,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322415780] [2022-11-20 10:36:22,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:22,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:36:22,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:22,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:36:22,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:36:22,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 134 [2022-11-20 10:36:22,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:22,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:22,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 134 [2022-11-20 10:36:22,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:23,252 INFO L130 PetriNetUnfolder]: 162/616 cut-off events. [2022-11-20 10:36:23,253 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-20 10:36:23,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 616 events. 162/616 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3383 event pairs, 132 based on Foata normal form. 36/608 useless extension candidates. Maximal degree in co-relation 867. Up to 191 conditions per place. [2022-11-20 10:36:23,268 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 18 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2022-11-20 10:36:23,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 134 transitions, 329 flow [2022-11-20 10:36:23,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:36:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:36:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2022-11-20 10:36:23,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9427860696517413 [2022-11-20 10:36:23,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 379 transitions. [2022-11-20 10:36:23,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions. [2022-11-20 10:36:23,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:23,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions. [2022-11-20 10:36:23,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:23,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:23,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:23,317 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 272 flow. Second operand 3 states and 379 transitions. [2022-11-20 10:36:23,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 134 transitions, 329 flow [2022-11-20 10:36:23,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 134 transitions, 322 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:36:23,329 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 264 flow [2022-11-20 10:36:23,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=137, PETRI_TRANSITIONS=126} [2022-11-20 10:36:23,339 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, -4 predicate places. [2022-11-20 10:36:23,339 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 264 flow [2022-11-20 10:36:23,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:23,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:23,341 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] [2022-11-20 10:36:23,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:36:23,341 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)] === [2022-11-20 10:36:23,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:23,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2125680031, now seen corresponding path program 1 times [2022-11-20 10:36:23,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:23,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498141163] [2022-11-20 10:36:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:23,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:23,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:23,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498141163] [2022-11-20 10:36:23,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498141163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:23,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:23,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:36:23,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614025126] [2022-11-20 10:36:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:36:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:23,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:36:23,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:36:23,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-11-20 10:36:23,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 104.14285714285714) internal successors, (729), 7 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:23,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:23,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-11-20 10:36:23,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:30,644 INFO L130 PetriNetUnfolder]: 14997/32234 cut-off events. [2022-11-20 10:36:30,645 INFO L131 PetriNetUnfolder]: For 1203/1203 co-relation queries the response was YES. [2022-11-20 10:36:30,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54123 conditions, 32234 events. 14997/32234 cut-off events. For 1203/1203 co-relation queries the response was YES. Maximal size of possible extension queue 1303. Compared 335655 event pairs, 1161 based on Foata normal form. 0/31566 useless extension candidates. Maximal degree in co-relation 54066. Up to 6036 conditions per place. [2022-11-20 10:36:30,896 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 49 selfloop transitions, 10 changer transitions 128/272 dead transitions. [2022-11-20 10:36:30,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 272 transitions, 936 flow [2022-11-20 10:36:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:36:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:36:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1503 transitions. [2022-11-20 10:36:30,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8628013777267508 [2022-11-20 10:36:30,905 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1503 transitions. [2022-11-20 10:36:30,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1503 transitions. [2022-11-20 10:36:30,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:30,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1503 transitions. [2022-11-20 10:36:30,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.61538461538461) internal successors, (1503), 13 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,924 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,924 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 264 flow. Second operand 13 states and 1503 transitions. [2022-11-20 10:36:30,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 272 transitions, 936 flow [2022-11-20 10:36:30,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 272 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:36:30,934 INFO L231 Difference]: Finished difference. Result has 159 places, 121 transitions, 356 flow [2022-11-20 10:36:30,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=356, PETRI_PLACES=159, PETRI_TRANSITIONS=121} [2022-11-20 10:36:30,936 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 18 predicate places. [2022-11-20 10:36:30,937 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 121 transitions, 356 flow [2022-11-20 10:36:30,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.14285714285714) internal successors, (729), 7 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:30,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:30,939 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] [2022-11-20 10:36:30,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:36:30,939 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)] === [2022-11-20 10:36:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:30,944 INFO L85 PathProgramCache]: Analyzing trace with hash -22888288, now seen corresponding path program 1 times [2022-11-20 10:36:30,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:30,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195259553] [2022-11-20 10:36:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:31,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:31,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195259553] [2022-11-20 10:36:31,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195259553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:31,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:31,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:36:31,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114752638] [2022-11-20 10:36:31,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:31,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:36:31,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:36:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:36:31,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-11-20 10:36:31,415 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 121 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 104.28571428571429) internal successors, (730), 7 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:31,415 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:31,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-11-20 10:36:31,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:35,220 INFO L130 PetriNetUnfolder]: 10976/18232 cut-off events. [2022-11-20 10:36:35,220 INFO L131 PetriNetUnfolder]: For 32175/32175 co-relation queries the response was YES. [2022-11-20 10:36:35,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55761 conditions, 18232 events. 10976/18232 cut-off events. For 32175/32175 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 139786 event pairs, 1132 based on Foata normal form. 376/18317 useless extension candidates. Maximal degree in co-relation 55692. Up to 4789 conditions per place. [2022-11-20 10:36:35,378 INFO L137 encePairwiseOnDemand]: 121/134 looper letters, 53 selfloop transitions, 18 changer transitions 124/280 dead transitions. [2022-11-20 10:36:35,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 280 transitions, 1610 flow [2022-11-20 10:36:35,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:36:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:36:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1494 transitions. [2022-11-20 10:36:35,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8576349024110218 [2022-11-20 10:36:35,384 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1494 transitions. [2022-11-20 10:36:35,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1494 transitions. [2022-11-20 10:36:35,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:35,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1494 transitions. [2022-11-20 10:36:35,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.92307692307692) internal successors, (1494), 13 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:35,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:35,397 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:35,397 INFO L175 Difference]: Start difference. First operand has 159 places, 121 transitions, 356 flow. Second operand 13 states and 1494 transitions. [2022-11-20 10:36:35,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 280 transitions, 1610 flow [2022-11-20 10:36:35,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 280 transitions, 1586 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-11-20 10:36:35,541 INFO L231 Difference]: Finished difference. Result has 157 places, 134 transitions, 582 flow [2022-11-20 10:36:35,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=582, PETRI_PLACES=157, PETRI_TRANSITIONS=134} [2022-11-20 10:36:35,545 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 16 predicate places. [2022-11-20 10:36:35,545 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 134 transitions, 582 flow [2022-11-20 10:36:35,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.28571428571429) internal successors, (730), 7 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:35,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:35,547 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] [2022-11-20 10:36:35,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:36:35,547 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)] === [2022-11-20 10:36:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1663726767, now seen corresponding path program 1 times [2022-11-20 10:36:35,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:35,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037552634] [2022-11-20 10:36:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:35,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:35,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:35,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:35,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037552634] [2022-11-20 10:36:35,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037552634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:35,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:35,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:36:35,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290304632] [2022-11-20 10:36:35,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:35,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:36:35,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:35,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:36:35,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:36:35,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-11-20 10:36:35,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 134 transitions, 582 flow. Second operand has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:35,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:35,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-11-20 10:36:35,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:39,096 INFO L130 PetriNetUnfolder]: 9305/16520 cut-off events. [2022-11-20 10:36:39,096 INFO L131 PetriNetUnfolder]: For 59806/59806 co-relation queries the response was YES. [2022-11-20 10:36:39,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57511 conditions, 16520 events. 9305/16520 cut-off events. For 59806/59806 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 133203 event pairs, 1066 based on Foata normal form. 280/16300 useless extension candidates. Maximal degree in co-relation 57429. Up to 4359 conditions per place. [2022-11-20 10:36:39,278 INFO L137 encePairwiseOnDemand]: 121/134 looper letters, 58 selfloop transitions, 28 changer transitions 109/280 dead transitions. [2022-11-20 10:36:39,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 280 transitions, 1984 flow [2022-11-20 10:36:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:36:39,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:36:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1486 transitions. [2022-11-20 10:36:39,283 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8530424799081515 [2022-11-20 10:36:39,284 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1486 transitions. [2022-11-20 10:36:39,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1486 transitions. [2022-11-20 10:36:39,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:39,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1486 transitions. [2022-11-20 10:36:39,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.3076923076923) internal successors, (1486), 13 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:39,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:39,299 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:39,299 INFO L175 Difference]: Start difference. First operand has 157 places, 134 transitions, 582 flow. Second operand 13 states and 1486 transitions. [2022-11-20 10:36:39,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 280 transitions, 1984 flow [2022-11-20 10:36:39,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 280 transitions, 1912 flow, removed 36 selfloop flow, removed 3 redundant places. [2022-11-20 10:36:39,496 INFO L231 Difference]: Finished difference. Result has 169 places, 149 transitions, 916 flow [2022-11-20 10:36:39,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=916, PETRI_PLACES=169, PETRI_TRANSITIONS=149} [2022-11-20 10:36:39,503 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 28 predicate places. [2022-11-20 10:36:39,504 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 149 transitions, 916 flow [2022-11-20 10:36:39,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:39,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:39,505 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] [2022-11-20 10:36:39,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:36:39,505 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)] === [2022-11-20 10:36:39,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash -213045288, now seen corresponding path program 1 times [2022-11-20 10:36:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:39,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331748569] [2022-11-20 10:36:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:39,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:40,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:40,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331748569] [2022-11-20 10:36:40,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331748569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:40,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:40,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:36:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300262252] [2022-11-20 10:36:40,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:40,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:36:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:40,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:36:40,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:36:40,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 134 [2022-11-20 10:36:40,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 149 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:40,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:40,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 134 [2022-11-20 10:36:40,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:43,783 INFO L130 PetriNetUnfolder]: 7978/15769 cut-off events. [2022-11-20 10:36:43,783 INFO L131 PetriNetUnfolder]: For 73819/75469 co-relation queries the response was YES. [2022-11-20 10:36:43,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54728 conditions, 15769 events. 7978/15769 cut-off events. For 73819/75469 co-relation queries the response was YES. Maximal size of possible extension queue 1002. Compared 146458 event pairs, 2342 based on Foata normal form. 1050/16161 useless extension candidates. Maximal degree in co-relation 54636. Up to 4338 conditions per place. [2022-11-20 10:36:43,953 INFO L137 encePairwiseOnDemand]: 128/134 looper letters, 38 selfloop transitions, 9 changer transitions 55/218 dead transitions. [2022-11-20 10:36:43,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 218 transitions, 1578 flow [2022-11-20 10:36:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:36:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 10:36:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1063 transitions. [2022-11-20 10:36:43,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8814262023217247 [2022-11-20 10:36:43,957 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1063 transitions. [2022-11-20 10:36:43,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1063 transitions. [2022-11-20 10:36:43,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:43,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1063 transitions. [2022-11-20 10:36:43,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 118.11111111111111) internal successors, (1063), 9 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:43,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:43,965 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 134.0) internal successors, (1340), 10 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:43,965 INFO L175 Difference]: Start difference. First operand has 169 places, 149 transitions, 916 flow. Second operand 9 states and 1063 transitions. [2022-11-20 10:36:43,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 218 transitions, 1578 flow [2022-11-20 10:36:44,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 218 transitions, 1476 flow, removed 51 selfloop flow, removed 6 redundant places. [2022-11-20 10:36:44,504 INFO L231 Difference]: Finished difference. Result has 169 places, 149 transitions, 889 flow [2022-11-20 10:36:44,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=889, PETRI_PLACES=169, PETRI_TRANSITIONS=149} [2022-11-20 10:36:44,506 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 28 predicate places. [2022-11-20 10:36:44,506 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 149 transitions, 889 flow [2022-11-20 10:36:44,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.16666666666667) internal successors, (667), 6 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:44,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:44,507 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] [2022-11-20 10:36:44,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:36:44,507 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)] === [2022-11-20 10:36:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1168886771, now seen corresponding path program 1 times [2022-11-20 10:36:44,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:44,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867147348] [2022-11-20 10:36:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:44,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:44,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:44,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867147348] [2022-11-20 10:36:44,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867147348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:44,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:44,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:36:44,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165533879] [2022-11-20 10:36:44,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:44,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:36:44,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:44,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:36:44,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:36:44,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-11-20 10:36:44,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 149 transitions, 889 flow. Second operand has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:44,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:44,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-11-20 10:36:44,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:36:50,923 INFO L130 PetriNetUnfolder]: 13207/24148 cut-off events. [2022-11-20 10:36:50,923 INFO L131 PetriNetUnfolder]: For 128450/128509 co-relation queries the response was YES. [2022-11-20 10:36:51,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86508 conditions, 24148 events. 13207/24148 cut-off events. For 128450/128509 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 213538 event pairs, 2486 based on Foata normal form. 370/23707 useless extension candidates. Maximal degree in co-relation 86411. Up to 6452 conditions per place. [2022-11-20 10:36:51,201 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 62 selfloop transitions, 34 changer transitions 105/286 dead transitions. [2022-11-20 10:36:51,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 286 transitions, 2333 flow [2022-11-20 10:36:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:36:51,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:36:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1479 transitions. [2022-11-20 10:36:51,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8490241102181401 [2022-11-20 10:36:51,207 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1479 transitions. [2022-11-20 10:36:51,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1479 transitions. [2022-11-20 10:36:51,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:36:51,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1479 transitions. [2022-11-20 10:36:51,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.76923076923077) internal successors, (1479), 13 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:51,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:51,219 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:51,219 INFO L175 Difference]: Start difference. First operand has 169 places, 149 transitions, 889 flow. Second operand 13 states and 1479 transitions. [2022-11-20 10:36:51,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 286 transitions, 2333 flow [2022-11-20 10:36:51,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 286 transitions, 2204 flow, removed 53 selfloop flow, removed 14 redundant places. [2022-11-20 10:36:51,538 INFO L231 Difference]: Finished difference. Result has 173 places, 153 transitions, 1072 flow [2022-11-20 10:36:51,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1072, PETRI_PLACES=173, PETRI_TRANSITIONS=153} [2022-11-20 10:36:51,539 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 32 predicate places. [2022-11-20 10:36:51,539 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 153 transitions, 1072 flow [2022-11-20 10:36:51,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:51,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:36:51,540 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] [2022-11-20 10:36:51,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:36:51,541 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)] === [2022-11-20 10:36:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:36:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash -806150156, now seen corresponding path program 1 times [2022-11-20 10:36:51,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:36:51,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186988115] [2022-11-20 10:36:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:36:51,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:36:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:36:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:36:51,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:36:51,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186988115] [2022-11-20 10:36:51,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186988115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:36:51,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:36:51,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:36:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445284736] [2022-11-20 10:36:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:36:51,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:36:51,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:36:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:36:51,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:36:51,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 134 [2022-11-20 10:36:51,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 153 transitions, 1072 flow. Second operand has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:36:51,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:36:51,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 134 [2022-11-20 10:36:51,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:08,095 INFO L130 PetriNetUnfolder]: 45147/75680 cut-off events. [2022-11-20 10:37:08,096 INFO L131 PetriNetUnfolder]: For 230174/266788 co-relation queries the response was YES. [2022-11-20 10:37:08,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189599 conditions, 75680 events. 45147/75680 cut-off events. For 230174/266788 co-relation queries the response was YES. Maximal size of possible extension queue 4251. Compared 716637 event pairs, 2724 based on Foata normal form. 1600/73930 useless extension candidates. Maximal degree in co-relation 189505. Up to 25721 conditions per place. [2022-11-20 10:37:08,896 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 109 selfloop transitions, 20 changer transitions 0/256 dead transitions. [2022-11-20 10:37:08,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 256 transitions, 1962 flow [2022-11-20 10:37:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:37:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 10:37:08,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1177 transitions. [2022-11-20 10:37:08,901 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8783582089552239 [2022-11-20 10:37:08,901 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1177 transitions. [2022-11-20 10:37:08,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1177 transitions. [2022-11-20 10:37:08,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:08,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1177 transitions. [2022-11-20 10:37:08,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.7) internal successors, (1177), 10 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:08,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:08,910 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:08,910 INFO L175 Difference]: Start difference. First operand has 173 places, 153 transitions, 1072 flow. Second operand 10 states and 1177 transitions. [2022-11-20 10:37:08,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 256 transitions, 1962 flow [2022-11-20 10:37:09,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 256 transitions, 1948 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-11-20 10:37:09,076 INFO L231 Difference]: Finished difference. Result has 174 places, 171 transitions, 1201 flow [2022-11-20 10:37:09,076 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1201, PETRI_PLACES=174, PETRI_TRANSITIONS=171} [2022-11-20 10:37:09,077 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 33 predicate places. [2022-11-20 10:37:09,078 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 171 transitions, 1201 flow [2022-11-20 10:37:09,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,078 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:37:09,079 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] [2022-11-20 10:37:09,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:37:09,079 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)] === [2022-11-20 10:37:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:09,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1672134892, now seen corresponding path program 1 times [2022-11-20 10:37:09,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:37:09,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378299365] [2022-11-20 10:37:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:09,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:37:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:37:09,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:37:09,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378299365] [2022-11-20 10:37:09,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378299365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:09,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:09,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:37:09,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941431592] [2022-11-20 10:37:09,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:09,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:37:09,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:37:09,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:37:09,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:37:09,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 134 [2022-11-20 10:37:09,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 171 transitions, 1201 flow. Second operand has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:09,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:37:09,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 134 [2022-11-20 10:37:09,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:37:18,420 INFO L130 PetriNetUnfolder]: 16665/42178 cut-off events. [2022-11-20 10:37:18,420 INFO L131 PetriNetUnfolder]: For 156763/164798 co-relation queries the response was YES. [2022-11-20 10:37:18,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136575 conditions, 42178 events. 16665/42178 cut-off events. For 156763/164798 co-relation queries the response was YES. Maximal size of possible extension queue 3083. Compared 550247 event pairs, 4334 based on Foata normal form. 832/39813 useless extension candidates. Maximal degree in co-relation 136474. Up to 8134 conditions per place. [2022-11-20 10:37:18,959 INFO L137 encePairwiseOnDemand]: 122/134 looper letters, 137 selfloop transitions, 57 changer transitions 15/312 dead transitions. [2022-11-20 10:37:18,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 312 transitions, 3101 flow [2022-11-20 10:37:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:37:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:37:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1469 transitions. [2022-11-20 10:37:18,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8432835820895522 [2022-11-20 10:37:18,966 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1469 transitions. [2022-11-20 10:37:18,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1469 transitions. [2022-11-20 10:37:18,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:37:18,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1469 transitions. [2022-11-20 10:37:18,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:18,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:18,977 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:37:18,978 INFO L175 Difference]: Start difference. First operand has 174 places, 171 transitions, 1201 flow. Second operand 13 states and 1469 transitions. [2022-11-20 10:37:18,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 312 transitions, 3101 flow