./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.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_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/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_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/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_777b6e25-b1de-4e2a-a46f-071724ce1a2e/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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- 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 11:06:54,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:06:54,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:06:54,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:06:54,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:06:54,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:06:54,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:06:54,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:06:54,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:06:54,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:06:54,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:06:54,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:06:54,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:06:54,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:06:54,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:06:54,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:06:54,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:06:54,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:06:54,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:06:54,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:06:54,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:06:54,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:06:54,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:06:54,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:06:54,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:06:54,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:06:54,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:06:54,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:06:54,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:06:54,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:06:54,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:06:54,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:06:54,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:06:54,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:06:54,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:06:54,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:06:54,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:06:54,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:06:54,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:06:54,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:06:54,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:06:54,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:06:54,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:06:54,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:06:54,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:06:54,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:06:54,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:06:54,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:06:54,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:06:54,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:06:54,390 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:06:54,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:06:54,392 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:06:54,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:06:54,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:06:54,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:06:54,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:06:54,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:06:54,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:06:54,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:06:54,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:06:54,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:06:54,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:06:54,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:06:54,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:06:54,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:06:54,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:54,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:06:54,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:06:54,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:06:54,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:06:54,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:06:54,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:06:54,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:06:54,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:06:54,397 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_777b6e25-b1de-4e2a-a46f-071724ce1a2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2022-11-20 11:06:54,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:06:54,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:06:54,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:06:54,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:06:54,685 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:06:54,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-20 11:06:57,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:06:58,069 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:06:58,070 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-20 11:06:58,091 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/data/544c48b14/6ad3f0ab2a6c458e9ca42b441c1b1632/FLAG0530fa3d6 [2022-11-20 11:06:58,106 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/data/544c48b14/6ad3f0ab2a6c458e9ca42b441c1b1632 [2022-11-20 11:06:58,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:06:58,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:06:58,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:58,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:06:58,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:06:58,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c35457b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58, skipping insertion in model container [2022-11-20 11:06:58,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:06:58,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:06:58,352 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_777b6e25-b1de-4e2a-a46f-071724ce1a2e/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-20 11:06:58,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:58,682 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:06:58,694 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_777b6e25-b1de-4e2a-a46f-071724ce1a2e/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-20 11:06:58,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:06:58,768 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:06:58,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58 WrapperNode [2022-11-20 11:06:58,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:06:58,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:58,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:06:58,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:06:58,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,838 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 157 [2022-11-20 11:06:58,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:06:58,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:06:58,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:06:58,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:06:58,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:06:58,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:06:58,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:06:58,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:06:58,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (1/1) ... [2022-11-20 11:06:58,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:06:58,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:06:58,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:06:58,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777b6e25-b1de-4e2a-a46f-071724ce1a2e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:06:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:06:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:06:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:06:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:06:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:06:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 11:06:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 11:06:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 11:06:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 11:06:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 11:06:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 11:06:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 11:06:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 11:06:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:06:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:06:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:06:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:06:59,017 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 11:06:59,170 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:06:59,172 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:06:59,607 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:06:59,841 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:06:59,841 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:06:59,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:59 BoogieIcfgContainer [2022-11-20 11:06:59,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:06:59,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:06:59,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:06:59,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:06:59,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:06:58" (1/3) ... [2022-11-20 11:06:59,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252a2b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:59, skipping insertion in model container [2022-11-20 11:06:59,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:06:58" (2/3) ... [2022-11-20 11:06:59,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252a2b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:06:59, skipping insertion in model container [2022-11-20 11:06:59,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:06:59" (3/3) ... [2022-11-20 11:06:59,855 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-20 11:06:59,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:06:59,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:06:59,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:06:59,878 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:06:59,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:07:00,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-11-20 11:07:00,082 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-11-20 11:07:00,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:07:00,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-11-20 11:07:00,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-11-20 11:07:00,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-11-20 11:07:00,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:07:00,123 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;@732effc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:07:00,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:07:00,149 INFO L130 PetriNetUnfolder]: 0/88 cut-off events. [2022-11-20 11:07:00,149 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:07:00,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:00,150 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] [2022-11-20 11:07:00,151 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 11:07:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1150122772, now seen corresponding path program 1 times [2022-11-20 11:07:00,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:00,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927896949] [2022-11-20 11:07:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:00,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:00,949 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 11:07:00,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:00,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927896949] [2022-11-20 11:07:00,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927896949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:00,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:00,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:07:00,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884812053] [2022-11-20 11:07:00,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:00,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:07:00,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:00,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:07:00,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:07:00,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 132 [2022-11-20 11:07:00,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 11:07:00,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:00,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 132 [2022-11-20 11:07:01,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:01,171 INFO L130 PetriNetUnfolder]: 17/270 cut-off events. [2022-11-20 11:07:01,171 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 11:07:01,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 270 events. 17/270 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 811 event pairs, 7 based on Foata normal form. 8/266 useless extension candidates. Maximal degree in co-relation 271. Up to 27 conditions per place. [2022-11-20 11:07:01,176 INFO L137 encePairwiseOnDemand]: 127/132 looper letters, 11 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2022-11-20 11:07:01,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 127 transitions, 292 flow [2022-11-20 11:07:01,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:07:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:07:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2022-11-20 11:07:01,190 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2022-11-20 11:07:01,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2022-11-20 11:07:01,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2022-11-20 11:07:01,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:01,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2022-11-20 11:07:01,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:07:01,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 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 11:07:01,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 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 11:07:01,212 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 3 states and 372 transitions. [2022-11-20 11:07:01,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 127 transitions, 292 flow [2022-11-20 11:07:01,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 127 transitions, 288 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:07:01,221 INFO L231 Difference]: Finished difference. Result has 135 places, 124 transitions, 260 flow [2022-11-20 11:07:01,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=135, PETRI_TRANSITIONS=124} [2022-11-20 11:07:01,234 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, -4 predicate places. [2022-11-20 11:07:01,234 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 124 transitions, 260 flow [2022-11-20 11:07:01,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 11:07:01,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:01,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:01,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:07:01,236 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 11:07:01,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:01,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1363806399, now seen corresponding path program 1 times [2022-11-20 11:07:01,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:01,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564024237] [2022-11-20 11:07:01,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:01,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:02,602 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 11:07:02,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:02,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564024237] [2022-11-20 11:07:02,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564024237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:02,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:02,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:02,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96685870] [2022-11-20 11:07:02,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:02,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:02,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2022-11-20 11:07:02,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 260 flow. Second operand has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:07:02,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:02,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2022-11-20 11:07:02,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:05,528 INFO L130 PetriNetUnfolder]: 4296/11094 cut-off events. [2022-11-20 11:07:05,528 INFO L131 PetriNetUnfolder]: For 452/452 co-relation queries the response was YES. [2022-11-20 11:07:05,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17835 conditions, 11094 events. 4296/11094 cut-off events. For 452/452 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 111216 event pairs, 338 based on Foata normal form. 0/10843 useless extension candidates. Maximal degree in co-relation 17772. Up to 2396 conditions per place. [2022-11-20 11:07:05,601 INFO L137 encePairwiseOnDemand]: 117/132 looper letters, 42 selfloop transitions, 13 changer transitions 104/239 dead transitions. [2022-11-20 11:07:05,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 239 transitions, 810 flow [2022-11-20 11:07:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:07:05,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:07:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1410 transitions. [2022-11-20 11:07:05,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8216783216783217 [2022-11-20 11:07:05,607 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1410 transitions. [2022-11-20 11:07:05,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1410 transitions. [2022-11-20 11:07:05,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:05,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1410 transitions. [2022-11-20 11:07:05,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.46153846153847) internal successors, (1410), 13 states have internal predecessors, (1410), 0 states have call successors, (0), 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 11:07:05,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:05,617 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:05,617 INFO L175 Difference]: Start difference. First operand has 135 places, 124 transitions, 260 flow. Second operand 13 states and 1410 transitions. [2022-11-20 11:07:05,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 239 transitions, 810 flow [2022-11-20 11:07:05,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 239 transitions, 784 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:07:05,623 INFO L231 Difference]: Finished difference. Result has 157 places, 121 transitions, 378 flow [2022-11-20 11:07:05,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=378, PETRI_PLACES=157, PETRI_TRANSITIONS=121} [2022-11-20 11:07:05,624 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 18 predicate places. [2022-11-20 11:07:05,624 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 121 transitions, 378 flow [2022-11-20 11:07:05,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:07:05,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:05,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:05,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:07:05,626 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 11:07:05,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash 732991006, now seen corresponding path program 1 times [2022-11-20 11:07:05,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:05,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670708888] [2022-11-20 11:07:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:06,613 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 11:07:06,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:06,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670708888] [2022-11-20 11:07:06,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670708888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:06,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:06,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:06,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344344693] [2022-11-20 11:07:06,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:06,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:06,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:06,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:06,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:06,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2022-11-20 11:07:06,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 121 transitions, 378 flow. Second operand has 7 states, 7 states have (on average 100.14285714285714) internal successors, (701), 7 states have internal predecessors, (701), 0 states have call successors, (0), 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 11:07:06,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:06,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2022-11-20 11:07:06,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:08,623 INFO L130 PetriNetUnfolder]: 2886/6034 cut-off events. [2022-11-20 11:07:08,624 INFO L131 PetriNetUnfolder]: For 12829/17734 co-relation queries the response was YES. [2022-11-20 11:07:08,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20286 conditions, 6034 events. 2886/6034 cut-off events. For 12829/17734 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 48400 event pairs, 636 based on Foata normal form. 119/5990 useless extension candidates. Maximal degree in co-relation 20209. Up to 1957 conditions per place. [2022-11-20 11:07:08,680 INFO L137 encePairwiseOnDemand]: 118/132 looper letters, 48 selfloop transitions, 21 changer transitions 79/228 dead transitions. [2022-11-20 11:07:08,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 228 transitions, 1430 flow [2022-11-20 11:07:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:07:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:07:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1401 transitions. [2022-11-20 11:07:08,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8164335664335665 [2022-11-20 11:07:08,687 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1401 transitions. [2022-11-20 11:07:08,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1401 transitions. [2022-11-20 11:07:08,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:08,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1401 transitions. [2022-11-20 11:07:08,692 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 11:07:08,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:08,698 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:08,698 INFO L175 Difference]: Start difference. First operand has 157 places, 121 transitions, 378 flow. Second operand 13 states and 1401 transitions. [2022-11-20 11:07:08,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 228 transitions, 1430 flow [2022-11-20 11:07:08,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 228 transitions, 1406 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-11-20 11:07:08,733 INFO L231 Difference]: Finished difference. Result has 155 places, 132 transitions, 584 flow [2022-11-20 11:07:08,734 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=584, PETRI_PLACES=155, PETRI_TRANSITIONS=132} [2022-11-20 11:07:08,736 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 16 predicate places. [2022-11-20 11:07:08,737 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 132 transitions, 584 flow [2022-11-20 11:07:08,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 100.14285714285714) internal successors, (701), 7 states have internal predecessors, (701), 0 states have call successors, (0), 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 11:07:08,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:08,738 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 11:07:08,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:07:08,738 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 11:07:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1841906544, now seen corresponding path program 1 times [2022-11-20 11:07:08,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:08,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088826163] [2022-11-20 11:07:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:08,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:09,743 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 11:07:09,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:09,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088826163] [2022-11-20 11:07:09,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088826163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:09,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:09,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:09,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398751882] [2022-11-20 11:07:09,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:09,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:09,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:09,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:09,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:09,746 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2022-11-20 11:07:09,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 132 transitions, 584 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 11:07:09,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:09,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2022-11-20 11:07:09,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:11,986 INFO L130 PetriNetUnfolder]: 2639/5867 cut-off events. [2022-11-20 11:07:11,986 INFO L131 PetriNetUnfolder]: For 25366/39494 co-relation queries the response was YES. [2022-11-20 11:07:12,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24304 conditions, 5867 events. 2639/5867 cut-off events. For 25366/39494 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 48994 event pairs, 723 based on Foata normal form. 103/5798 useless extension candidates. Maximal degree in co-relation 24216. Up to 1918 conditions per place. [2022-11-20 11:07:12,051 INFO L137 encePairwiseOnDemand]: 117/132 looper letters, 54 selfloop transitions, 24 changer transitions 79/237 dead transitions. [2022-11-20 11:07:12,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 237 transitions, 1832 flow [2022-11-20 11:07:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:07:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:07:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1388 transitions. [2022-11-20 11:07:12,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8088578088578089 [2022-11-20 11:07:12,056 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1388 transitions. [2022-11-20 11:07:12,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1388 transitions. [2022-11-20 11:07:12,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:12,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1388 transitions. [2022-11-20 11:07:12,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.76923076923077) internal successors, (1388), 13 states have internal predecessors, (1388), 0 states have call successors, (0), 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 11:07:12,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:12,071 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:12,071 INFO L175 Difference]: Start difference. First operand has 155 places, 132 transitions, 584 flow. Second operand 13 states and 1388 transitions. [2022-11-20 11:07:12,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 237 transitions, 1832 flow [2022-11-20 11:07:12,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 237 transitions, 1734 flow, removed 49 selfloop flow, removed 9 redundant places. [2022-11-20 11:07:12,157 INFO L231 Difference]: Finished difference. Result has 161 places, 138 transitions, 776 flow [2022-11-20 11:07:12,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=776, PETRI_PLACES=161, PETRI_TRANSITIONS=138} [2022-11-20 11:07:12,164 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 22 predicate places. [2022-11-20 11:07:12,164 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 138 transitions, 776 flow [2022-11-20 11:07:12,165 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 11:07:12,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:12,165 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 11:07:12,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:07:12,166 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 11:07:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:12,167 INFO L85 PathProgramCache]: Analyzing trace with hash 508057983, now seen corresponding path program 1 times [2022-11-20 11:07:12,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:12,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426802878] [2022-11-20 11:07:12,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:12,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:13,080 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 11:07:13,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:13,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426802878] [2022-11-20 11:07:13,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426802878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:13,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:13,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:07:13,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445740876] [2022-11-20 11:07:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:13,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:07:13,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:13,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:07:13,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:07:13,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 132 [2022-11-20 11:07:13,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 138 transitions, 776 flow. Second operand has 9 states, 9 states have (on average 110.55555555555556) internal successors, (995), 9 states have internal predecessors, (995), 0 states have call successors, (0), 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 11:07:13,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:13,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 132 [2022-11-20 11:07:13,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:14,601 INFO L130 PetriNetUnfolder]: 2233/4972 cut-off events. [2022-11-20 11:07:14,601 INFO L131 PetriNetUnfolder]: For 41917/63298 co-relation queries the response was YES. [2022-11-20 11:07:14,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23970 conditions, 4972 events. 2233/4972 cut-off events. For 41917/63298 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 42141 event pairs, 620 based on Foata normal form. 459/5255 useless extension candidates. Maximal degree in co-relation 23882. Up to 2080 conditions per place. [2022-11-20 11:07:14,661 INFO L137 encePairwiseOnDemand]: 121/132 looper letters, 30 selfloop transitions, 18 changer transitions 64/221 dead transitions. [2022-11-20 11:07:14,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 221 transitions, 1972 flow [2022-11-20 11:07:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:07:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 11:07:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1589 transitions. [2022-11-20 11:07:14,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8598484848484849 [2022-11-20 11:07:14,667 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1589 transitions. [2022-11-20 11:07:14,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1589 transitions. [2022-11-20 11:07:14,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:14,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1589 transitions. [2022-11-20 11:07:14,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.5) internal successors, (1589), 14 states have internal predecessors, (1589), 0 states have call successors, (0), 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 11:07:14,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 132.0) internal successors, (1980), 15 states have internal predecessors, (1980), 0 states have call successors, (0), 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 11:07:14,678 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 132.0) internal successors, (1980), 15 states have internal predecessors, (1980), 0 states have call successors, (0), 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 11:07:14,678 INFO L175 Difference]: Start difference. First operand has 161 places, 138 transitions, 776 flow. Second operand 14 states and 1589 transitions. [2022-11-20 11:07:14,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 221 transitions, 1972 flow [2022-11-20 11:07:14,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 221 transitions, 1886 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-11-20 11:07:14,744 INFO L231 Difference]: Finished difference. Result has 172 places, 152 transitions, 1039 flow [2022-11-20 11:07:14,744 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1039, PETRI_PLACES=172, PETRI_TRANSITIONS=152} [2022-11-20 11:07:14,745 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 33 predicate places. [2022-11-20 11:07:14,745 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 152 transitions, 1039 flow [2022-11-20 11:07:14,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.55555555555556) internal successors, (995), 9 states have internal predecessors, (995), 0 states have call successors, (0), 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 11:07:14,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:14,746 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:14,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:07:14,747 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 11:07:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1677667651, now seen corresponding path program 1 times [2022-11-20 11:07:14,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:14,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682157255] [2022-11-20 11:07:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:16,060 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 11:07:16,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:16,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682157255] [2022-11-20 11:07:16,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682157255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:16,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:16,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:07:16,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342577393] [2022-11-20 11:07:16,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:16,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:07:16,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:16,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:07:16,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:07:16,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2022-11-20 11:07:16,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 152 transitions, 1039 flow. Second operand has 8 states, 8 states have (on average 100.0) internal successors, (800), 8 states have internal predecessors, (800), 0 states have call successors, (0), 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 11:07:16,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:16,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2022-11-20 11:07:16,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:18,173 INFO L130 PetriNetUnfolder]: 2675/5980 cut-off events. [2022-11-20 11:07:18,174 INFO L131 PetriNetUnfolder]: For 51469/123269 co-relation queries the response was YES. [2022-11-20 11:07:18,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32652 conditions, 5980 events. 2675/5980 cut-off events. For 51469/123269 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 50673 event pairs, 139 based on Foata normal form. 106/5956 useless extension candidates. Maximal degree in co-relation 32545. Up to 2024 conditions per place. [2022-11-20 11:07:18,249 INFO L137 encePairwiseOnDemand]: 115/132 looper letters, 63 selfloop transitions, 60 changer transitions 111/314 dead transitions. [2022-11-20 11:07:18,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 314 transitions, 3684 flow [2022-11-20 11:07:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:07:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:07:18,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1799 transitions. [2022-11-20 11:07:18,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.801693404634581 [2022-11-20 11:07:18,255 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1799 transitions. [2022-11-20 11:07:18,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1799 transitions. [2022-11-20 11:07:18,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:18,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1799 transitions. [2022-11-20 11:07:18,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 105.82352941176471) internal successors, (1799), 17 states have internal predecessors, (1799), 0 states have call successors, (0), 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 11:07:18,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 132.0) internal successors, (2376), 18 states have internal predecessors, (2376), 0 states have call successors, (0), 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 11:07:18,268 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 132.0) internal successors, (2376), 18 states have internal predecessors, (2376), 0 states have call successors, (0), 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 11:07:18,268 INFO L175 Difference]: Start difference. First operand has 172 places, 152 transitions, 1039 flow. Second operand 17 states and 1799 transitions. [2022-11-20 11:07:18,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 314 transitions, 3684 flow [2022-11-20 11:07:18,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 314 transitions, 3636 flow, removed 23 selfloop flow, removed 4 redundant places. [2022-11-20 11:07:18,388 INFO L231 Difference]: Finished difference. Result has 189 places, 176 transitions, 1569 flow [2022-11-20 11:07:18,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1569, PETRI_PLACES=189, PETRI_TRANSITIONS=176} [2022-11-20 11:07:18,389 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 50 predicate places. [2022-11-20 11:07:18,390 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 176 transitions, 1569 flow [2022-11-20 11:07:18,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 100.0) internal successors, (800), 8 states have internal predecessors, (800), 0 states have call successors, (0), 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 11:07:18,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:18,391 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:18,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:07:18,391 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 11:07:18,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:18,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1111443141, now seen corresponding path program 2 times [2022-11-20 11:07:18,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:18,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363555741] [2022-11-20 11:07:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:18,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:19,771 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 11:07:19,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:19,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363555741] [2022-11-20 11:07:19,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363555741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:19,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:19,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:07:19,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762677201] [2022-11-20 11:07:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:19,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:07:19,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:19,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:07:19,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:07:19,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 132 [2022-11-20 11:07:19,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 176 transitions, 1569 flow. Second operand has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 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 11:07:19,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:19,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 132 [2022-11-20 11:07:19,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:21,747 INFO L130 PetriNetUnfolder]: 3048/6651 cut-off events. [2022-11-20 11:07:21,748 INFO L131 PetriNetUnfolder]: For 107160/134928 co-relation queries the response was YES. [2022-11-20 11:07:21,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43351 conditions, 6651 events. 3048/6651 cut-off events. For 107160/134928 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 56676 event pairs, 224 based on Foata normal form. 301/6787 useless extension candidates. Maximal degree in co-relation 43234. Up to 2308 conditions per place. [2022-11-20 11:07:21,858 INFO L137 encePairwiseOnDemand]: 118/132 looper letters, 91 selfloop transitions, 55 changer transitions 179/409 dead transitions. [2022-11-20 11:07:21,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 409 transitions, 6184 flow [2022-11-20 11:07:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:07:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-20 11:07:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1654 transitions. [2022-11-20 11:07:21,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8353535353535354 [2022-11-20 11:07:21,865 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1654 transitions. [2022-11-20 11:07:21,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1654 transitions. [2022-11-20 11:07:21,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:21,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1654 transitions. [2022-11-20 11:07:22,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 110.26666666666667) internal successors, (1654), 15 states have internal predecessors, (1654), 0 states have call successors, (0), 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 11:07:22,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 132.0) internal successors, (2112), 16 states have internal predecessors, (2112), 0 states have call successors, (0), 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 11:07:22,020 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 132.0) internal successors, (2112), 16 states have internal predecessors, (2112), 0 states have call successors, (0), 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 11:07:22,020 INFO L175 Difference]: Start difference. First operand has 189 places, 176 transitions, 1569 flow. Second operand 15 states and 1654 transitions. [2022-11-20 11:07:22,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 409 transitions, 6184 flow [2022-11-20 11:07:22,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 409 transitions, 5908 flow, removed 138 selfloop flow, removed 12 redundant places. [2022-11-20 11:07:22,395 INFO L231 Difference]: Finished difference. Result has 191 places, 202 transitions, 2243 flow [2022-11-20 11:07:22,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2243, PETRI_PLACES=191, PETRI_TRANSITIONS=202} [2022-11-20 11:07:22,396 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 52 predicate places. [2022-11-20 11:07:22,397 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 202 transitions, 2243 flow [2022-11-20 11:07:22,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 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 11:07:22,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:22,398 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:22,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:07:22,398 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 11:07:22,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:22,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1074768872, now seen corresponding path program 1 times [2022-11-20 11:07:22,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:22,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576788406] [2022-11-20 11:07:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:23,626 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 11:07:23,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:23,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576788406] [2022-11-20 11:07:23,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576788406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:23,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:23,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:07:23,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292650716] [2022-11-20 11:07:23,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:23,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:07:23,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:23,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:07:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:07:23,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 132 [2022-11-20 11:07:23,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 202 transitions, 2243 flow. Second operand has 11 states, 11 states have (on average 108.63636363636364) internal successors, (1195), 11 states have internal predecessors, (1195), 0 states have call successors, (0), 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 11:07:23,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:23,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 132 [2022-11-20 11:07:23,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:25,070 INFO L130 PetriNetUnfolder]: 1886/4930 cut-off events. [2022-11-20 11:07:25,070 INFO L131 PetriNetUnfolder]: For 79468/138623 co-relation queries the response was YES. [2022-11-20 11:07:25,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31617 conditions, 4930 events. 1886/4930 cut-off events. For 79468/138623 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 45770 event pairs, 231 based on Foata normal form. 373/5130 useless extension candidates. Maximal degree in co-relation 31498. Up to 1659 conditions per place. [2022-11-20 11:07:25,132 INFO L137 encePairwiseOnDemand]: 122/132 looper letters, 57 selfloop transitions, 18 changer transitions 28/241 dead transitions. [2022-11-20 11:07:25,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 241 transitions, 3262 flow [2022-11-20 11:07:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:07:25,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:07:25,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1435 transitions. [2022-11-20 11:07:25,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8362470862470862 [2022-11-20 11:07:25,136 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1435 transitions. [2022-11-20 11:07:25,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1435 transitions. [2022-11-20 11:07:25,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:25,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1435 transitions. [2022-11-20 11:07:25,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 110.38461538461539) internal successors, (1435), 13 states have internal predecessors, (1435), 0 states have call successors, (0), 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 11:07:25,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:25,145 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 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 11:07:25,145 INFO L175 Difference]: Start difference. First operand has 191 places, 202 transitions, 2243 flow. Second operand 13 states and 1435 transitions. [2022-11-20 11:07:25,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 241 transitions, 3262 flow [2022-11-20 11:07:25,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 241 transitions, 3185 flow, removed 37 selfloop flow, removed 5 redundant places. [2022-11-20 11:07:25,352 INFO L231 Difference]: Finished difference. Result has 196 places, 205 transitions, 2374 flow [2022-11-20 11:07:25,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=2204, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2374, PETRI_PLACES=196, PETRI_TRANSITIONS=205} [2022-11-20 11:07:25,355 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 57 predicate places. [2022-11-20 11:07:25,356 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 205 transitions, 2374 flow [2022-11-20 11:07:25,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 108.63636363636364) internal successors, (1195), 11 states have internal predecessors, (1195), 0 states have call successors, (0), 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 11:07:25,356 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:25,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:25,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:07:25,357 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 11:07:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2068686181, now seen corresponding path program 1 times [2022-11-20 11:07:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:25,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54510725] [2022-11-20 11:07:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:25,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:26,829 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 11:07:26,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:26,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54510725] [2022-11-20 11:07:26,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54510725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:26,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:26,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:07:26,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023869021] [2022-11-20 11:07:26,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:26,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:07:26,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:26,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:07:26,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:07:26,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2022-11-20 11:07:26,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 205 transitions, 2374 flow. Second operand has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 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 11:07:26,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:26,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2022-11-20 11:07:26,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:28,803 INFO L130 PetriNetUnfolder]: 2214/5190 cut-off events. [2022-11-20 11:07:28,803 INFO L131 PetriNetUnfolder]: For 94145/145374 co-relation queries the response was YES. [2022-11-20 11:07:28,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36709 conditions, 5190 events. 2214/5190 cut-off events. For 94145/145374 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 44631 event pairs, 148 based on Foata normal form. 214/5209 useless extension candidates. Maximal degree in co-relation 36578. Up to 1681 conditions per place. [2022-11-20 11:07:28,877 INFO L137 encePairwiseOnDemand]: 111/132 looper letters, 98 selfloop transitions, 75 changer transitions 173/426 dead transitions. [2022-11-20 11:07:28,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 426 transitions, 7445 flow [2022-11-20 11:07:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:07:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:07:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1977 transitions. [2022-11-20 11:07:28,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7882775119617225 [2022-11-20 11:07:28,884 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1977 transitions. [2022-11-20 11:07:28,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1977 transitions. [2022-11-20 11:07:28,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:28,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1977 transitions. [2022-11-20 11:07:28,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 104.05263157894737) internal successors, (1977), 19 states have internal predecessors, (1977), 0 states have call successors, (0), 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 11:07:28,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 132.0) internal successors, (2640), 20 states have internal predecessors, (2640), 0 states have call successors, (0), 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 11:07:28,898 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 132.0) internal successors, (2640), 20 states have internal predecessors, (2640), 0 states have call successors, (0), 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 11:07:28,899 INFO L175 Difference]: Start difference. First operand has 196 places, 205 transitions, 2374 flow. Second operand 19 states and 1977 transitions. [2022-11-20 11:07:28,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 426 transitions, 7445 flow [2022-11-20 11:07:29,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 426 transitions, 7038 flow, removed 146 selfloop flow, removed 15 redundant places. [2022-11-20 11:07:29,187 INFO L231 Difference]: Finished difference. Result has 205 places, 227 transitions, 3045 flow [2022-11-20 11:07:29,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=2225, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3045, PETRI_PLACES=205, PETRI_TRANSITIONS=227} [2022-11-20 11:07:29,188 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 66 predicate places. [2022-11-20 11:07:29,188 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 227 transitions, 3045 flow [2022-11-20 11:07:29,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 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 11:07:29,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:29,190 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 11:07:29,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:07:29,190 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 11:07:29,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1026888122, now seen corresponding path program 1 times [2022-11-20 11:07:29,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:29,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572834407] [2022-11-20 11:07:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:29,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:29,504 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 11:07:29,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:29,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572834407] [2022-11-20 11:07:29,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572834407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:29,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:29,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:07:29,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958995322] [2022-11-20 11:07:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:29,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:07:29,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:29,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:07:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:07:29,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 132 [2022-11-20 11:07:29,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 227 transitions, 3045 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 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 11:07:29,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:29,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 132 [2022-11-20 11:07:29,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:07:36,069 INFO L130 PetriNetUnfolder]: 16444/29739 cut-off events. [2022-11-20 11:07:36,069 INFO L131 PetriNetUnfolder]: For 493403/547487 co-relation queries the response was YES. [2022-11-20 11:07:36,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142944 conditions, 29739 events. 16444/29739 cut-off events. For 493403/547487 co-relation queries the response was YES. Maximal size of possible extension queue 2093. Compared 282823 event pairs, 789 based on Foata normal form. 3090/30887 useless extension candidates. Maximal degree in co-relation 142816. Up to 10302 conditions per place. [2022-11-20 11:07:36,494 INFO L137 encePairwiseOnDemand]: 121/132 looper letters, 169 selfloop transitions, 18 changer transitions 90/440 dead transitions. [2022-11-20 11:07:36,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 440 transitions, 7692 flow [2022-11-20 11:07:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:07:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:07:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1154 transitions. [2022-11-20 11:07:36,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8742424242424243 [2022-11-20 11:07:36,499 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1154 transitions. [2022-11-20 11:07:36,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1154 transitions. [2022-11-20 11:07:36,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:07:36,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1154 transitions. [2022-11-20 11:07:36,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 115.4) internal successors, (1154), 10 states have internal predecessors, (1154), 0 states have call successors, (0), 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 11:07:36,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 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 11:07:36,525 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 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 11:07:36,525 INFO L175 Difference]: Start difference. First operand has 205 places, 227 transitions, 3045 flow. Second operand 10 states and 1154 transitions. [2022-11-20 11:07:36,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 440 transitions, 7692 flow [2022-11-20 11:07:37,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 440 transitions, 7358 flow, removed 144 selfloop flow, removed 9 redundant places. [2022-11-20 11:07:37,660 INFO L231 Difference]: Finished difference. Result has 202 places, 241 transitions, 3028 flow [2022-11-20 11:07:37,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=2896, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3028, PETRI_PLACES=202, PETRI_TRANSITIONS=241} [2022-11-20 11:07:37,661 INFO L288 CegarLoopForPetriNet]: 139 programPoint places, 63 predicate places. [2022-11-20 11:07:37,661 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 241 transitions, 3028 flow [2022-11-20 11:07:37,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 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 11:07:37,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:07:37,663 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:07:37,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:07:37,663 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 11:07:37,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:07:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash -516923342, now seen corresponding path program 1 times [2022-11-20 11:07:37,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:07:37,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875467966] [2022-11-20 11:07:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:07:37,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:07:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:07:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:07:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:07:37,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875467966] [2022-11-20 11:07:37,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875467966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:07:37,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:07:37,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:07:37,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371184841] [2022-11-20 11:07:37,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:07:37,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:07:37,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:07:37,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:07:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:07:37,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 132 [2022-11-20 11:07:37,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 241 transitions, 3028 flow. Second operand has 7 states, 7 states have (on average 109.28571428571429) internal successors, (765), 7 states have internal predecessors, (765), 0 states have call successors, (0), 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 11:07:37,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:07:37,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 132 [2022-11-20 11:07:37,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand