./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/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_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/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_59f6e571-f4aa-4e8d-aa14-16e488c282c4/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 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 --- 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 11:48:57,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:48:57,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:48:57,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:48:57,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:48:57,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:48:57,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:48:57,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:48:57,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:48:57,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:48:57,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:48:57,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:48:57,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:48:57,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:48:57,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:48:57,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:48:57,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:48:57,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:48:57,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:48:57,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:48:57,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:48:57,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:48:57,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:48:57,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:48:57,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:48:57,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:48:57,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:48:57,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:48:57,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:48:57,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:48:57,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:48:57,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:48:57,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:48:57,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:48:57,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:48:57,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:48:57,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:48:57,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:48:57,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:48:57,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:48:57,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:48:57,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:48:57,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:48:57,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:48:57,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:48:57,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:48:57,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:48:57,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:48:57,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:48:57,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:48:57,284 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:48:57,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:48:57,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:48:57,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:48:57,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:48:57,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:48:57,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:48:57,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:48:57,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:48:57,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:48:57,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:48:57,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:48:57,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:48:57,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:48:57,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:48:57,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:48:57,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:48:57,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:48:57,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:48:57,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:48:57,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:48:57,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:48:57,291 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:48:57,291 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:48:57,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:48:57,292 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_59f6e571-f4aa-4e8d-aa14-16e488c282c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 [2022-11-20 11:48:57,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:48:57,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:48:57,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:48:57,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:48:57,584 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:48:57,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2022-11-20 11:49:00,688 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:49:01,000 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:49:01,001 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2022-11-20 11:49:01,029 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/data/2d697cf39/7394f77f7cf3402c8b38d9f7407bb3e0/FLAG666dc4179 [2022-11-20 11:49:01,045 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/data/2d697cf39/7394f77f7cf3402c8b38d9f7407bb3e0 [2022-11-20 11:49:01,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:49:01,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:49:01,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:49:01,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:49:01,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:49:01,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be14ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01, skipping insertion in model container [2022-11-20 11:49:01,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:49:01,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:49:01,303 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_59f6e571-f4aa-4e8d-aa14-16e488c282c4/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-11-20 11:49:01,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:49:01,565 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:49:01,578 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_59f6e571-f4aa-4e8d-aa14-16e488c282c4/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i[949,962] [2022-11-20 11:49:01,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:49:01,717 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:49:01,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01 WrapperNode [2022-11-20 11:49:01,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:49:01,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:49:01,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:49:01,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:49:01,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,818 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 274 [2022-11-20 11:49:01,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:49:01,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:49:01,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:49:01,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:49:01,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:49:01,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:49:01,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:49:01,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:49:01,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (1/1) ... [2022-11-20 11:49:01,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:49:01,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:49:01,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:49:01,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59f6e571-f4aa-4e8d-aa14-16e488c282c4/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:49:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:49:01,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:49:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:49:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:49:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:49:01,968 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 11:49:01,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 11:49:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 11:49:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 11:49:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 11:49:01,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 11:49:01,969 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 11:49:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 11:49:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:49:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:49:01,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:49:01,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:49:01,972 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 11:49:02,130 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:49:02,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:49:02,772 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:49:03,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:49:03,103 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:49:03,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:03 BoogieIcfgContainer [2022-11-20 11:49:03,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:49:03,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:49:03,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:49:03,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:49:03,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:49:01" (1/3) ... [2022-11-20 11:49:03,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0b9ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:03, skipping insertion in model container [2022-11-20 11:49:03,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:01" (2/3) ... [2022-11-20 11:49:03,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0b9ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:03, skipping insertion in model container [2022-11-20 11:49:03,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:03" (3/3) ... [2022-11-20 11:49:03,118 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_tso.oepc.i [2022-11-20 11:49:03,127 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:49:03,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:49:03,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:49:03,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:49:03,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:49:03,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 334 flow [2022-11-20 11:49:03,390 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-11-20 11:49:03,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:49:03,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 153 events. 2/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-20 11:49:03,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 157 transitions, 334 flow [2022-11-20 11:49:03,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 153 transitions, 318 flow [2022-11-20 11:49:03,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:49:03,441 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;@e4489c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:49:03,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-20 11:49:03,476 INFO L130 PetriNetUnfolder]: 0/96 cut-off events. [2022-11-20 11:49:03,477 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:49:03,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:03,478 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] [2022-11-20 11:49:03,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:03,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:03,487 INFO L85 PathProgramCache]: Analyzing trace with hash -412309149, now seen corresponding path program 1 times [2022-11-20 11:49:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:03,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580554794] [2022-11-20 11:49:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:03,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:04,341 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 11:49:04,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:04,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580554794] [2022-11-20 11:49:04,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580554794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:04,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:04,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:49:04,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453734465] [2022-11-20 11:49:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:04,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:49:04,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:04,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:49:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:04,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 157 [2022-11-20 11:49:04,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 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 11:49:04,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:04,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 157 [2022-11-20 11:49:04,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:04,960 INFO L130 PetriNetUnfolder]: 280/1697 cut-off events. [2022-11-20 11:49:04,960 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 11:49:04,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2175 conditions, 1697 events. 280/1697 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 14232 event pairs, 186 based on Foata normal form. 54/1613 useless extension candidates. Maximal degree in co-relation 2099. Up to 377 conditions per place. [2022-11-20 11:49:04,987 INFO L137 encePairwiseOnDemand]: 152/157 looper letters, 22 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2022-11-20 11:49:04,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 157 transitions, 377 flow [2022-11-20 11:49:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:49:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:49:05,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2022-11-20 11:49:05,009 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9341825902335457 [2022-11-20 11:49:05,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2022-11-20 11:49:05,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2022-11-20 11:49:05,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:05,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2022-11-20 11:49:05,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 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 11:49:05,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 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 11:49:05,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 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 11:49:05,034 INFO L175 Difference]: Start difference. First operand has 164 places, 153 transitions, 318 flow. Second operand 3 states and 440 transitions. [2022-11-20 11:49:05,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 157 transitions, 377 flow [2022-11-20 11:49:05,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 157 transitions, 372 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:49:05,044 INFO L231 Difference]: Finished difference. Result has 160 places, 149 transitions, 310 flow [2022-11-20 11:49:05,046 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=160, PETRI_TRANSITIONS=149} [2022-11-20 11:49:05,053 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -4 predicate places. [2022-11-20 11:49:05,054 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 149 transitions, 310 flow [2022-11-20 11:49:05,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 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 11:49:05,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:05,054 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 11:49:05,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:49:05,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:05,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash -692183132, now seen corresponding path program 1 times [2022-11-20 11:49:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:05,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838319748] [2022-11-20 11:49:05,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:05,383 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 11:49:05,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:05,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838319748] [2022-11-20 11:49:05,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838319748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:05,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:05,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:49:05,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272250406] [2022-11-20 11:49:05,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:05,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:49:05,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:05,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:49:05,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:05,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 157 [2022-11-20 11:49:05,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 149 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 11:49:05,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:05,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 157 [2022-11-20 11:49:05,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:05,700 INFO L130 PetriNetUnfolder]: 221/811 cut-off events. [2022-11-20 11:49:05,700 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-20 11:49:05,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 811 events. 221/811 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4599 event pairs, 44 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 1150. Up to 268 conditions per place. [2022-11-20 11:49:05,708 INFO L137 encePairwiseOnDemand]: 154/157 looper letters, 20 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2022-11-20 11:49:05,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 155 transitions, 368 flow [2022-11-20 11:49:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:49:05,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:49:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2022-11-20 11:49:05,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.921443736730361 [2022-11-20 11:49:05,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2022-11-20 11:49:05,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2022-11-20 11:49:05,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:05,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2022-11-20 11:49:05,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 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 11:49:05,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 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 11:49:05,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 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 11:49:05,716 INFO L175 Difference]: Start difference. First operand has 160 places, 149 transitions, 310 flow. Second operand 3 states and 434 transitions. [2022-11-20 11:49:05,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 155 transitions, 368 flow [2022-11-20 11:49:05,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 155 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:49:05,722 INFO L231 Difference]: Finished difference. Result has 159 places, 148 transitions, 308 flow [2022-11-20 11:49:05,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=159, PETRI_TRANSITIONS=148} [2022-11-20 11:49:05,723 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, -5 predicate places. [2022-11-20 11:49:05,724 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 148 transitions, 308 flow [2022-11-20 11:49:05,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 11:49:05,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:05,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:05,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:49:05,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:05,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:05,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1161816870, now seen corresponding path program 1 times [2022-11-20 11:49:05,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:05,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757448911] [2022-11-20 11:49:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:05,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:06,713 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 11:49:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:06,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757448911] [2022-11-20 11:49:06,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757448911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:06,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:06,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:49:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215766822] [2022-11-20 11:49:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:06,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:49:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:49:06,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:06,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 157 [2022-11-20 11:49:06,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 148 transitions, 308 flow. Second operand has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 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 11:49:06,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:06,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 157 [2022-11-20 11:49:06,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:11,404 INFO L130 PetriNetUnfolder]: 7346/16825 cut-off events. [2022-11-20 11:49:11,404 INFO L131 PetriNetUnfolder]: For 580/580 co-relation queries the response was YES. [2022-11-20 11:49:11,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27856 conditions, 16825 events. 7346/16825 cut-off events. For 580/580 co-relation queries the response was YES. Maximal size of possible extension queue 836. Compared 166542 event pairs, 1680 based on Foata normal form. 0/16386 useless extension candidates. Maximal degree in co-relation 27770. Up to 4037 conditions per place. [2022-11-20 11:49:11,514 INFO L137 encePairwiseOnDemand]: 142/157 looper letters, 49 selfloop transitions, 11 changer transitions 116/275 dead transitions. [2022-11-20 11:49:11,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 275 transitions, 914 flow [2022-11-20 11:49:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:49:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:49:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1674 transitions. [2022-11-20 11:49:11,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8201861832435081 [2022-11-20 11:49:11,519 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1674 transitions. [2022-11-20 11:49:11,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1674 transitions. [2022-11-20 11:49:11,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:11,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1674 transitions. [2022-11-20 11:49:11,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.76923076923077) internal successors, (1674), 13 states have internal predecessors, (1674), 0 states have call successors, (0), 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 11:49:11,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 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 11:49:11,530 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 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 11:49:11,530 INFO L175 Difference]: Start difference. First operand has 159 places, 148 transitions, 308 flow. Second operand 13 states and 1674 transitions. [2022-11-20 11:49:11,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 275 transitions, 914 flow [2022-11-20 11:49:11,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 275 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:49:11,634 INFO L231 Difference]: Finished difference. Result has 181 places, 143 transitions, 426 flow [2022-11-20 11:49:11,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=426, PETRI_PLACES=181, PETRI_TRANSITIONS=143} [2022-11-20 11:49:11,635 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 17 predicate places. [2022-11-20 11:49:11,635 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 143 transitions, 426 flow [2022-11-20 11:49:11,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.28571428571429) internal successors, (835), 7 states have internal predecessors, (835), 0 states have call successors, (0), 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 11:49:11,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:11,636 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:11,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:49:11,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:11,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1244642886, now seen corresponding path program 1 times [2022-11-20 11:49:11,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:11,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954371105] [2022-11-20 11:49:11,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:11,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:12,050 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 11:49:12,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:12,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954371105] [2022-11-20 11:49:12,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954371105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:12,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:12,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:49:12,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599407240] [2022-11-20 11:49:12,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:12,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:49:12,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:49:12,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:49:12,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 157 [2022-11-20 11:49:12,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 143 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 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 11:49:12,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:12,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 157 [2022-11-20 11:49:12,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:14,129 INFO L130 PetriNetUnfolder]: 3199/6073 cut-off events. [2022-11-20 11:49:14,129 INFO L131 PetriNetUnfolder]: For 16569/20873 co-relation queries the response was YES. [2022-11-20 11:49:14,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23164 conditions, 6073 events. 3199/6073 cut-off events. For 16569/20873 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 45842 event pairs, 1477 based on Foata normal form. 150/6054 useless extension candidates. Maximal degree in co-relation 23077. Up to 2948 conditions per place. [2022-11-20 11:49:14,199 INFO L137 encePairwiseOnDemand]: 150/157 looper letters, 40 selfloop transitions, 4 changer transitions 70/227 dead transitions. [2022-11-20 11:49:14,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 227 transitions, 1274 flow [2022-11-20 11:49:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:49:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:49:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1250 transitions. [2022-11-20 11:49:14,204 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8846426043878273 [2022-11-20 11:49:14,205 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1250 transitions. [2022-11-20 11:49:14,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1250 transitions. [2022-11-20 11:49:14,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:14,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1250 transitions. [2022-11-20 11:49:14,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 138.88888888888889) internal successors, (1250), 9 states have internal predecessors, (1250), 0 states have call successors, (0), 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 11:49:14,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 157.0) internal successors, (1570), 10 states have internal predecessors, (1570), 0 states have call successors, (0), 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 11:49:14,221 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 157.0) internal successors, (1570), 10 states have internal predecessors, (1570), 0 states have call successors, (0), 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 11:49:14,221 INFO L175 Difference]: Start difference. First operand has 181 places, 143 transitions, 426 flow. Second operand 9 states and 1250 transitions. [2022-11-20 11:49:14,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 227 transitions, 1274 flow [2022-11-20 11:49:14,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 227 transitions, 1243 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-20 11:49:14,337 INFO L231 Difference]: Finished difference. Result has 169 places, 146 transitions, 482 flow [2022-11-20 11:49:14,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=482, PETRI_PLACES=169, PETRI_TRANSITIONS=146} [2022-11-20 11:49:14,339 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 5 predicate places. [2022-11-20 11:49:14,340 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 146 transitions, 482 flow [2022-11-20 11:49:14,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 0 states have call successors, (0), 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 11:49:14,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:14,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:14,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:49:14,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:14,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1638602907, now seen corresponding path program 1 times [2022-11-20 11:49:14,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:14,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603192778] [2022-11-20 11:49:14,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:14,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:15,329 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 11:49:15,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:15,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603192778] [2022-11-20 11:49:15,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603192778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:15,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:15,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:49:15,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388529423] [2022-11-20 11:49:15,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:15,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:49:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:15,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:49:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:15,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 157 [2022-11-20 11:49:15,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 146 transitions, 482 flow. Second operand has 7 states, 7 states have (on average 119.71428571428571) internal successors, (838), 7 states have internal predecessors, (838), 0 states have call successors, (0), 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 11:49:15,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:15,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 157 [2022-11-20 11:49:15,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:18,033 INFO L130 PetriNetUnfolder]: 3744/7622 cut-off events. [2022-11-20 11:49:18,034 INFO L131 PetriNetUnfolder]: For 21592/32466 co-relation queries the response was YES. [2022-11-20 11:49:18,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29038 conditions, 7622 events. 3744/7622 cut-off events. For 21592/32466 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 61118 event pairs, 590 based on Foata normal form. 151/7633 useless extension candidates. Maximal degree in co-relation 28935. Up to 3092 conditions per place. [2022-11-20 11:49:18,115 INFO L137 encePairwiseOnDemand]: 139/157 looper letters, 54 selfloop transitions, 23 changer transitions 88/264 dead transitions. [2022-11-20 11:49:18,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 264 transitions, 1761 flow [2022-11-20 11:49:18,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:49:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:49:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1645 transitions. [2022-11-20 11:49:18,127 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8059774620284175 [2022-11-20 11:49:18,127 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1645 transitions. [2022-11-20 11:49:18,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1645 transitions. [2022-11-20 11:49:18,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:18,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1645 transitions. [2022-11-20 11:49:18,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 126.53846153846153) internal successors, (1645), 13 states have internal predecessors, (1645), 0 states have call successors, (0), 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 11:49:18,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 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 11:49:18,138 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 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 11:49:18,139 INFO L175 Difference]: Start difference. First operand has 169 places, 146 transitions, 482 flow. Second operand 13 states and 1645 transitions. [2022-11-20 11:49:18,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 264 transitions, 1761 flow [2022-11-20 11:49:18,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 264 transitions, 1706 flow, removed 24 selfloop flow, removed 7 redundant places. [2022-11-20 11:49:18,211 INFO L231 Difference]: Finished difference. Result has 180 places, 162 transitions, 751 flow [2022-11-20 11:49:18,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=751, PETRI_PLACES=180, PETRI_TRANSITIONS=162} [2022-11-20 11:49:18,215 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 16 predicate places. [2022-11-20 11:49:18,215 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 162 transitions, 751 flow [2022-11-20 11:49:18,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.71428571428571) internal successors, (838), 7 states have internal predecessors, (838), 0 states have call successors, (0), 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 11:49:18,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:18,216 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:18,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:49:18,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:18,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1419226250, now seen corresponding path program 1 times [2022-11-20 11:49:18,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:18,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762724188] [2022-11-20 11:49:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:18,683 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 11:49:18,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:18,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762724188] [2022-11-20 11:49:18,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762724188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:18,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:18,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:49:18,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015959743] [2022-11-20 11:49:18,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:18,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:49:18,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:18,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:49:18,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:49:18,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 157 [2022-11-20 11:49:18,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 162 transitions, 751 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 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 11:49:18,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:18,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 157 [2022-11-20 11:49:18,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:24,468 INFO L130 PetriNetUnfolder]: 17865/28276 cut-off events. [2022-11-20 11:49:24,468 INFO L131 PetriNetUnfolder]: For 138303/153189 co-relation queries the response was YES. [2022-11-20 11:49:24,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108621 conditions, 28276 events. 17865/28276 cut-off events. For 138303/153189 co-relation queries the response was YES. Maximal size of possible extension queue 1689. Compared 222524 event pairs, 1449 based on Foata normal form. 563/27131 useless extension candidates. Maximal degree in co-relation 108518. Up to 9740 conditions per place. [2022-11-20 11:49:24,821 INFO L137 encePairwiseOnDemand]: 146/157 looper letters, 120 selfloop transitions, 14 changer transitions 87/342 dead transitions. [2022-11-20 11:49:24,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 342 transitions, 2721 flow [2022-11-20 11:49:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:49:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:49:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1384 transitions. [2022-11-20 11:49:24,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8815286624203822 [2022-11-20 11:49:24,826 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1384 transitions. [2022-11-20 11:49:24,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1384 transitions. [2022-11-20 11:49:24,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:24,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1384 transitions. [2022-11-20 11:49:24,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 138.4) internal successors, (1384), 10 states have internal predecessors, (1384), 0 states have call successors, (0), 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 11:49:24,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 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 11:49:24,836 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 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 11:49:24,836 INFO L175 Difference]: Start difference. First operand has 180 places, 162 transitions, 751 flow. Second operand 10 states and 1384 transitions. [2022-11-20 11:49:24,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 342 transitions, 2721 flow [2022-11-20 11:49:25,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 342 transitions, 2678 flow, removed 13 selfloop flow, removed 7 redundant places. [2022-11-20 11:49:25,232 INFO L231 Difference]: Finished difference. Result has 179 places, 174 transitions, 832 flow [2022-11-20 11:49:25,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=832, PETRI_PLACES=179, PETRI_TRANSITIONS=174} [2022-11-20 11:49:25,236 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 15 predicate places. [2022-11-20 11:49:25,236 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 174 transitions, 832 flow [2022-11-20 11:49:25,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 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 11:49:25,238 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:25,238 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:25,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:49:25,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:25,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:25,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1849527183, now seen corresponding path program 1 times [2022-11-20 11:49:25,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:25,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223770984] [2022-11-20 11:49:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:26,321 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 11:49:26,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:26,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223770984] [2022-11-20 11:49:26,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223770984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:26,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:26,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:49:26,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055260258] [2022-11-20 11:49:26,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:26,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:49:26,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:49:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:26,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 157 [2022-11-20 11:49:26,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 174 transitions, 832 flow. Second operand has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 0 states have call successors, (0), 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 11:49:26,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:26,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 157 [2022-11-20 11:49:26,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:29,757 INFO L130 PetriNetUnfolder]: 4776/13688 cut-off events. [2022-11-20 11:49:29,758 INFO L131 PetriNetUnfolder]: For 35028/54401 co-relation queries the response was YES. [2022-11-20 11:49:29,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47952 conditions, 13688 events. 4776/13688 cut-off events. For 35028/54401 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 156127 event pairs, 2053 based on Foata normal form. 406/13020 useless extension candidates. Maximal degree in co-relation 47836. Up to 3332 conditions per place. [2022-11-20 11:49:29,910 INFO L137 encePairwiseOnDemand]: 145/157 looper letters, 101 selfloop transitions, 26 changer transitions 0/238 dead transitions. [2022-11-20 11:49:29,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 238 transitions, 1654 flow [2022-11-20 11:49:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:49:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:49:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1262 transitions. [2022-11-20 11:49:29,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8038216560509555 [2022-11-20 11:49:29,915 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1262 transitions. [2022-11-20 11:49:29,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1262 transitions. [2022-11-20 11:49:29,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:29,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1262 transitions. [2022-11-20 11:49:29,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.2) internal successors, (1262), 10 states have internal predecessors, (1262), 0 states have call successors, (0), 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 11:49:29,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 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 11:49:29,923 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 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 11:49:29,924 INFO L175 Difference]: Start difference. First operand has 179 places, 174 transitions, 832 flow. Second operand 10 states and 1262 transitions. [2022-11-20 11:49:29,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 238 transitions, 1654 flow [2022-11-20 11:49:30,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 238 transitions, 1624 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-20 11:49:30,216 INFO L231 Difference]: Finished difference. Result has 191 places, 182 transitions, 990 flow [2022-11-20 11:49:30,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=990, PETRI_PLACES=191, PETRI_TRANSITIONS=182} [2022-11-20 11:49:30,217 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 27 predicate places. [2022-11-20 11:49:30,218 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 182 transitions, 990 flow [2022-11-20 11:49:30,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 0 states have call successors, (0), 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 11:49:30,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:30,219 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:30,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:49:30,219 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:30,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1828861361, now seen corresponding path program 1 times [2022-11-20 11:49:30,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:30,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960218622] [2022-11-20 11:49:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:30,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:30,666 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 11:49:30,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:30,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960218622] [2022-11-20 11:49:30,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960218622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:30,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:30,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:49:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873961901] [2022-11-20 11:49:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:30,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:49:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:49:30,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:30,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 157 [2022-11-20 11:49:30,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 182 transitions, 990 flow. Second operand has 7 states, 7 states have (on average 128.71428571428572) internal successors, (901), 7 states have internal predecessors, (901), 0 states have call successors, (0), 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 11:49:30,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:30,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 157 [2022-11-20 11:49:30,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:38,640 INFO L130 PetriNetUnfolder]: 22126/36798 cut-off events. [2022-11-20 11:49:38,640 INFO L131 PetriNetUnfolder]: For 197422/217990 co-relation queries the response was YES. [2022-11-20 11:49:38,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163413 conditions, 36798 events. 22126/36798 cut-off events. For 197422/217990 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 323179 event pairs, 928 based on Foata normal form. 1478/36701 useless extension candidates. Maximal degree in co-relation 163298. Up to 11863 conditions per place. [2022-11-20 11:49:38,947 INFO L137 encePairwiseOnDemand]: 146/157 looper letters, 175 selfloop transitions, 22 changer transitions 111/429 dead transitions. [2022-11-20 11:49:38,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 429 transitions, 3752 flow [2022-11-20 11:49:38,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:49:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 11:49:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1799 transitions. [2022-11-20 11:49:38,954 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8814306712395884 [2022-11-20 11:49:38,954 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1799 transitions. [2022-11-20 11:49:38,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1799 transitions. [2022-11-20 11:49:38,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:38,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1799 transitions. [2022-11-20 11:49:38,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 138.3846153846154) internal successors, (1799), 13 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 11:49:38,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 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 11:49:38,966 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 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 11:49:38,967 INFO L175 Difference]: Start difference. First operand has 191 places, 182 transitions, 990 flow. Second operand 13 states and 1799 transitions. [2022-11-20 11:49:38,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 429 transitions, 3752 flow [2022-11-20 11:49:39,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 429 transitions, 3698 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-11-20 11:49:39,975 INFO L231 Difference]: Finished difference. Result has 207 places, 181 transitions, 1003 flow [2022-11-20 11:49:39,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1003, PETRI_PLACES=207, PETRI_TRANSITIONS=181} [2022-11-20 11:49:39,976 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 43 predicate places. [2022-11-20 11:49:39,976 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 181 transitions, 1003 flow [2022-11-20 11:49:39,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.71428571428572) internal successors, (901), 7 states have internal predecessors, (901), 0 states have call successors, (0), 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 11:49:39,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:39,977 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:39,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:49:39,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash -178888397, now seen corresponding path program 1 times [2022-11-20 11:49:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:39,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196818176] [2022-11-20 11:49:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:40,817 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 11:49:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196818176] [2022-11-20 11:49:40,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196818176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:40,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:40,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:49:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114323676] [2022-11-20 11:49:40,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:49:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:49:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:49:40,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 157 [2022-11-20 11:49:40,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 181 transitions, 1003 flow. Second operand has 8 states, 8 states have (on average 128.75) internal successors, (1030), 8 states have internal predecessors, (1030), 0 states have call successors, (0), 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 11:49:40,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:40,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 157 [2022-11-20 11:49:40,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:46,229 INFO L130 PetriNetUnfolder]: 12076/22611 cut-off events. [2022-11-20 11:49:46,231 INFO L131 PetriNetUnfolder]: For 143313/152944 co-relation queries the response was YES. [2022-11-20 11:49:46,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108747 conditions, 22611 events. 12076/22611 cut-off events. For 143313/152944 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 214441 event pairs, 697 based on Foata normal form. 974/22873 useless extension candidates. Maximal degree in co-relation 108630. Up to 6376 conditions per place. [2022-11-20 11:49:46,363 INFO L137 encePairwiseOnDemand]: 146/157 looper letters, 158 selfloop transitions, 38 changer transitions 95/412 dead transitions. [2022-11-20 11:49:46,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 412 transitions, 3739 flow [2022-11-20 11:49:46,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:49:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 11:49:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1943 transitions. [2022-11-20 11:49:46,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8839854413102821 [2022-11-20 11:49:46,369 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1943 transitions. [2022-11-20 11:49:46,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1943 transitions. [2022-11-20 11:49:46,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:46,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1943 transitions. [2022-11-20 11:49:46,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.78571428571428) internal successors, (1943), 14 states have internal predecessors, (1943), 0 states have call successors, (0), 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 11:49:46,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 157.0) internal successors, (2355), 15 states have internal predecessors, (2355), 0 states have call successors, (0), 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 11:49:46,381 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 157.0) internal successors, (2355), 15 states have internal predecessors, (2355), 0 states have call successors, (0), 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 11:49:46,381 INFO L175 Difference]: Start difference. First operand has 207 places, 181 transitions, 1003 flow. Second operand 14 states and 1943 transitions. [2022-11-20 11:49:46,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 412 transitions, 3739 flow [2022-11-20 11:49:48,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 412 transitions, 3558 flow, removed 82 selfloop flow, removed 11 redundant places. [2022-11-20 11:49:48,889 INFO L231 Difference]: Finished difference. Result has 203 places, 199 transitions, 1216 flow [2022-11-20 11:49:48,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1216, PETRI_PLACES=203, PETRI_TRANSITIONS=199} [2022-11-20 11:49:48,890 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 39 predicate places. [2022-11-20 11:49:48,890 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 199 transitions, 1216 flow [2022-11-20 11:49:48,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 128.75) internal successors, (1030), 8 states have internal predecessors, (1030), 0 states have call successors, (0), 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 11:49:48,891 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:48,891 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:48,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:49:48,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1896971188, now seen corresponding path program 1 times [2022-11-20 11:49:48,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:48,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289349078] [2022-11-20 11:49:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:49,630 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 11:49:49,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:49,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289349078] [2022-11-20 11:49:49,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289349078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:49,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:49,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:49:49,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004154716] [2022-11-20 11:49:49,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:49,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:49:49,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:49,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:49:49,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:49:49,639 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 157 [2022-11-20 11:49:49,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 199 transitions, 1216 flow. Second operand has 9 states, 9 states have (on average 128.66666666666666) internal successors, (1158), 9 states have internal predecessors, (1158), 0 states have call successors, (0), 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 11:49:49,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:49,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 157 [2022-11-20 11:49:49,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:54,564 INFO L130 PetriNetUnfolder]: 11396/21772 cut-off events. [2022-11-20 11:49:54,564 INFO L131 PetriNetUnfolder]: For 131168/140018 co-relation queries the response was YES. [2022-11-20 11:49:54,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101708 conditions, 21772 events. 11396/21772 cut-off events. For 131168/140018 co-relation queries the response was YES. Maximal size of possible extension queue 1415. Compared 210988 event pairs, 687 based on Foata normal form. 671/21740 useless extension candidates. Maximal degree in co-relation 101593. Up to 6048 conditions per place. [2022-11-20 11:49:54,685 INFO L137 encePairwiseOnDemand]: 146/157 looper letters, 143 selfloop transitions, 43 changer transitions 72/377 dead transitions. [2022-11-20 11:49:54,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 377 transitions, 3301 flow [2022-11-20 11:49:54,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:49:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:49:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2300 transitions. [2022-11-20 11:49:54,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.86174597227426 [2022-11-20 11:49:54,691 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2300 transitions. [2022-11-20 11:49:54,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2300 transitions. [2022-11-20 11:49:54,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:49:54,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2300 transitions. [2022-11-20 11:49:54,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.2941176470588) internal successors, (2300), 17 states have internal predecessors, (2300), 0 states have call successors, (0), 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 11:49:54,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 157.0) internal successors, (2826), 18 states have internal predecessors, (2826), 0 states have call successors, (0), 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 11:49:54,705 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 157.0) internal successors, (2826), 18 states have internal predecessors, (2826), 0 states have call successors, (0), 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 11:49:54,705 INFO L175 Difference]: Start difference. First operand has 203 places, 199 transitions, 1216 flow. Second operand 17 states and 2300 transitions. [2022-11-20 11:49:54,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 377 transitions, 3301 flow [2022-11-20 11:49:57,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 377 transitions, 3004 flow, removed 115 selfloop flow, removed 11 redundant places. [2022-11-20 11:49:57,950 INFO L231 Difference]: Finished difference. Result has 215 places, 196 transitions, 1099 flow [2022-11-20 11:49:57,951 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=1015, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1099, PETRI_PLACES=215, PETRI_TRANSITIONS=196} [2022-11-20 11:49:57,952 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 51 predicate places. [2022-11-20 11:49:57,952 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 196 transitions, 1099 flow [2022-11-20 11:49:57,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 128.66666666666666) internal successors, (1158), 9 states have internal predecessors, (1158), 0 states have call successors, (0), 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 11:49:57,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:49:57,953 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:57,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:49:57,954 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:49:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash -759471450, now seen corresponding path program 1 times [2022-11-20 11:49:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:57,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154229447] [2022-11-20 11:49:57,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:57,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:58,467 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 11:49:58,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:58,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154229447] [2022-11-20 11:49:58,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154229447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:58,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:58,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:49:58,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119794621] [2022-11-20 11:49:58,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:58,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:49:58,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:58,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:49:58,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:58,472 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 157 [2022-11-20 11:49:58,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 196 transitions, 1099 flow. Second operand has 7 states, 7 states have (on average 131.28571428571428) internal successors, (919), 7 states have internal predecessors, (919), 0 states have call successors, (0), 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 11:49:58,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:49:58,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 157 [2022-11-20 11:49:58,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:49:59,968 INFO L130 PetriNetUnfolder]: 2079/8356 cut-off events. [2022-11-20 11:49:59,968 INFO L131 PetriNetUnfolder]: For 22538/23644 co-relation queries the response was YES. [2022-11-20 11:50:00,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29134 conditions, 8356 events. 2079/8356 cut-off events. For 22538/23644 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 107883 event pairs, 166 based on Foata normal form. 1/7867 useless extension candidates. Maximal degree in co-relation 29042. Up to 1031 conditions per place. [2022-11-20 11:50:00,056 INFO L137 encePairwiseOnDemand]: 151/157 looper letters, 36 selfloop transitions, 1 changer transitions 29/225 dead transitions. [2022-11-20 11:50:00,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 225 transitions, 1439 flow [2022-11-20 11:50:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:50:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 11:50:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 943 transitions. [2022-11-20 11:50:00,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8580527752502275 [2022-11-20 11:50:00,059 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 943 transitions. [2022-11-20 11:50:00,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 943 transitions. [2022-11-20 11:50:00,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:00,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 943 transitions. [2022-11-20 11:50:00,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.71428571428572) internal successors, (943), 7 states have internal predecessors, (943), 0 states have call successors, (0), 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 11:50:00,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 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 11:50:00,065 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 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 11:50:00,066 INFO L175 Difference]: Start difference. First operand has 215 places, 196 transitions, 1099 flow. Second operand 7 states and 943 transitions. [2022-11-20 11:50:00,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 225 transitions, 1439 flow [2022-11-20 11:50:00,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 225 transitions, 1180 flow, removed 80 selfloop flow, removed 20 redundant places. [2022-11-20 11:50:00,686 INFO L231 Difference]: Finished difference. Result has 203 places, 188 transitions, 841 flow [2022-11-20 11:50:00,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=841, PETRI_PLACES=203, PETRI_TRANSITIONS=188} [2022-11-20 11:50:00,687 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 39 predicate places. [2022-11-20 11:50:00,687 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 188 transitions, 841 flow [2022-11-20 11:50:00,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 131.28571428571428) internal successors, (919), 7 states have internal predecessors, (919), 0 states have call successors, (0), 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 11:50:00,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:00,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:00,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:50:00,688 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:50:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1213685556, now seen corresponding path program 2 times [2022-11-20 11:50:00,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:00,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906843863] [2022-11-20 11:50:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:00,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:04,137 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 11:50:04,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:04,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906843863] [2022-11-20 11:50:04,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906843863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:04,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:04,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-20 11:50:04,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871044330] [2022-11-20 11:50:04,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:04,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:50:04,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:04,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:50:04,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:50:04,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 157 [2022-11-20 11:50:04,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 188 transitions, 841 flow. Second operand has 16 states, 16 states have (on average 122.875) internal successors, (1966), 16 states have internal predecessors, (1966), 0 states have call successors, (0), 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 11:50:04,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:04,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 157 [2022-11-20 11:50:04,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:05,785 INFO L130 PetriNetUnfolder]: 1481/6232 cut-off events. [2022-11-20 11:50:05,785 INFO L131 PetriNetUnfolder]: For 6987/7238 co-relation queries the response was YES. [2022-11-20 11:50:05,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16110 conditions, 6232 events. 1481/6232 cut-off events. For 6987/7238 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 76818 event pairs, 80 based on Foata normal form. 2/5825 useless extension candidates. Maximal degree in co-relation 16079. Up to 639 conditions per place. [2022-11-20 11:50:05,823 INFO L137 encePairwiseOnDemand]: 143/157 looper letters, 45 selfloop transitions, 16 changer transitions 12/225 dead transitions. [2022-11-20 11:50:05,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 225 transitions, 1157 flow [2022-11-20 11:50:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:50:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 11:50:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1760 transitions. [2022-11-20 11:50:05,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8007279344858963 [2022-11-20 11:50:05,827 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1760 transitions. [2022-11-20 11:50:05,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1760 transitions. [2022-11-20 11:50:05,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:05,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1760 transitions. [2022-11-20 11:50:05,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 125.71428571428571) internal successors, (1760), 14 states have internal predecessors, (1760), 0 states have call successors, (0), 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 11:50:05,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 157.0) internal successors, (2355), 15 states have internal predecessors, (2355), 0 states have call successors, (0), 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 11:50:05,838 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 157.0) internal successors, (2355), 15 states have internal predecessors, (2355), 0 states have call successors, (0), 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 11:50:05,838 INFO L175 Difference]: Start difference. First operand has 203 places, 188 transitions, 841 flow. Second operand 14 states and 1760 transitions. [2022-11-20 11:50:05,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 225 transitions, 1157 flow [2022-11-20 11:50:06,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 225 transitions, 1131 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-20 11:50:06,063 INFO L231 Difference]: Finished difference. Result has 213 places, 194 transitions, 915 flow [2022-11-20 11:50:06,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=915, PETRI_PLACES=213, PETRI_TRANSITIONS=194} [2022-11-20 11:50:06,064 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 49 predicate places. [2022-11-20 11:50:06,064 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 194 transitions, 915 flow [2022-11-20 11:50:06,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 122.875) internal successors, (1966), 16 states have internal predecessors, (1966), 0 states have call successors, (0), 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 11:50:06,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:06,065 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:06,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:50:06,066 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:50:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:06,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1761493084, now seen corresponding path program 3 times [2022-11-20 11:50:06,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:06,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681689054] [2022-11-20 11:50:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:06,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:08,830 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 11:50:08,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:08,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681689054] [2022-11-20 11:50:08,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681689054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:08,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:08,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-20 11:50:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111074393] [2022-11-20 11:50:08,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:08,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 11:50:08,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:08,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 11:50:08,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:50:08,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 157 [2022-11-20 11:50:08,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 194 transitions, 915 flow. Second operand has 16 states, 16 states have (on average 121.0) internal successors, (1936), 16 states have internal predecessors, (1936), 0 states have call successors, (0), 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 11:50:08,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:50:08,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 157 [2022-11-20 11:50:08,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:50:10,484 INFO L130 PetriNetUnfolder]: 1707/6578 cut-off events. [2022-11-20 11:50:10,484 INFO L131 PetriNetUnfolder]: For 8553/8918 co-relation queries the response was YES. [2022-11-20 11:50:10,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17864 conditions, 6578 events. 1707/6578 cut-off events. For 8553/8918 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 80139 event pairs, 155 based on Foata normal form. 1/6148 useless extension candidates. Maximal degree in co-relation 17831. Up to 638 conditions per place. [2022-11-20 11:50:10,545 INFO L137 encePairwiseOnDemand]: 141/157 looper letters, 37 selfloop transitions, 15 changer transitions 28/230 dead transitions. [2022-11-20 11:50:10,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 230 transitions, 1321 flow [2022-11-20 11:50:10,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:50:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:50:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2085 transitions. [2022-11-20 11:50:10,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7811914574747096 [2022-11-20 11:50:10,550 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2085 transitions. [2022-11-20 11:50:10,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2085 transitions. [2022-11-20 11:50:10,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:50:10,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2085 transitions. [2022-11-20 11:50:10,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 122.6470588235294) internal successors, (2085), 17 states have internal predecessors, (2085), 0 states have call successors, (0), 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 11:50:10,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 157.0) internal successors, (2826), 18 states have internal predecessors, (2826), 0 states have call successors, (0), 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 11:50:10,563 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 157.0) internal successors, (2826), 18 states have internal predecessors, (2826), 0 states have call successors, (0), 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 11:50:10,563 INFO L175 Difference]: Start difference. First operand has 213 places, 194 transitions, 915 flow. Second operand 17 states and 2085 transitions. [2022-11-20 11:50:10,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 230 transitions, 1321 flow [2022-11-20 11:50:10,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 230 transitions, 1281 flow, removed 5 selfloop flow, removed 9 redundant places. [2022-11-20 11:50:10,895 INFO L231 Difference]: Finished difference. Result has 227 places, 200 transitions, 999 flow [2022-11-20 11:50:10,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=999, PETRI_PLACES=227, PETRI_TRANSITIONS=200} [2022-11-20 11:50:10,896 INFO L288 CegarLoopForPetriNet]: 164 programPoint places, 63 predicate places. [2022-11-20 11:50:10,896 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 200 transitions, 999 flow [2022-11-20 11:50:10,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 121.0) internal successors, (1936), 16 states have internal predecessors, (1936), 0 states have call successors, (0), 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 11:50:10,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:50:10,897 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:10,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:50:10,897 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-11-20 11:50:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1368994310, now seen corresponding path program 4 times [2022-11-20 11:50:10,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:10,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246120368] [2022-11-20 11:50:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:10,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat