./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/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_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix030_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/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_589d6556-6bec-4dfa-8ac1-e1794ac8a218/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 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa --- 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 11:30:34,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:30:34,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:30:34,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:30:34,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:30:34,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:30:34,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:30:34,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:30:34,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:30:34,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:30:34,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:30:34,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:30:34,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:30:34,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:30:34,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:30:34,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:30:34,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:30:34,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:30:34,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:30:34,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:30:34,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:30:34,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:30:34,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:30:34,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:30:34,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:30:34,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:30:34,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:30:34,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:30:34,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:30:34,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:30:34,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:30:34,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:30:34,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:30:34,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:30:34,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:30:34,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:30:34,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:30:34,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:30:34,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:30:34,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:30:34,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:30:34,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:30:34,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:30:34,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:30:34,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:30:34,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:30:34,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:30:34,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:30:34,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:30:34,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:30:34,823 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:30:34,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:30:34,823 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:30:34,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:30:34,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:30:34,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:30:34,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:30:34,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:30:34,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:30:34,825 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:30:34,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:30:34,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:30:34,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:30:34,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:30:34,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:30:34,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:30:34,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:34,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:30:34,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:30:34,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:30:34,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:30:34,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:30:34,829 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:30:34,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:30:34,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:30:34,830 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_589d6556-6bec-4dfa-8ac1-e1794ac8a218/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa [2022-11-20 11:30:35,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:30:35,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:30:35,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:30:35,192 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:30:35,192 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:30:35,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix030_tso.i [2022-11-20 11:30:38,188 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:38,539 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:38,540 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2022-11-20 11:30:38,559 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/data/10126fdaa/5b66623b1d204941a7a3d635e18f14c3/FLAG4a6146d2d [2022-11-20 11:30:38,583 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/data/10126fdaa/5b66623b1d204941a7a3d635e18f14c3 [2022-11-20 11:30:38,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:38,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:38,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:38,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:38,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:38,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:38" (1/1) ... [2022-11-20 11:30:38,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30380217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:38, skipping insertion in model container [2022-11-20 11:30:38,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:38" (1/1) ... [2022-11-20 11:30:38,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:38,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:38,840 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_589d6556-6bec-4dfa-8ac1-e1794ac8a218/sv-benchmarks/c/pthread-wmm/mix030_tso.i[944,957] [2022-11-20 11:30:39,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:39,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:30:39,185 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_589d6556-6bec-4dfa-8ac1-e1794ac8a218/sv-benchmarks/c/pthread-wmm/mix030_tso.i[944,957] [2022-11-20 11:30:39,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:39,286 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:30:39,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39 WrapperNode [2022-11-20 11:30:39,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:39,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:39,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:30:39,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:30:39,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,380 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 176 [2022-11-20 11:30:39,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:39,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:30:39,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:30:39,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:30:39,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,416 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:30:39,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:30:39,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:30:39,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:30:39,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (1/1) ... [2022-11-20 11:30:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:39,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:39,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:30:39,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_589d6556-6bec-4dfa-8ac1-e1794ac8a218/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:30:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:30:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:30:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:30:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:30:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:30:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 11:30:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 11:30:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 11:30:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 11:30:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 11:30:39,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 11:30:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 11:30:39,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 11:30:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:30:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:30:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:30:39,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:30:39,576 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 11:30:39,773 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:30:39,775 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:30:40,313 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:30:40,538 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:30:40,538 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:30:40,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:40 BoogieIcfgContainer [2022-11-20 11:30:40,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:30:40,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:30:40,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:30:40,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:30:40,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:38" (1/3) ... [2022-11-20 11:30:40,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab8b01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:40, skipping insertion in model container [2022-11-20 11:30:40,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:39" (2/3) ... [2022-11-20 11:30:40,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab8b01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:40, skipping insertion in model container [2022-11-20 11:30:40,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:40" (3/3) ... [2022-11-20 11:30:40,556 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_tso.i [2022-11-20 11:30:40,567 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:30:40,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:30:40,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:30:40,580 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:30:40,650 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:30:40,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2022-11-20 11:30:40,752 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-11-20 11:30:40,753 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:30:40,759 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 66 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-20 11:30:40,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2022-11-20 11:30:40,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2022-11-20 11:30:40,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:30:40,782 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;@70341d46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:30:40,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:30:40,808 INFO L130 PetriNetUnfolder]: 0/88 cut-off events. [2022-11-20 11:30:40,809 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:30:40,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:40,810 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] [2022-11-20 11:30:40,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:40,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1264589176, now seen corresponding path program 1 times [2022-11-20 11:30:40,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:40,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559668628] [2022-11-20 11:30:40,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:41,690 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 11:30:41,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:41,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559668628] [2022-11-20 11:30:41,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559668628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:41,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:41,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:30:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168880374] [2022-11-20 11:30:41,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:41,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:30:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:41,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:30:41,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:30:41,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 134 [2022-11-20 11:30:41,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 11:30:41,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:41,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 134 [2022-11-20 11:30:41,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:42,013 INFO L130 PetriNetUnfolder]: 24/326 cut-off events. [2022-11-20 11:30:42,013 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 11:30:42,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 326 events. 24/326 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1229 event pairs, 11 based on Foata normal form. 11/321 useless extension candidates. Maximal degree in co-relation 339. Up to 40 conditions per place. [2022-11-20 11:30:42,021 INFO L137 encePairwiseOnDemand]: 129/134 looper letters, 12 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2022-11-20 11:30:42,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 129 transitions, 298 flow [2022-11-20 11:30:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:30:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:30:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2022-11-20 11:30:42,049 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353233830845771 [2022-11-20 11:30:42,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2022-11-20 11:30:42,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2022-11-20 11:30:42,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:42,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2022-11-20 11:30:42,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 11:30:42,073 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 11:30:42,074 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 11:30:42,076 INFO L175 Difference]: Start difference. First operand has 141 places, 130 transitions, 272 flow. Second operand 3 states and 376 transitions. [2022-11-20 11:30:42,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 129 transitions, 298 flow [2022-11-20 11:30:42,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 129 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:30:42,118 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 264 flow [2022-11-20 11:30:42,121 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 11:30:42,128 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, -4 predicate places. [2022-11-20 11:30:42,128 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 264 flow [2022-11-20 11:30:42,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 11:30:42,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:42,129 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] [2022-11-20 11:30:42,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:30:42,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:42,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:42,132 INFO L85 PathProgramCache]: Analyzing trace with hash 839304211, now seen corresponding path program 1 times [2022-11-20 11:30:42,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:42,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493613809] [2022-11-20 11:30:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:42,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:42,646 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 11:30:42,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:42,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493613809] [2022-11-20 11:30:42,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493613809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:42,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:42,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:30:42,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060672521] [2022-11-20 11:30:42,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:42,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:30:42,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:42,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:30:42,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:30:42,652 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 134 [2022-11-20 11:30:42,653 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 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 11:30:42,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:42,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 134 [2022-11-20 11:30:42,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:43,516 INFO L130 PetriNetUnfolder]: 742/2316 cut-off events. [2022-11-20 11:30:43,516 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2022-11-20 11:30:43,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3568 conditions, 2316 events. 742/2316 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 18780 event pairs, 62 based on Foata normal form. 0/2261 useless extension candidates. Maximal degree in co-relation 3513. Up to 596 conditions per place. [2022-11-20 11:30:43,539 INFO L137 encePairwiseOnDemand]: 127/134 looper letters, 25 selfloop transitions, 3 changer transitions 59/181 dead transitions. [2022-11-20 11:30:43,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 181 transitions, 542 flow [2022-11-20 11:30:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:30:43,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:30:43,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1075 transitions. [2022-11-20 11:30:43,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8913764510779436 [2022-11-20 11:30:43,546 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1075 transitions. [2022-11-20 11:30:43,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1075 transitions. [2022-11-20 11:30:43,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:43,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1075 transitions. [2022-11-20 11:30:43,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.44444444444444) internal successors, (1075), 9 states have internal predecessors, (1075), 0 states have call successors, (0), 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 11:30:43,555 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 11:30:43,556 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 11:30:43,556 INFO L175 Difference]: Start difference. First operand has 137 places, 126 transitions, 264 flow. Second operand 9 states and 1075 transitions. [2022-11-20 11:30:43,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 181 transitions, 542 flow [2022-11-20 11:30:43,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 181 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:30:43,564 INFO L231 Difference]: Finished difference. Result has 150 places, 114 transitions, 275 flow [2022-11-20 11:30:43,565 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=275, PETRI_PLACES=150, PETRI_TRANSITIONS=114} [2022-11-20 11:30:43,565 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2022-11-20 11:30:43,566 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 114 transitions, 275 flow [2022-11-20 11:30:43,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 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 11:30:43,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:43,568 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:43,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:30:43,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:43,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1302530318, now seen corresponding path program 1 times [2022-11-20 11:30:43,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:43,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133861011] [2022-11-20 11:30:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:43,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:44,852 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 11:30:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:44,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133861011] [2022-11-20 11:30:44,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133861011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:44,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:44,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:30:44,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621542815] [2022-11-20 11:30:44,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:44,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:30:44,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:44,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:30:44,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:30:44,856 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 134 [2022-11-20 11:30:44,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 114 transitions, 275 flow. Second operand has 7 states, 7 states have (on average 100.28571428571429) internal successors, (702), 7 states have internal predecessors, (702), 0 states have call successors, (0), 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 11:30:44,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:44,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 134 [2022-11-20 11:30:44,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:47,240 INFO L130 PetriNetUnfolder]: 3897/7708 cut-off events. [2022-11-20 11:30:47,241 INFO L131 PetriNetUnfolder]: For 9083/9083 co-relation queries the response was YES. [2022-11-20 11:30:47,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18965 conditions, 7708 events. 3897/7708 cut-off events. For 9083/9083 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 61378 event pairs, 828 based on Foata normal form. 168/7673 useless extension candidates. Maximal degree in co-relation 18893. Up to 2258 conditions per place. [2022-11-20 11:30:47,323 INFO L137 encePairwiseOnDemand]: 116/134 looper letters, 46 selfloop transitions, 17 changer transitions 95/238 dead transitions. [2022-11-20 11:30:47,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 238 transitions, 1067 flow [2022-11-20 11:30:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:30:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:30:47,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1418 transitions. [2022-11-20 11:30:47,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8140068886337543 [2022-11-20 11:30:47,329 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1418 transitions. [2022-11-20 11:30:47,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1418 transitions. [2022-11-20 11:30:47,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:47,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1418 transitions. [2022-11-20 11:30:47,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.07692307692308) internal successors, (1418), 13 states have internal predecessors, (1418), 0 states have call successors, (0), 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 11:30:47,338 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 11:30:47,340 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 11:30:47,340 INFO L175 Difference]: Start difference. First operand has 150 places, 114 transitions, 275 flow. Second operand 13 states and 1418 transitions. [2022-11-20 11:30:47,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 238 transitions, 1067 flow [2022-11-20 11:30:47,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 238 transitions, 1038 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-11-20 11:30:47,413 INFO L231 Difference]: Finished difference. Result has 150 places, 127 transitions, 464 flow [2022-11-20 11:30:47,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=464, PETRI_PLACES=150, PETRI_TRANSITIONS=127} [2022-11-20 11:30:47,415 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2022-11-20 11:30:47,415 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 127 transitions, 464 flow [2022-11-20 11:30:47,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.28571428571429) internal successors, (702), 7 states have internal predecessors, (702), 0 states have call successors, (0), 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 11:30:47,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:47,416 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 11:30:47,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:30:47,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2090291686, now seen corresponding path program 1 times [2022-11-20 11:30:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:47,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367381488] [2022-11-20 11:30:47,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:47,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:47,797 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 11:30:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:47,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367381488] [2022-11-20 11:30:47,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367381488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:47,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:47,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:30:47,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598762680] [2022-11-20 11:30:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:47,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:30:47,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:30:47,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:30:47,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 134 [2022-11-20 11:30:47,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 127 transitions, 464 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 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 11:30:47,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:47,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 134 [2022-11-20 11:30:47,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:48,974 INFO L130 PetriNetUnfolder]: 1503/3645 cut-off events. [2022-11-20 11:30:48,975 INFO L131 PetriNetUnfolder]: For 13788/15670 co-relation queries the response was YES. [2022-11-20 11:30:48,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13441 conditions, 3645 events. 1503/3645 cut-off events. For 13788/15670 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 30505 event pairs, 293 based on Foata normal form. 90/3619 useless extension candidates. Maximal degree in co-relation 13363. Up to 1425 conditions per place. [2022-11-20 11:30:49,021 INFO L137 encePairwiseOnDemand]: 128/134 looper letters, 36 selfloop transitions, 14 changer transitions 12/168 dead transitions. [2022-11-20 11:30:49,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 168 transitions, 906 flow [2022-11-20 11:30:49,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:30:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:30:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1059 transitions. [2022-11-20 11:30:49,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8781094527363185 [2022-11-20 11:30:49,026 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1059 transitions. [2022-11-20 11:30:49,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1059 transitions. [2022-11-20 11:30:49,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:49,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1059 transitions. [2022-11-20 11:30:49,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.66666666666667) internal successors, (1059), 9 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:30:49,035 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 11:30:49,036 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 11:30:49,036 INFO L175 Difference]: Start difference. First operand has 150 places, 127 transitions, 464 flow. Second operand 9 states and 1059 transitions. [2022-11-20 11:30:49,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 168 transitions, 906 flow [2022-11-20 11:30:49,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 168 transitions, 872 flow, removed 17 selfloop flow, removed 6 redundant places. [2022-11-20 11:30:49,094 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 574 flow [2022-11-20 11:30:49,100 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=574, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-11-20 11:30:49,101 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2022-11-20 11:30:49,102 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 574 flow [2022-11-20 11:30:49,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 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 11:30:49,103 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:49,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:49,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:30:49,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:49,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1727900806, now seen corresponding path program 1 times [2022-11-20 11:30:49,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:49,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873512283] [2022-11-20 11:30:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:49,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:50,210 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 11:30:50,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:50,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873512283] [2022-11-20 11:30:50,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873512283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:50,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:50,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:30:50,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654510900] [2022-11-20 11:30:50,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:50,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:30:50,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:50,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:30:50,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:30:50,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 134 [2022-11-20 11:30:50,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 574 flow. Second operand has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:30:50,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:50,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 134 [2022-11-20 11:30:50,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:53,071 INFO L130 PetriNetUnfolder]: 4274/9676 cut-off events. [2022-11-20 11:30:53,071 INFO L131 PetriNetUnfolder]: For 29414/38064 co-relation queries the response was YES. [2022-11-20 11:30:53,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35802 conditions, 9676 events. 4274/9676 cut-off events. For 29414/38064 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 91737 event pairs, 979 based on Foata normal form. 69/9550 useless extension candidates. Maximal degree in co-relation 35715. Up to 3011 conditions per place. [2022-11-20 11:30:53,162 INFO L137 encePairwiseOnDemand]: 116/134 looper letters, 56 selfloop transitions, 28 changer transitions 129/293 dead transitions. [2022-11-20 11:30:53,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 293 transitions, 2232 flow [2022-11-20 11:30:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:30:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:30:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1401 transitions. [2022-11-20 11:30:53,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.804247990815155 [2022-11-20 11:30:53,167 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1401 transitions. [2022-11-20 11:30:53,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1401 transitions. [2022-11-20 11:30:53,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:53,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1401 transitions. [2022-11-20 11:30:53,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.76923076923077) internal successors, (1401), 13 states have internal predecessors, (1401), 0 states have call successors, (0), 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 11:30:53,175 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 11:30:53,176 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 11:30:53,176 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 574 flow. Second operand 13 states and 1401 transitions. [2022-11-20 11:30:53,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 293 transitions, 2232 flow [2022-11-20 11:30:53,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 293 transitions, 2232 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:30:53,249 INFO L231 Difference]: Finished difference. Result has 170 places, 143 transitions, 799 flow [2022-11-20 11:30:53,249 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=799, PETRI_PLACES=170, PETRI_TRANSITIONS=143} [2022-11-20 11:30:53,252 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 29 predicate places. [2022-11-20 11:30:53,253 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 143 transitions, 799 flow [2022-11-20 11:30:53,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.71428571428571) internal successors, (705), 7 states have internal predecessors, (705), 0 states have call successors, (0), 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 11:30:53,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:53,253 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] [2022-11-20 11:30:53,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:30:53,254 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:53,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1916965907, now seen corresponding path program 1 times [2022-11-20 11:30:53,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:53,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599341752] [2022-11-20 11:30:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:53,593 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 11:30:53,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:53,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599341752] [2022-11-20 11:30:53,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599341752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:53,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:53,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:30:53,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419842466] [2022-11-20 11:30:53,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:53,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:30:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:30:53,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:30:53,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 134 [2022-11-20 11:30:53,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 143 transitions, 799 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 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 11:30:53,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:53,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 134 [2022-11-20 11:30:53,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:30:58,574 INFO L130 PetriNetUnfolder]: 14253/24446 cut-off events. [2022-11-20 11:30:58,575 INFO L131 PetriNetUnfolder]: For 126681/138251 co-relation queries the response was YES. [2022-11-20 11:30:58,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91609 conditions, 24446 events. 14253/24446 cut-off events. For 126681/138251 co-relation queries the response was YES. Maximal size of possible extension queue 1614. Compared 213359 event pairs, 851 based on Foata normal form. 783/23628 useless extension candidates. Maximal degree in co-relation 91512. Up to 8446 conditions per place. [2022-11-20 11:30:58,844 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 143 selfloop transitions, 18 changer transitions 20/288 dead transitions. [2022-11-20 11:30:58,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 288 transitions, 2577 flow [2022-11-20 11:30:58,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:30:58,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:30:58,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1172 transitions. [2022-11-20 11:30:58,848 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8746268656716418 [2022-11-20 11:30:58,849 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1172 transitions. [2022-11-20 11:30:58,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1172 transitions. [2022-11-20 11:30:58,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:30:58,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1172 transitions. [2022-11-20 11:30:58,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.2) internal successors, (1172), 10 states have internal predecessors, (1172), 0 states have call successors, (0), 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 11:30:58,855 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 11:30:58,856 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 11:30:58,856 INFO L175 Difference]: Start difference. First operand has 170 places, 143 transitions, 799 flow. Second operand 10 states and 1172 transitions. [2022-11-20 11:30:58,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 288 transitions, 2577 flow [2022-11-20 11:30:59,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 288 transitions, 2485 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-11-20 11:30:59,151 INFO L231 Difference]: Finished difference. Result has 160 places, 159 transitions, 895 flow [2022-11-20 11:30:59,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=895, PETRI_PLACES=160, PETRI_TRANSITIONS=159} [2022-11-20 11:30:59,152 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 19 predicate places. [2022-11-20 11:30:59,153 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 159 transitions, 895 flow [2022-11-20 11:30:59,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 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 11:30:59,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:30:59,153 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:59,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:30:59,154 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:30:59,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:59,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1364468550, now seen corresponding path program 1 times [2022-11-20 11:30:59,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:59,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830391012] [2022-11-20 11:30:59,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:59,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,490 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 11:30:59,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:59,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830391012] [2022-11-20 11:30:59,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830391012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:59,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:59,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:30:59,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753364431] [2022-11-20 11:30:59,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:59,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:30:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:59,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:30:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:30:59,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 134 [2022-11-20 11:30:59,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 159 transitions, 895 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 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 11:30:59,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:30:59,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 134 [2022-11-20 11:30:59,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:02,357 INFO L130 PetriNetUnfolder]: 3721/12067 cut-off events. [2022-11-20 11:31:02,358 INFO L131 PetriNetUnfolder]: For 31345/45999 co-relation queries the response was YES. [2022-11-20 11:31:02,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39907 conditions, 12067 events. 3721/12067 cut-off events. For 31345/45999 co-relation queries the response was YES. Maximal size of possible extension queue 985. Compared 147746 event pairs, 1455 based on Foata normal form. 370/11361 useless extension candidates. Maximal degree in co-relation 39811. Up to 3288 conditions per place. [2022-11-20 11:31:02,528 INFO L137 encePairwiseOnDemand]: 128/134 looper letters, 66 selfloop transitions, 17 changer transitions 8/210 dead transitions. [2022-11-20 11:31:02,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 210 transitions, 1635 flow [2022-11-20 11:31:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:31:02,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:31:02,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1054 transitions. [2022-11-20 11:31:02,533 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8739635157545605 [2022-11-20 11:31:02,534 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1054 transitions. [2022-11-20 11:31:02,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1054 transitions. [2022-11-20 11:31:02,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:02,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1054 transitions. [2022-11-20 11:31:02,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.11111111111111) internal successors, (1054), 9 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:02,540 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 11:31:02,541 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 11:31:02,542 INFO L175 Difference]: Start difference. First operand has 160 places, 159 transitions, 895 flow. Second operand 9 states and 1054 transitions. [2022-11-20 11:31:02,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 210 transitions, 1635 flow [2022-11-20 11:31:02,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 210 transitions, 1621 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:02,650 INFO L231 Difference]: Finished difference. Result has 174 places, 167 transitions, 1058 flow [2022-11-20 11:31:02,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=887, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1058, PETRI_PLACES=174, PETRI_TRANSITIONS=167} [2022-11-20 11:31:02,652 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 33 predicate places. [2022-11-20 11:31:02,652 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 167 transitions, 1058 flow [2022-11-20 11:31:02,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 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 11:31:02,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:02,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:02,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:31:02,654 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:31:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2106693834, now seen corresponding path program 1 times [2022-11-20 11:31:02,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:02,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604128006] [2022-11-20 11:31:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:02,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:03,009 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 11:31:03,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:03,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604128006] [2022-11-20 11:31:03,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604128006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:03,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:03,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:31:03,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373073002] [2022-11-20 11:31:03,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:03,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:31:03,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:03,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:31:03,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:31:03,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 134 [2022-11-20 11:31:03,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 167 transitions, 1058 flow. Second operand has 7 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 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 11:31:03,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:03,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 134 [2022-11-20 11:31:03,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:10,098 INFO L130 PetriNetUnfolder]: 19987/35812 cut-off events. [2022-11-20 11:31:10,098 INFO L131 PetriNetUnfolder]: For 205974/223840 co-relation queries the response was YES. [2022-11-20 11:31:10,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161966 conditions, 35812 events. 19987/35812 cut-off events. For 205974/223840 co-relation queries the response was YES. Maximal size of possible extension queue 2517. Compared 352584 event pairs, 464 based on Foata normal form. 2231/36609 useless extension candidates. Maximal degree in co-relation 161863. Up to 10570 conditions per place. [2022-11-20 11:31:10,453 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 190 selfloop transitions, 36 changer transitions 16/349 dead transitions. [2022-11-20 11:31:10,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 349 transitions, 3433 flow [2022-11-20 11:31:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:31:10,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:31:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1525 transitions. [2022-11-20 11:31:10,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8754305396096441 [2022-11-20 11:31:10,458 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1525 transitions. [2022-11-20 11:31:10,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1525 transitions. [2022-11-20 11:31:10,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:10,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1525 transitions. [2022-11-20 11:31:10,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.3076923076923) internal successors, (1525), 13 states have internal predecessors, (1525), 0 states have call successors, (0), 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 11:31:10,467 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 11:31:10,468 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 11:31:10,468 INFO L175 Difference]: Start difference. First operand has 174 places, 167 transitions, 1058 flow. Second operand 13 states and 1525 transitions. [2022-11-20 11:31:10,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 349 transitions, 3433 flow [2022-11-20 11:31:11,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 349 transitions, 3390 flow, removed 17 selfloop flow, removed 1 redundant places. [2022-11-20 11:31:11,281 INFO L231 Difference]: Finished difference. Result has 191 places, 179 transitions, 1200 flow [2022-11-20 11:31:11,282 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1015, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1200, PETRI_PLACES=191, PETRI_TRANSITIONS=179} [2022-11-20 11:31:11,282 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 50 predicate places. [2022-11-20 11:31:11,283 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 179 transitions, 1200 flow [2022-11-20 11:31:11,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 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 11:31:11,283 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:11,284 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:11,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:31:11,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:31:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:11,285 INFO L85 PathProgramCache]: Analyzing trace with hash 884114749, now seen corresponding path program 1 times [2022-11-20 11:31:11,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:11,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550969920] [2022-11-20 11:31:11,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:11,730 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 11:31:11,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:11,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550969920] [2022-11-20 11:31:11,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550969920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:11,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:11,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:31:11,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072895514] [2022-11-20 11:31:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:11,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:31:11,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:31:11,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:31:11,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 134 [2022-11-20 11:31:11,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 179 transitions, 1200 flow. Second operand has 8 states, 8 states have (on average 110.25) internal successors, (882), 8 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:31:11,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:11,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 134 [2022-11-20 11:31:11,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:18,857 INFO L130 PetriNetUnfolder]: 19018/34543 cut-off events. [2022-11-20 11:31:18,857 INFO L131 PetriNetUnfolder]: For 274132/292461 co-relation queries the response was YES. [2022-11-20 11:31:19,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185314 conditions, 34543 events. 19018/34543 cut-off events. For 274132/292461 co-relation queries the response was YES. Maximal size of possible extension queue 2473. Compared 345241 event pairs, 519 based on Foata normal form. 2240/35516 useless extension candidates. Maximal degree in co-relation 185203. Up to 9886 conditions per place. [2022-11-20 11:31:19,212 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 163 selfloop transitions, 56 changer transitions 77/403 dead transitions. [2022-11-20 11:31:19,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 403 transitions, 4336 flow [2022-11-20 11:31:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:31:19,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-20 11:31:19,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1879 transitions. [2022-11-20 11:31:19,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8763992537313433 [2022-11-20 11:31:19,218 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1879 transitions. [2022-11-20 11:31:19,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1879 transitions. [2022-11-20 11:31:19,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:19,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1879 transitions. [2022-11-20 11:31:19,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.4375) internal successors, (1879), 16 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:19,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 134.0) internal successors, (2278), 17 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:19,231 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 134.0) internal successors, (2278), 17 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:19,231 INFO L175 Difference]: Start difference. First operand has 191 places, 179 transitions, 1200 flow. Second operand 16 states and 1879 transitions. [2022-11-20 11:31:19,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 403 transitions, 4336 flow [2022-11-20 11:31:32,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 403 transitions, 4198 flow, removed 58 selfloop flow, removed 11 redundant places. [2022-11-20 11:31:32,419 INFO L231 Difference]: Finished difference. Result has 193 places, 204 transitions, 1519 flow [2022-11-20 11:31:32,419 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1519, PETRI_PLACES=193, PETRI_TRANSITIONS=204} [2022-11-20 11:31:32,420 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 52 predicate places. [2022-11-20 11:31:32,420 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 204 transitions, 1519 flow [2022-11-20 11:31:32,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 110.25) internal successors, (882), 8 states have internal predecessors, (882), 0 states have call successors, (0), 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 11:31:32,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:31:32,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:32,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:31:32,422 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:31:32,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 624714551, now seen corresponding path program 1 times [2022-11-20 11:31:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:32,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133782334] [2022-11-20 11:31:32,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:32,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:32,806 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 11:31:32,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:32,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133782334] [2022-11-20 11:31:32,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133782334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:32,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:32,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:31:32,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519132046] [2022-11-20 11:31:32,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:32,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:31:32,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:32,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:31:32,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:31:32,815 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 134 [2022-11-20 11:31:32,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 204 transitions, 1519 flow. Second operand has 9 states, 9 states have (on average 110.22222222222223) internal successors, (992), 9 states have internal predecessors, (992), 0 states have call successors, (0), 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 11:31:32,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:31:32,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 134 [2022-11-20 11:31:32,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:31:39,731 INFO L130 PetriNetUnfolder]: 18452/34001 cut-off events. [2022-11-20 11:31:39,731 INFO L131 PetriNetUnfolder]: For 282091/300088 co-relation queries the response was YES. [2022-11-20 11:31:40,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179404 conditions, 34001 events. 18452/34001 cut-off events. For 282091/300088 co-relation queries the response was YES. Maximal size of possible extension queue 2528. Compared 348221 event pairs, 282 based on Foata normal form. 2021/34639 useless extension candidates. Maximal degree in co-relation 179295. Up to 9585 conditions per place. [2022-11-20 11:31:40,098 INFO L137 encePairwiseOnDemand]: 123/134 looper letters, 118 selfloop transitions, 55 changer transitions 112/392 dead transitions. [2022-11-20 11:31:40,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 392 transitions, 4168 flow [2022-11-20 11:31:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:31:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:31:40,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2192 transitions. [2022-11-20 11:31:40,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8609583660644148 [2022-11-20 11:31:40,106 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2192 transitions. [2022-11-20 11:31:40,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2192 transitions. [2022-11-20 11:31:40,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:31:40,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2192 transitions. [2022-11-20 11:31:40,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 115.36842105263158) internal successors, (2192), 19 states have internal predecessors, (2192), 0 states have call successors, (0), 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 11:31:40,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 134.0) internal successors, (2680), 20 states have internal predecessors, (2680), 0 states have call successors, (0), 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 11:31:40,121 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 134.0) internal successors, (2680), 20 states have internal predecessors, (2680), 0 states have call successors, (0), 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 11:31:40,121 INFO L175 Difference]: Start difference. First operand has 193 places, 204 transitions, 1519 flow. Second operand 19 states and 2192 transitions. [2022-11-20 11:31:40,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 392 transitions, 4168 flow [2022-11-20 11:32:03,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 392 transitions, 3362 flow, removed 342 selfloop flow, removed 18 redundant places. [2022-11-20 11:32:03,042 INFO L231 Difference]: Finished difference. Result has 200 places, 193 transitions, 1179 flow [2022-11-20 11:32:03,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1179, PETRI_PLACES=200, PETRI_TRANSITIONS=193} [2022-11-20 11:32:03,044 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 59 predicate places. [2022-11-20 11:32:03,044 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 193 transitions, 1179 flow [2022-11-20 11:32:03,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.22222222222223) internal successors, (992), 9 states have internal predecessors, (992), 0 states have call successors, (0), 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 11:32:03,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:03,045 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:03,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:32:03,045 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:32:03,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:03,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1557452469, now seen corresponding path program 1 times [2022-11-20 11:32:03,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:03,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947696226] [2022-11-20 11:32:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:03,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:03,374 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 11:32:03,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:03,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947696226] [2022-11-20 11:32:03,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947696226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:03,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:03,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:32:03,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764284452] [2022-11-20 11:32:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:03,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:32:03,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:32:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:32:03,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2022-11-20 11:32:03,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 193 transitions, 1179 flow. Second operand has 7 states, 7 states have (on average 112.71428571428571) internal successors, (789), 7 states have internal predecessors, (789), 0 states have call successors, (0), 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 11:32:03,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:03,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2022-11-20 11:32:03,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:32:06,093 INFO L130 PetriNetUnfolder]: 5177/18664 cut-off events. [2022-11-20 11:32:06,094 INFO L131 PetriNetUnfolder]: For 43378/45710 co-relation queries the response was YES. [2022-11-20 11:32:06,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59139 conditions, 18664 events. 5177/18664 cut-off events. For 43378/45710 co-relation queries the response was YES. Maximal size of possible extension queue 2310. Compared 275208 event pairs, 77 based on Foata normal form. 2/17351 useless extension candidates. Maximal degree in co-relation 59032. Up to 2129 conditions per place. [2022-11-20 11:32:06,276 INFO L137 encePairwiseOnDemand]: 128/134 looper letters, 27 selfloop transitions, 1 changer transitions 25/215 dead transitions. [2022-11-20 11:32:06,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 215 transitions, 1453 flow [2022-11-20 11:32:06,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:32:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:32:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 805 transitions. [2022-11-20 11:32:06,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8582089552238806 [2022-11-20 11:32:06,279 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 805 transitions. [2022-11-20 11:32:06,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 805 transitions. [2022-11-20 11:32:06,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:32:06,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 805 transitions. [2022-11-20 11:32:06,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 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 11:32:06,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 0 states have call successors, (0), 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 11:32:06,285 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 134.0) internal successors, (1072), 8 states have internal predecessors, (1072), 0 states have call successors, (0), 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 11:32:06,285 INFO L175 Difference]: Start difference. First operand has 200 places, 193 transitions, 1179 flow. Second operand 7 states and 805 transitions. [2022-11-20 11:32:06,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 215 transitions, 1453 flow [2022-11-20 11:32:08,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 215 transitions, 1283 flow, removed 43 selfloop flow, removed 17 redundant places. [2022-11-20 11:32:08,618 INFO L231 Difference]: Finished difference. Result has 191 places, 187 transitions, 1012 flow [2022-11-20 11:32:08,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=1051, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1012, PETRI_PLACES=191, PETRI_TRANSITIONS=187} [2022-11-20 11:32:08,619 INFO L288 CegarLoopForPetriNet]: 141 programPoint places, 50 predicate places. [2022-11-20 11:32:08,619 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 187 transitions, 1012 flow [2022-11-20 11:32:08,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 112.71428571428571) internal successors, (789), 7 states have internal predecessors, (789), 0 states have call successors, (0), 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 11:32:08,620 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:32:08,620 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:32:08,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:32:08,621 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:32:08,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:32:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1701637847, now seen corresponding path program 2 times [2022-11-20 11:32:08,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:32:08,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162069327] [2022-11-20 11:32:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:32:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:32:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:32:10,519 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 11:32:10,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:32:10,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162069327] [2022-11-20 11:32:10,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162069327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:32:10,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:32:10,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 11:32:10,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822482982] [2022-11-20 11:32:10,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:32:10,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:32:10,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:32:10,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:32:10,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:32:10,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 134 [2022-11-20 11:32:10,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 187 transitions, 1012 flow. Second operand has 14 states, 14 states have (on average 105.78571428571429) internal successors, (1481), 14 states have internal predecessors, (1481), 0 states have call successors, (0), 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 11:32:10,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:32:10,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 134 [2022-11-20 11:32:10,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand