./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a --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 0a03a5fc32da65217c1f578a6fea0c2c0e07a09fd6b8159429f8d1aa4c1c45a8 --- 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-b5237d8 [2022-11-21 09:16:06,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:16:06,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:16:06,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:16:06,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:16:06,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:16:06,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:16:06,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:16:06,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:16:06,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:16:06,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:16:06,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:16:06,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:16:06,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:16:06,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:16:06,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:16:06,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:16:06,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:16:06,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:16:06,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:16:06,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:16:06,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:16:06,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:16:06,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:16:06,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:16:06,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:16:06,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:16:06,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:16:06,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:16:06,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:16:06,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:16:06,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:16:06,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:16:06,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:16:06,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:16:06,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:16:06,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:16:06,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:16:06,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:16:06,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:16:06,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:16:06,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 09:16:06,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:16:06,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:16:06,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:16:06,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:16:06,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:16:06,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:16:06,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:16:06,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:16:06,915 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:16:06,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:16:06,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:16:06,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:16:06,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:16:06,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:16:06,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:16:06,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:16:06,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:16:06,918 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:16:06,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:16:06,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:16:06,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:16:06,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:16:06,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:16:06,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:16:06,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:16:06,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:16:06,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:16:06,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:16:06,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:16:06,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:16:06,922 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:16:06,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:16:06,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:16:06,923 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_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a03a5fc32da65217c1f578a6fea0c2c0e07a09fd6b8159429f8d1aa4c1c45a8 [2022-11-21 09:16:07,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:16:07,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:16:07,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:16:07,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:16:07,251 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:16:07,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-21 09:16:10,695 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:16:11,140 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:16:11,145 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-21 09:16:11,163 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/data/aa37ac7ca/e7d6de1d82dc4a9e8ed73c76537e907a/FLAG41cd65a39 [2022-11-21 09:16:11,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/data/aa37ac7ca/e7d6de1d82dc4a9e8ed73c76537e907a [2022-11-21 09:16:11,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:16:11,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:16:11,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:16:11,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:16:11,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:16:11,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:11,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbfd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11, skipping insertion in model container [2022-11-21 09:16:11,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:11,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:16:11,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:16:11,531 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_eb4134b4-485f-48e8-922f-79e97d75575b/sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-21 09:16:11,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:16:11,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:16:11,816 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_eb4134b4-485f-48e8-922f-79e97d75575b/sv-benchmarks/c/pthread-wmm/mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-21 09:16:11,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:16:11,912 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:16:11,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11 WrapperNode [2022-11-21 09:16:11,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:16:11,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:16:11,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:16:11,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:16:11,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:11,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:11,989 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-11-21 09:16:11,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:16:11,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:16:11,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:16:11,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:16:12,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:16:12,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:16:12,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:16:12,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:16:12,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (1/1) ... [2022-11-21 09:16:12,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:16:12,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:16:12,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:16:12,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:16:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:16:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 09:16:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:16:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:16:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:16:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 09:16:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 09:16:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 09:16:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 09:16:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 09:16:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 09:16:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:16:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 09:16:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:16:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:16:12,124 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 09:16:12,338 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:16:12,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:16:12,719 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:16:12,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:16:12,993 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 09:16:12,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:16:12 BoogieIcfgContainer [2022-11-21 09:16:12,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:16:13,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:16:13,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:16:13,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:16:13,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:16:11" (1/3) ... [2022-11-21 09:16:13,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f82af66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:16:13, skipping insertion in model container [2022-11-21 09:16:13,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:16:11" (2/3) ... [2022-11-21 09:16:13,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f82af66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:16:13, skipping insertion in model container [2022-11-21 09:16:13,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:16:12" (3/3) ... [2022-11-21 09:16:13,013 INFO L112 eAbstractionObserver]: Analyzing ICFG mix056_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-21 09:16:13,024 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:16:13,037 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:16:13,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 09:16:13,038 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:16:13,130 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 09:16:13,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 241 flow [2022-11-21 09:16:13,283 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2022-11-21 09:16:13,283 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:16:13,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-11-21 09:16:13,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 113 transitions, 241 flow [2022-11-21 09:16:13,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 110 transitions, 229 flow [2022-11-21 09:16:13,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:16:13,314 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;@2d7639f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:16:13,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 09:16:13,336 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2022-11-21 09:16:13,337 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:16:13,337 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:13,338 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] [2022-11-21 09:16:13,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:13,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:13,345 INFO L85 PathProgramCache]: Analyzing trace with hash 611219119, now seen corresponding path program 1 times [2022-11-21 09:16:13,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:13,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427434938] [2022-11-21 09:16:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:13,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:14,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:14,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427434938] [2022-11-21 09:16:14,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427434938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:14,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:14,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:16:14,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127248213] [2022-11-21 09:16:14,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:14,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:16:14,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:14,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:16:14,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:16:14,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 113 [2022-11-21 09:16:14,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2022-11-21 09:16:14,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:14,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 113 [2022-11-21 09:16:14,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:14,555 INFO L130 PetriNetUnfolder]: 17/242 cut-off events. [2022-11-21 09:16:14,556 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 09:16:14,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 242 events. 17/242 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 747 event pairs, 7 based on Foata normal form. 8/238 useless extension candidates. Maximal degree in co-relation 243. Up to 27 conditions per place. [2022-11-21 09:16:14,562 INFO L137 encePairwiseOnDemand]: 108/113 looper letters, 10 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2022-11-21 09:16:14,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 109 transitions, 251 flow [2022-11-21 09:16:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:16:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 09:16:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-21 09:16:14,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9351032448377581 [2022-11-21 09:16:14,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-21 09:16:14,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-21 09:16:14,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:14,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-21 09:16:14,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2022-11-21 09:16:14,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2022-11-21 09:16:14,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2022-11-21 09:16:14,614 INFO L175 Difference]: Start difference. First operand has 118 places, 110 transitions, 229 flow. Second operand 3 states and 317 transitions. [2022-11-21 09:16:14,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 109 transitions, 251 flow [2022-11-21 09:16:14,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 109 transitions, 248 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 09:16:14,626 INFO L231 Difference]: Finished difference. Result has 115 places, 106 transitions, 222 flow [2022-11-21 09:16:14,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=115, PETRI_TRANSITIONS=106} [2022-11-21 09:16:14,634 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2022-11-21 09:16:14,635 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 222 flow [2022-11-21 09:16:14,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2022-11-21 09:16:14,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:14,636 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] [2022-11-21 09:16:14,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:16:14,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:14,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:14,638 INFO L85 PathProgramCache]: Analyzing trace with hash -403240246, now seen corresponding path program 1 times [2022-11-21 09:16:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:14,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717800616] [2022-11-21 09:16:14,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:14,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:15,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717800616] [2022-11-21 09:16:15,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717800616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:15,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:15,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:16:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829767510] [2022-11-21 09:16:15,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:15,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:16:15,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:15,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:16:15,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:16:15,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-11-21 09:16:15,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 84.71428571428571) internal successors, (593), 7 states have internal predecessors, (593), 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) [2022-11-21 09:16:15,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:15,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-11-21 09:16:15,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:17,318 INFO L130 PetriNetUnfolder]: 951/2919 cut-off events. [2022-11-21 09:16:17,318 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2022-11-21 09:16:17,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4633 conditions, 2919 events. 951/2919 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 24661 event pairs, 99 based on Foata normal form. 0/2834 useless extension candidates. Maximal degree in co-relation 4574. Up to 679 conditions per place. [2022-11-21 09:16:17,346 INFO L137 encePairwiseOnDemand]: 101/113 looper letters, 36 selfloop transitions, 10 changer transitions 81/195 dead transitions. [2022-11-21 09:16:17,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 195 transitions, 660 flow [2022-11-21 09:16:17,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:16:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 09:16:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1185 transitions. [2022-11-21 09:16:17,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8066712049012934 [2022-11-21 09:16:17,352 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1185 transitions. [2022-11-21 09:16:17,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1185 transitions. [2022-11-21 09:16:17,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:17,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1185 transitions. [2022-11-21 09:16:17,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.15384615384616) internal successors, (1185), 13 states have internal predecessors, (1185), 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) [2022-11-21 09:16:17,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:17,363 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:17,363 INFO L175 Difference]: Start difference. First operand has 115 places, 106 transitions, 222 flow. Second operand 13 states and 1185 transitions. [2022-11-21 09:16:17,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 195 transitions, 660 flow [2022-11-21 09:16:17,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 195 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 09:16:17,371 INFO L231 Difference]: Finished difference. Result has 136 places, 102 transitions, 299 flow [2022-11-21 09:16:17,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=299, PETRI_PLACES=136, PETRI_TRANSITIONS=102} [2022-11-21 09:16:17,373 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 18 predicate places. [2022-11-21 09:16:17,373 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 102 transitions, 299 flow [2022-11-21 09:16:17,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.71428571428571) internal successors, (593), 7 states have internal predecessors, (593), 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) [2022-11-21 09:16:17,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:17,375 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] [2022-11-21 09:16:17,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:16:17,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:17,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:17,378 INFO L85 PathProgramCache]: Analyzing trace with hash -837075287, now seen corresponding path program 1 times [2022-11-21 09:16:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:17,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098289229] [2022-11-21 09:16:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:17,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:18,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:18,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098289229] [2022-11-21 09:16:18,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098289229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:18,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:18,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 09:16:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163402017] [2022-11-21 09:16:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:18,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:16:18,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:18,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:16:18,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:16:18,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-21 09:16:18,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 102 transitions, 299 flow. Second operand has 10 states, 10 states have (on average 91.4) internal successors, (914), 10 states have internal predecessors, (914), 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) [2022-11-21 09:16:18,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:18,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-21 09:16:18,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:19,006 INFO L130 PetriNetUnfolder]: 483/1227 cut-off events. [2022-11-21 09:16:19,006 INFO L131 PetriNetUnfolder]: For 2506/3070 co-relation queries the response was YES. [2022-11-21 09:16:19,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4026 conditions, 1227 events. 483/1227 cut-off events. For 2506/3070 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8245 event pairs, 150 based on Foata normal form. 37/1208 useless extension candidates. Maximal degree in co-relation 3961. Up to 516 conditions per place. [2022-11-21 09:16:19,019 INFO L137 encePairwiseOnDemand]: 101/113 looper letters, 24 selfloop transitions, 26 changer transitions 33/163 dead transitions. [2022-11-21 09:16:19,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 163 transitions, 830 flow [2022-11-21 09:16:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:16:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 09:16:19,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1413 transitions. [2022-11-21 09:16:19,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8336283185840708 [2022-11-21 09:16:19,025 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1413 transitions. [2022-11-21 09:16:19,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1413 transitions. [2022-11-21 09:16:19,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:19,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1413 transitions. [2022-11-21 09:16:19,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 94.2) internal successors, (1413), 15 states have internal predecessors, (1413), 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) [2022-11-21 09:16:19,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 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) [2022-11-21 09:16:19,038 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 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) [2022-11-21 09:16:19,038 INFO L175 Difference]: Start difference. First operand has 136 places, 102 transitions, 299 flow. Second operand 15 states and 1413 transitions. [2022-11-21 09:16:19,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 163 transitions, 830 flow [2022-11-21 09:16:19,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 163 transitions, 794 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-11-21 09:16:19,064 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 551 flow [2022-11-21 09:16:19,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=551, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2022-11-21 09:16:19,066 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 14 predicate places. [2022-11-21 09:16:19,066 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 551 flow [2022-11-21 09:16:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 91.4) internal successors, (914), 10 states have internal predecessors, (914), 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) [2022-11-21 09:16:19,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:19,067 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] [2022-11-21 09:16:19,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:16:19,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash -233978687, now seen corresponding path program 1 times [2022-11-21 09:16:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:19,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32704450] [2022-11-21 09:16:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:19,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:19,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:19,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32704450] [2022-11-21 09:16:19,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32704450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:19,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:19,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:16:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907741352] [2022-11-21 09:16:19,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:19,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:16:19,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:19,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:16:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:16:19,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2022-11-21 09:16:19,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 551 flow. Second operand has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:16:19,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:19,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2022-11-21 09:16:19,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:20,268 INFO L130 PetriNetUnfolder]: 450/1264 cut-off events. [2022-11-21 09:16:20,269 INFO L131 PetriNetUnfolder]: For 3511/4567 co-relation queries the response was YES. [2022-11-21 09:16:20,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4541 conditions, 1264 events. 450/1264 cut-off events. For 3511/4567 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8978 event pairs, 79 based on Foata normal form. 26/1246 useless extension candidates. Maximal degree in co-relation 4469. Up to 517 conditions per place. [2022-11-21 09:16:20,284 INFO L137 encePairwiseOnDemand]: 104/113 looper letters, 43 selfloop transitions, 15 changer transitions 40/180 dead transitions. [2022-11-21 09:16:20,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 180 transitions, 1229 flow [2022-11-21 09:16:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:16:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 09:16:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1252 transitions. [2022-11-21 09:16:20,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.852280462899932 [2022-11-21 09:16:20,289 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1252 transitions. [2022-11-21 09:16:20,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1252 transitions. [2022-11-21 09:16:20,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:20,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1252 transitions. [2022-11-21 09:16:20,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 96.3076923076923) internal successors, (1252), 13 states have internal predecessors, (1252), 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) [2022-11-21 09:16:20,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:20,306 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:20,306 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 551 flow. Second operand 13 states and 1252 transitions. [2022-11-21 09:16:20,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 180 transitions, 1229 flow [2022-11-21 09:16:20,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 180 transitions, 1193 flow, removed 16 selfloop flow, removed 2 redundant places. [2022-11-21 09:16:20,324 INFO L231 Difference]: Finished difference. Result has 152 places, 130 transitions, 645 flow [2022-11-21 09:16:20,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=645, PETRI_PLACES=152, PETRI_TRANSITIONS=130} [2022-11-21 09:16:20,326 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 34 predicate places. [2022-11-21 09:16:20,331 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 130 transitions, 645 flow [2022-11-21 09:16:20,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:16:20,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:20,335 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] [2022-11-21 09:16:20,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:16:20,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash 431066165, now seen corresponding path program 2 times [2022-11-21 09:16:20,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:20,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838207075] [2022-11-21 09:16:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:20,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:21,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:21,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838207075] [2022-11-21 09:16:21,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838207075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:21,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:21,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:16:21,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314760361] [2022-11-21 09:16:21,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:21,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:16:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:16:21,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:16:21,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 113 [2022-11-21 09:16:21,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 130 transitions, 645 flow. Second operand has 9 states, 9 states have (on average 87.88888888888889) internal successors, (791), 9 states have internal predecessors, (791), 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) [2022-11-21 09:16:21,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:21,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 113 [2022-11-21 09:16:21,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:22,238 INFO L130 PetriNetUnfolder]: 632/1637 cut-off events. [2022-11-21 09:16:22,238 INFO L131 PetriNetUnfolder]: For 7687/12133 co-relation queries the response was YES. [2022-11-21 09:16:22,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6832 conditions, 1637 events. 632/1637 cut-off events. For 7687/12133 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11630 event pairs, 89 based on Foata normal form. 41/1638 useless extension candidates. Maximal degree in co-relation 6747. Up to 702 conditions per place. [2022-11-21 09:16:22,258 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 50 selfloop transitions, 22 changer transitions 101/245 dead transitions. [2022-11-21 09:16:22,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 245 transitions, 2122 flow [2022-11-21 09:16:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 09:16:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 09:16:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1648 transitions. [2022-11-21 09:16:22,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8102261553588987 [2022-11-21 09:16:22,264 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1648 transitions. [2022-11-21 09:16:22,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1648 transitions. [2022-11-21 09:16:22,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:22,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1648 transitions. [2022-11-21 09:16:22,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 91.55555555555556) internal successors, (1648), 18 states have internal predecessors, (1648), 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) [2022-11-21 09:16:22,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 113.0) internal successors, (2147), 19 states have internal predecessors, (2147), 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) [2022-11-21 09:16:22,276 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 113.0) internal successors, (2147), 19 states have internal predecessors, (2147), 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) [2022-11-21 09:16:22,276 INFO L175 Difference]: Start difference. First operand has 152 places, 130 transitions, 645 flow. Second operand 18 states and 1648 transitions. [2022-11-21 09:16:22,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 245 transitions, 2122 flow [2022-11-21 09:16:22,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 245 transitions, 1993 flow, removed 47 selfloop flow, removed 7 redundant places. [2022-11-21 09:16:22,313 INFO L231 Difference]: Finished difference. Result has 168 places, 128 transitions, 730 flow [2022-11-21 09:16:22,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=730, PETRI_PLACES=168, PETRI_TRANSITIONS=128} [2022-11-21 09:16:22,315 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 50 predicate places. [2022-11-21 09:16:22,315 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 128 transitions, 730 flow [2022-11-21 09:16:22,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.88888888888889) internal successors, (791), 9 states have internal predecessors, (791), 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) [2022-11-21 09:16:22,316 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:22,316 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] [2022-11-21 09:16:22,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:16:22,316 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:22,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:22,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1270010232, now seen corresponding path program 1 times [2022-11-21 09:16:22,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:22,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813034889] [2022-11-21 09:16:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:22,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:23,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:23,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:23,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813034889] [2022-11-21 09:16:23,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813034889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:23,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:23,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 09:16:23,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389240202] [2022-11-21 09:16:23,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:23,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:16:23,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:16:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:16:23,888 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 113 [2022-11-21 09:16:23,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 128 transitions, 730 flow. Second operand has 14 states, 14 states have (on average 88.35714285714286) internal successors, (1237), 14 states have internal predecessors, (1237), 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) [2022-11-21 09:16:23,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:23,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 113 [2022-11-21 09:16:23,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:24,634 INFO L130 PetriNetUnfolder]: 362/1046 cut-off events. [2022-11-21 09:16:24,634 INFO L131 PetriNetUnfolder]: For 10179/12092 co-relation queries the response was YES. [2022-11-21 09:16:24,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5081 conditions, 1046 events. 362/1046 cut-off events. For 10179/12092 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6680 event pairs, 89 based on Foata normal form. 24/1030 useless extension candidates. Maximal degree in co-relation 4983. Up to 381 conditions per place. [2022-11-21 09:16:24,650 INFO L137 encePairwiseOnDemand]: 101/113 looper letters, 34 selfloop transitions, 18 changer transitions 19/152 dead transitions. [2022-11-21 09:16:24,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 152 transitions, 1166 flow [2022-11-21 09:16:24,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:16:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 09:16:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1347 transitions. [2022-11-21 09:16:24,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7946902654867256 [2022-11-21 09:16:24,654 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1347 transitions. [2022-11-21 09:16:24,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1347 transitions. [2022-11-21 09:16:24,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:24,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1347 transitions. [2022-11-21 09:16:24,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 89.8) internal successors, (1347), 15 states have internal predecessors, (1347), 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) [2022-11-21 09:16:24,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 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) [2022-11-21 09:16:24,662 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 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) [2022-11-21 09:16:24,662 INFO L175 Difference]: Start difference. First operand has 168 places, 128 transitions, 730 flow. Second operand 15 states and 1347 transitions. [2022-11-21 09:16:24,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 152 transitions, 1166 flow [2022-11-21 09:16:24,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 152 transitions, 1021 flow, removed 63 selfloop flow, removed 13 redundant places. [2022-11-21 09:16:24,706 INFO L231 Difference]: Finished difference. Result has 155 places, 128 transitions, 702 flow [2022-11-21 09:16:24,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=702, PETRI_PLACES=155, PETRI_TRANSITIONS=128} [2022-11-21 09:16:24,710 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 37 predicate places. [2022-11-21 09:16:24,710 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 128 transitions, 702 flow [2022-11-21 09:16:24,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 88.35714285714286) internal successors, (1237), 14 states have internal predecessors, (1237), 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) [2022-11-21 09:16:24,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:24,711 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] [2022-11-21 09:16:24,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:16:24,711 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:24,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1888379655, now seen corresponding path program 1 times [2022-11-21 09:16:24,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:24,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078129515] [2022-11-21 09:16:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:24,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:26,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:26,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078129515] [2022-11-21 09:16:26,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078129515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:26,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:26,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 09:16:26,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611081159] [2022-11-21 09:16:26,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:26,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:16:26,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:26,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:16:26,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:16:26,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-11-21 09:16:26,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 128 transitions, 702 flow. Second operand has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2022-11-21 09:16:26,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:26,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-11-21 09:16:26,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:28,000 INFO L130 PetriNetUnfolder]: 604/1517 cut-off events. [2022-11-21 09:16:28,000 INFO L131 PetriNetUnfolder]: For 11818/17125 co-relation queries the response was YES. [2022-11-21 09:16:28,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7251 conditions, 1517 events. 604/1517 cut-off events. For 11818/17125 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9972 event pairs, 47 based on Foata normal form. 50/1522 useless extension candidates. Maximal degree in co-relation 7150. Up to 499 conditions per place. [2022-11-21 09:16:28,020 INFO L137 encePairwiseOnDemand]: 96/113 looper letters, 49 selfloop transitions, 38 changer transitions 68/223 dead transitions. [2022-11-21 09:16:28,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 223 transitions, 2011 flow [2022-11-21 09:16:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 09:16:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 09:16:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1594 transitions. [2022-11-21 09:16:28,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.783677482792527 [2022-11-21 09:16:28,026 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1594 transitions. [2022-11-21 09:16:28,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1594 transitions. [2022-11-21 09:16:28,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:28,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1594 transitions. [2022-11-21 09:16:28,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.55555555555556) internal successors, (1594), 18 states have internal predecessors, (1594), 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) [2022-11-21 09:16:28,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 113.0) internal successors, (2147), 19 states have internal predecessors, (2147), 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) [2022-11-21 09:16:28,038 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 113.0) internal successors, (2147), 19 states have internal predecessors, (2147), 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) [2022-11-21 09:16:28,038 INFO L175 Difference]: Start difference. First operand has 155 places, 128 transitions, 702 flow. Second operand 18 states and 1594 transitions. [2022-11-21 09:16:28,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 223 transitions, 2011 flow [2022-11-21 09:16:28,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 223 transitions, 1912 flow, removed 33 selfloop flow, removed 15 redundant places. [2022-11-21 09:16:28,078 INFO L231 Difference]: Finished difference. Result has 163 places, 139 transitions, 950 flow [2022-11-21 09:16:28,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=950, PETRI_PLACES=163, PETRI_TRANSITIONS=139} [2022-11-21 09:16:28,079 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 45 predicate places. [2022-11-21 09:16:28,079 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 139 transitions, 950 flow [2022-11-21 09:16:28,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 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) [2022-11-21 09:16:28,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:28,080 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] [2022-11-21 09:16:28,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:16:28,081 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:28,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:28,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1236387191, now seen corresponding path program 2 times [2022-11-21 09:16:28,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:28,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994710047] [2022-11-21 09:16:28,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:28,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:29,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:29,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994710047] [2022-11-21 09:16:29,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994710047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:29,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:29,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 09:16:29,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011336274] [2022-11-21 09:16:29,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:29,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 09:16:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 09:16:29,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-21 09:16:29,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 113 [2022-11-21 09:16:29,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 139 transitions, 950 flow. Second operand has 11 states, 11 states have (on average 88.63636363636364) internal successors, (975), 11 states have internal predecessors, (975), 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) [2022-11-21 09:16:29,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:29,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 113 [2022-11-21 09:16:29,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:29,622 INFO L130 PetriNetUnfolder]: 415/1151 cut-off events. [2022-11-21 09:16:29,623 INFO L131 PetriNetUnfolder]: For 16718/21101 co-relation queries the response was YES. [2022-11-21 09:16:29,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6629 conditions, 1151 events. 415/1151 cut-off events. For 16718/21101 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7459 event pairs, 110 based on Foata normal form. 55/1153 useless extension candidates. Maximal degree in co-relation 6526. Up to 407 conditions per place. [2022-11-21 09:16:29,639 INFO L137 encePairwiseOnDemand]: 101/113 looper letters, 49 selfloop transitions, 16 changer transitions 31/182 dead transitions. [2022-11-21 09:16:29,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 182 transitions, 1742 flow [2022-11-21 09:16:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:16:29,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 09:16:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1183 transitions. [2022-11-21 09:16:29,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8053097345132744 [2022-11-21 09:16:29,646 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1183 transitions. [2022-11-21 09:16:29,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1183 transitions. [2022-11-21 09:16:29,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:29,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1183 transitions. [2022-11-21 09:16:29,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 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) [2022-11-21 09:16:29,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:29,655 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:29,656 INFO L175 Difference]: Start difference. First operand has 163 places, 139 transitions, 950 flow. Second operand 13 states and 1183 transitions. [2022-11-21 09:16:29,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 182 transitions, 1742 flow [2022-11-21 09:16:29,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 182 transitions, 1539 flow, removed 86 selfloop flow, removed 11 redundant places. [2022-11-21 09:16:29,696 INFO L231 Difference]: Finished difference. Result has 163 places, 150 transitions, 1077 flow [2022-11-21 09:16:29,697 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1077, PETRI_PLACES=163, PETRI_TRANSITIONS=150} [2022-11-21 09:16:29,701 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 45 predicate places. [2022-11-21 09:16:29,701 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 150 transitions, 1077 flow [2022-11-21 09:16:29,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 88.63636363636364) internal successors, (975), 11 states have internal predecessors, (975), 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) [2022-11-21 09:16:29,702 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:29,702 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] [2022-11-21 09:16:29,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:16:29,704 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:29,704 INFO L85 PathProgramCache]: Analyzing trace with hash 658785939, now seen corresponding path program 1 times [2022-11-21 09:16:29,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:29,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181694444] [2022-11-21 09:16:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:29,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:30,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:30,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181694444] [2022-11-21 09:16:30,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181694444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:30,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:30,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 09:16:30,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699815707] [2022-11-21 09:16:30,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:30,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:16:30,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:30,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:16:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:16:30,806 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 113 [2022-11-21 09:16:30,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 150 transitions, 1077 flow. Second operand has 10 states, 10 states have (on average 88.9) internal successors, (889), 10 states have internal predecessors, (889), 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) [2022-11-21 09:16:30,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:30,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 113 [2022-11-21 09:16:30,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:31,461 INFO L130 PetriNetUnfolder]: 363/1068 cut-off events. [2022-11-21 09:16:31,461 INFO L131 PetriNetUnfolder]: For 12990/14601 co-relation queries the response was YES. [2022-11-21 09:16:31,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5939 conditions, 1068 events. 363/1068 cut-off events. For 12990/14601 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6783 event pairs, 81 based on Foata normal form. 50/1067 useless extension candidates. Maximal degree in co-relation 5871. Up to 392 conditions per place. [2022-11-21 09:16:31,476 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 47 selfloop transitions, 26 changer transitions 31/190 dead transitions. [2022-11-21 09:16:31,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 190 transitions, 1997 flow [2022-11-21 09:16:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:16:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 09:16:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1096 transitions. [2022-11-21 09:16:31,479 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8082595870206489 [2022-11-21 09:16:31,480 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1096 transitions. [2022-11-21 09:16:31,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1096 transitions. [2022-11-21 09:16:31,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:31,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1096 transitions. [2022-11-21 09:16:31,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 91.33333333333333) internal successors, (1096), 12 states have internal predecessors, (1096), 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) [2022-11-21 09:16:31,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:16:31,486 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:16:31,486 INFO L175 Difference]: Start difference. First operand has 163 places, 150 transitions, 1077 flow. Second operand 12 states and 1096 transitions. [2022-11-21 09:16:31,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 190 transitions, 1997 flow [2022-11-21 09:16:31,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 190 transitions, 1946 flow, removed 17 selfloop flow, removed 10 redundant places. [2022-11-21 09:16:31,518 INFO L231 Difference]: Finished difference. Result has 165 places, 154 transitions, 1220 flow [2022-11-21 09:16:31,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1220, PETRI_PLACES=165, PETRI_TRANSITIONS=154} [2022-11-21 09:16:31,520 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 47 predicate places. [2022-11-21 09:16:31,521 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 154 transitions, 1220 flow [2022-11-21 09:16:31,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.9) internal successors, (889), 10 states have internal predecessors, (889), 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) [2022-11-21 09:16:31,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:31,521 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] [2022-11-21 09:16:31,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:16:31,522 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:31,522 INFO L85 PathProgramCache]: Analyzing trace with hash 247721131, now seen corresponding path program 2 times [2022-11-21 09:16:31,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:31,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640884331] [2022-11-21 09:16:31,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:31,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:32,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:32,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640884331] [2022-11-21 09:16:32,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640884331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:32,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:32,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 09:16:32,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844078098] [2022-11-21 09:16:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:32,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:16:32,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:16:32,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:16:32,943 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-11-21 09:16:32,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 1220 flow. Second operand has 12 states, 12 states have (on average 83.83333333333333) internal successors, (1006), 12 states have internal predecessors, (1006), 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) [2022-11-21 09:16:32,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:32,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-11-21 09:16:32,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:34,138 INFO L130 PetriNetUnfolder]: 488/1305 cut-off events. [2022-11-21 09:16:34,138 INFO L131 PetriNetUnfolder]: For 23500/29475 co-relation queries the response was YES. [2022-11-21 09:16:34,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8661 conditions, 1305 events. 488/1305 cut-off events. For 23500/29475 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8334 event pairs, 28 based on Foata normal form. 128/1393 useless extension candidates. Maximal degree in co-relation 8554. Up to 476 conditions per place. [2022-11-21 09:16:34,173 INFO L137 encePairwiseOnDemand]: 97/113 looper letters, 56 selfloop transitions, 60 changer transitions 49/233 dead transitions. [2022-11-21 09:16:34,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 233 transitions, 2866 flow [2022-11-21 09:16:34,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:16:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 09:16:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1406 transitions. [2022-11-21 09:16:34,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776548672566371 [2022-11-21 09:16:34,177 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1406 transitions. [2022-11-21 09:16:34,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1406 transitions. [2022-11-21 09:16:34,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:34,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1406 transitions. [2022-11-21 09:16:34,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 87.875) internal successors, (1406), 16 states have internal predecessors, (1406), 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) [2022-11-21 09:16:34,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 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) [2022-11-21 09:16:34,188 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 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) [2022-11-21 09:16:34,189 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 1220 flow. Second operand 16 states and 1406 transitions. [2022-11-21 09:16:34,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 233 transitions, 2866 flow [2022-11-21 09:16:34,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 233 transitions, 2732 flow, removed 43 selfloop flow, removed 8 redundant places. [2022-11-21 09:16:34,242 INFO L231 Difference]: Finished difference. Result has 174 places, 169 transitions, 1624 flow [2022-11-21 09:16:34,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1624, PETRI_PLACES=174, PETRI_TRANSITIONS=169} [2022-11-21 09:16:34,244 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 56 predicate places. [2022-11-21 09:16:34,245 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 169 transitions, 1624 flow [2022-11-21 09:16:34,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 83.83333333333333) internal successors, (1006), 12 states have internal predecessors, (1006), 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) [2022-11-21 09:16:34,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:34,246 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] [2022-11-21 09:16:34,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:16:34,248 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:34,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1814174438, now seen corresponding path program 1 times [2022-11-21 09:16:34,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:34,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660981197] [2022-11-21 09:16:34,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:34,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:35,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660981197] [2022-11-21 09:16:35,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660981197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:35,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:35,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 09:16:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437352396] [2022-11-21 09:16:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:35,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:16:35,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:35,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:16:35,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:16:35,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 113 [2022-11-21 09:16:35,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 169 transitions, 1624 flow. Second operand has 14 states, 14 states have (on average 87.5) internal successors, (1225), 14 states have internal predecessors, (1225), 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) [2022-11-21 09:16:35,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:35,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 113 [2022-11-21 09:16:35,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:36,709 INFO L130 PetriNetUnfolder]: 413/1168 cut-off events. [2022-11-21 09:16:36,709 INFO L131 PetriNetUnfolder]: For 29064/36710 co-relation queries the response was YES. [2022-11-21 09:16:36,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8811 conditions, 1168 events. 413/1168 cut-off events. For 29064/36710 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 7536 event pairs, 64 based on Foata normal form. 48/1162 useless extension candidates. Maximal degree in co-relation 8697. Up to 451 conditions per place. [2022-11-21 09:16:36,729 INFO L137 encePairwiseOnDemand]: 99/113 looper letters, 62 selfloop transitions, 33 changer transitions 31/215 dead transitions. [2022-11-21 09:16:36,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 215 transitions, 3106 flow [2022-11-21 09:16:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:16:36,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 09:16:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1342 transitions. [2022-11-21 09:16:36,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.791740412979351 [2022-11-21 09:16:36,733 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1342 transitions. [2022-11-21 09:16:36,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1342 transitions. [2022-11-21 09:16:36,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:36,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1342 transitions. [2022-11-21 09:16:36,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 89.46666666666667) internal successors, (1342), 15 states have internal predecessors, (1342), 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) [2022-11-21 09:16:36,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 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) [2022-11-21 09:16:36,749 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 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) [2022-11-21 09:16:36,757 INFO L175 Difference]: Start difference. First operand has 174 places, 169 transitions, 1624 flow. Second operand 15 states and 1342 transitions. [2022-11-21 09:16:36,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 215 transitions, 3106 flow [2022-11-21 09:16:36,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 215 transitions, 2904 flow, removed 78 selfloop flow, removed 10 redundant places. [2022-11-21 09:16:36,830 INFO L231 Difference]: Finished difference. Result has 179 places, 181 transitions, 1940 flow [2022-11-21 09:16:36,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1536, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1940, PETRI_PLACES=179, PETRI_TRANSITIONS=181} [2022-11-21 09:16:36,832 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 61 predicate places. [2022-11-21 09:16:36,832 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 181 transitions, 1940 flow [2022-11-21 09:16:36,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 87.5) internal successors, (1225), 14 states have internal predecessors, (1225), 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) [2022-11-21 09:16:36,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:36,834 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] [2022-11-21 09:16:36,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:16:36,834 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:36,835 INFO L85 PathProgramCache]: Analyzing trace with hash -726158738, now seen corresponding path program 2 times [2022-11-21 09:16:36,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:36,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921461273] [2022-11-21 09:16:36,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:36,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:37,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:37,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921461273] [2022-11-21 09:16:37,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921461273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:37,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:37,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:16:37,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985542547] [2022-11-21 09:16:37,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:37,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 09:16:37,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:37,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 09:16:37,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:16:37,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 113 [2022-11-21 09:16:37,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 181 transitions, 1940 flow. Second operand has 13 states, 13 states have (on average 88.53846153846153) internal successors, (1151), 13 states have internal predecessors, (1151), 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) [2022-11-21 09:16:37,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:37,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 113 [2022-11-21 09:16:37,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:38,369 INFO L130 PetriNetUnfolder]: 369/1093 cut-off events. [2022-11-21 09:16:38,369 INFO L131 PetriNetUnfolder]: For 27433/37211 co-relation queries the response was YES. [2022-11-21 09:16:38,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8150 conditions, 1093 events. 369/1093 cut-off events. For 27433/37211 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7163 event pairs, 60 based on Foata normal form. 47/1087 useless extension candidates. Maximal degree in co-relation 8032. Up to 419 conditions per place. [2022-11-21 09:16:38,396 INFO L137 encePairwiseOnDemand]: 100/113 looper letters, 59 selfloop transitions, 42 changer transitions 13/204 dead transitions. [2022-11-21 09:16:38,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 204 transitions, 2789 flow [2022-11-21 09:16:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 09:16:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 09:16:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1261 transitions. [2022-11-21 09:16:38,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7970922882427307 [2022-11-21 09:16:38,401 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1261 transitions. [2022-11-21 09:16:38,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1261 transitions. [2022-11-21 09:16:38,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:38,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1261 transitions. [2022-11-21 09:16:38,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 90.07142857142857) internal successors, (1261), 14 states have internal predecessors, (1261), 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) [2022-11-21 09:16:38,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 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) [2022-11-21 09:16:38,407 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 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) [2022-11-21 09:16:38,408 INFO L175 Difference]: Start difference. First operand has 179 places, 181 transitions, 1940 flow. Second operand 14 states and 1261 transitions. [2022-11-21 09:16:38,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 204 transitions, 2789 flow [2022-11-21 09:16:38,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 204 transitions, 2522 flow, removed 108 selfloop flow, removed 13 redundant places. [2022-11-21 09:16:38,504 INFO L231 Difference]: Finished difference. Result has 181 places, 190 transitions, 2131 flow [2022-11-21 09:16:38,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1773, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2131, PETRI_PLACES=181, PETRI_TRANSITIONS=190} [2022-11-21 09:16:38,506 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 63 predicate places. [2022-11-21 09:16:38,506 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 190 transitions, 2131 flow [2022-11-21 09:16:38,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 88.53846153846153) internal successors, (1151), 13 states have internal predecessors, (1151), 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) [2022-11-21 09:16:38,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:38,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:16:38,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:16:38,507 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:38,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:38,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1472659766, now seen corresponding path program 3 times [2022-11-21 09:16:38,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:38,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472427129] [2022-11-21 09:16:38,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:38,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:39,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:39,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472427129] [2022-11-21 09:16:39,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472427129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:39,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:39,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 09:16:39,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709801554] [2022-11-21 09:16:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:39,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:16:39,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:39,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:16:39,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 09:16:39,850 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2022-11-21 09:16:39,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 190 transitions, 2131 flow. Second operand has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 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) [2022-11-21 09:16:39,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:39,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2022-11-21 09:16:39,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:41,160 INFO L130 PetriNetUnfolder]: 423/1276 cut-off events. [2022-11-21 09:16:41,161 INFO L131 PetriNetUnfolder]: For 27570/39715 co-relation queries the response was YES. [2022-11-21 09:16:41,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9093 conditions, 1276 events. 423/1276 cut-off events. For 27570/39715 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8665 event pairs, 34 based on Foata normal form. 189/1420 useless extension candidates. Maximal degree in co-relation 8971. Up to 469 conditions per place. [2022-11-21 09:16:41,181 INFO L137 encePairwiseOnDemand]: 97/113 looper letters, 81 selfloop transitions, 75 changer transitions 28/251 dead transitions. [2022-11-21 09:16:41,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 251 transitions, 3664 flow [2022-11-21 09:16:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 09:16:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 09:16:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1623 transitions. [2022-11-21 09:16:41,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7559385188635305 [2022-11-21 09:16:41,187 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1623 transitions. [2022-11-21 09:16:41,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1623 transitions. [2022-11-21 09:16:41,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:41,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1623 transitions. [2022-11-21 09:16:41,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 85.42105263157895) internal successors, (1623), 19 states have internal predecessors, (1623), 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) [2022-11-21 09:16:41,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 113.0) internal successors, (2260), 20 states have internal predecessors, (2260), 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) [2022-11-21 09:16:41,199 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 113.0) internal successors, (2260), 20 states have internal predecessors, (2260), 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) [2022-11-21 09:16:41,199 INFO L175 Difference]: Start difference. First operand has 181 places, 190 transitions, 2131 flow. Second operand 19 states and 1623 transitions. [2022-11-21 09:16:41,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 251 transitions, 3664 flow [2022-11-21 09:16:41,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 251 transitions, 3427 flow, removed 91 selfloop flow, removed 11 redundant places. [2022-11-21 09:16:41,321 INFO L231 Difference]: Finished difference. Result has 194 places, 208 transitions, 2629 flow [2022-11-21 09:16:41,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1979, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2629, PETRI_PLACES=194, PETRI_TRANSITIONS=208} [2022-11-21 09:16:41,322 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 76 predicate places. [2022-11-21 09:16:41,323 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 208 transitions, 2629 flow [2022-11-21 09:16:41,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 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) [2022-11-21 09:16:41,324 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:41,324 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] [2022-11-21 09:16:41,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:16:41,324 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1437554732, now seen corresponding path program 4 times [2022-11-21 09:16:41,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:41,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885492165] [2022-11-21 09:16:41,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:41,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:42,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:42,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885492165] [2022-11-21 09:16:42,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885492165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:42,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:42,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 09:16:42,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719353323] [2022-11-21 09:16:42,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:42,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:16:42,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:16:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:16:42,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2022-11-21 09:16:42,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 208 transitions, 2629 flow. Second operand has 14 states, 14 states have (on average 82.71428571428571) internal successors, (1158), 14 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) [2022-11-21 09:16:42,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:42,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2022-11-21 09:16:42,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:43,670 INFO L130 PetriNetUnfolder]: 439/1284 cut-off events. [2022-11-21 09:16:43,670 INFO L131 PetriNetUnfolder]: For 34681/71453 co-relation queries the response was YES. [2022-11-21 09:16:43,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10186 conditions, 1284 events. 439/1284 cut-off events. For 34681/71453 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8697 event pairs, 15 based on Foata normal form. 103/1340 useless extension candidates. Maximal degree in co-relation 10057. Up to 486 conditions per place. [2022-11-21 09:16:43,689 INFO L137 encePairwiseOnDemand]: 97/113 looper letters, 76 selfloop transitions, 90 changer transitions 28/261 dead transitions. [2022-11-21 09:16:43,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 261 transitions, 4280 flow [2022-11-21 09:16:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 09:16:43,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-21 09:16:43,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1459 transitions. [2022-11-21 09:16:43,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7595002602811036 [2022-11-21 09:16:43,693 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1459 transitions. [2022-11-21 09:16:43,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1459 transitions. [2022-11-21 09:16:43,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:43,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1459 transitions. [2022-11-21 09:16:43,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 85.82352941176471) internal successors, (1459), 17 states have internal predecessors, (1459), 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) [2022-11-21 09:16:43,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 113.0) internal successors, (2034), 18 states have internal predecessors, (2034), 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) [2022-11-21 09:16:43,701 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 113.0) internal successors, (2034), 18 states have internal predecessors, (2034), 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) [2022-11-21 09:16:43,702 INFO L175 Difference]: Start difference. First operand has 194 places, 208 transitions, 2629 flow. Second operand 17 states and 1459 transitions. [2022-11-21 09:16:43,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 261 transitions, 4280 flow [2022-11-21 09:16:43,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 261 transitions, 4016 flow, removed 124 selfloop flow, removed 13 redundant places. [2022-11-21 09:16:43,819 INFO L231 Difference]: Finished difference. Result has 197 places, 219 transitions, 3102 flow [2022-11-21 09:16:43,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2487, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3102, PETRI_PLACES=197, PETRI_TRANSITIONS=219} [2022-11-21 09:16:43,820 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 79 predicate places. [2022-11-21 09:16:43,820 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 219 transitions, 3102 flow [2022-11-21 09:16:43,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 82.71428571428571) internal successors, (1158), 14 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) [2022-11-21 09:16:43,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:43,821 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] [2022-11-21 09:16:43,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 09:16:43,821 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:43,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:43,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1620225912, now seen corresponding path program 1 times [2022-11-21 09:16:43,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:43,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846986060] [2022-11-21 09:16:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:43,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:44,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:44,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:44,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846986060] [2022-11-21 09:16:44,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846986060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:44,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:44,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:16:44,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525324967] [2022-11-21 09:16:44,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:44,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:16:44,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:44,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:16:44,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:16:44,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-21 09:16:44,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 219 transitions, 3102 flow. Second operand has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2022-11-21 09:16:44,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:44,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-21 09:16:44,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:45,397 INFO L130 PetriNetUnfolder]: 2456/4897 cut-off events. [2022-11-21 09:16:45,397 INFO L131 PetriNetUnfolder]: For 180466/191806 co-relation queries the response was YES. [2022-11-21 09:16:45,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31551 conditions, 4897 events. 2456/4897 cut-off events. For 180466/191806 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 38833 event pairs, 96 based on Foata normal form. 744/5420 useless extension candidates. Maximal degree in co-relation 31427. Up to 1619 conditions per place. [2022-11-21 09:16:45,447 INFO L137 encePairwiseOnDemand]: 103/113 looper letters, 171 selfloop transitions, 9 changer transitions 167/460 dead transitions. [2022-11-21 09:16:45,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 460 transitions, 9297 flow [2022-11-21 09:16:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 09:16:45,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 09:16:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 974 transitions. [2022-11-21 09:16:45,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8619469026548673 [2022-11-21 09:16:45,451 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 974 transitions. [2022-11-21 09:16:45,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 974 transitions. [2022-11-21 09:16:45,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:45,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 974 transitions. [2022-11-21 09:16:45,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 97.4) internal successors, (974), 10 states have internal predecessors, (974), 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) [2022-11-21 09:16:45,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 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) [2022-11-21 09:16:45,456 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 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) [2022-11-21 09:16:45,456 INFO L175 Difference]: Start difference. First operand has 197 places, 219 transitions, 3102 flow. Second operand 10 states and 974 transitions. [2022-11-21 09:16:45,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 460 transitions, 9297 flow [2022-11-21 09:16:45,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 460 transitions, 9049 flow, removed 67 selfloop flow, removed 13 redundant places. [2022-11-21 09:16:45,731 INFO L231 Difference]: Finished difference. Result has 194 places, 211 transitions, 2747 flow [2022-11-21 09:16:45,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2666, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2747, PETRI_PLACES=194, PETRI_TRANSITIONS=211} [2022-11-21 09:16:45,732 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 76 predicate places. [2022-11-21 09:16:45,732 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 211 transitions, 2747 flow [2022-11-21 09:16:45,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2022-11-21 09:16:45,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:45,733 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] [2022-11-21 09:16:45,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 09:16:45,733 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:45,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:45,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2092241664, now seen corresponding path program 1 times [2022-11-21 09:16:45,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:45,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454528581] [2022-11-21 09:16:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:45,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:46,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:46,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454528581] [2022-11-21 09:16:46,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454528581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:46,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:46,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:16:46,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62772458] [2022-11-21 09:16:46,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:46,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 09:16:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 09:16:46,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:16:46,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 113 [2022-11-21 09:16:46,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 211 transitions, 2747 flow. Second operand has 13 states, 13 states have (on average 87.61538461538461) internal successors, (1139), 13 states have internal predecessors, (1139), 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) [2022-11-21 09:16:46,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:46,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 113 [2022-11-21 09:16:46,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:47,584 INFO L130 PetriNetUnfolder]: 675/2598 cut-off events. [2022-11-21 09:16:47,584 INFO L131 PetriNetUnfolder]: For 36884/42497 co-relation queries the response was YES. [2022-11-21 09:16:47,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14216 conditions, 2598 events. 675/2598 cut-off events. For 36884/42497 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 25280 event pairs, 194 based on Foata normal form. 171/2592 useless extension candidates. Maximal degree in co-relation 14086. Up to 615 conditions per place. [2022-11-21 09:16:47,613 INFO L137 encePairwiseOnDemand]: 102/113 looper letters, 93 selfloop transitions, 41 changer transitions 0/240 dead transitions. [2022-11-21 09:16:47,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 240 transitions, 3806 flow [2022-11-21 09:16:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 09:16:47,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-21 09:16:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1254 transitions. [2022-11-21 09:16:47,617 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7926675094816688 [2022-11-21 09:16:47,617 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1254 transitions. [2022-11-21 09:16:47,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1254 transitions. [2022-11-21 09:16:47,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:47,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1254 transitions. [2022-11-21 09:16:47,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 89.57142857142857) internal successors, (1254), 14 states have internal predecessors, (1254), 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) [2022-11-21 09:16:47,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 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) [2022-11-21 09:16:47,624 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 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) [2022-11-21 09:16:47,624 INFO L175 Difference]: Start difference. First operand has 194 places, 211 transitions, 2747 flow. Second operand 14 states and 1254 transitions. [2022-11-21 09:16:47,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 240 transitions, 3806 flow [2022-11-21 09:16:47,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 240 transitions, 3796 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-21 09:16:47,758 INFO L231 Difference]: Finished difference. Result has 209 places, 223 transitions, 3276 flow [2022-11-21 09:16:47,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2737, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3276, PETRI_PLACES=209, PETRI_TRANSITIONS=223} [2022-11-21 09:16:47,759 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 91 predicate places. [2022-11-21 09:16:47,759 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 223 transitions, 3276 flow [2022-11-21 09:16:47,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 87.61538461538461) internal successors, (1139), 13 states have internal predecessors, (1139), 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) [2022-11-21 09:16:47,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:47,760 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] [2022-11-21 09:16:47,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 09:16:47,760 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash 823451952, now seen corresponding path program 1 times [2022-11-21 09:16:47,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:47,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219988480] [2022-11-21 09:16:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:47,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:47,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:47,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219988480] [2022-11-21 09:16:47,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219988480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:47,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:47,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:16:47,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940861518] [2022-11-21 09:16:47,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:47,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:16:47,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:47,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:16:47,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:16:47,948 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-21 09:16:47,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 223 transitions, 3276 flow. Second operand has 7 states, 7 states have (on average 92.14285714285714) internal successors, (645), 7 states have internal predecessors, (645), 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) [2022-11-21 09:16:47,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:47,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-21 09:16:47,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:49,193 INFO L130 PetriNetUnfolder]: 1542/3685 cut-off events. [2022-11-21 09:16:49,193 INFO L131 PetriNetUnfolder]: For 119328/127175 co-relation queries the response was YES. [2022-11-21 09:16:49,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25128 conditions, 3685 events. 1542/3685 cut-off events. For 119328/127175 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 31607 event pairs, 77 based on Foata normal form. 604/4208 useless extension candidates. Maximal degree in co-relation 24996. Up to 1114 conditions per place. [2022-11-21 09:16:49,236 INFO L137 encePairwiseOnDemand]: 103/113 looper letters, 128 selfloop transitions, 22 changer transitions 183/437 dead transitions. [2022-11-21 09:16:49,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 437 transitions, 9338 flow [2022-11-21 09:16:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:16:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 09:16:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1262 transitions. [2022-11-21 09:16:49,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8590878148400273 [2022-11-21 09:16:49,243 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1262 transitions. [2022-11-21 09:16:49,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1262 transitions. [2022-11-21 09:16:49,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:49,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1262 transitions. [2022-11-21 09:16:49,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 97.07692307692308) internal successors, (1262), 13 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) [2022-11-21 09:16:49,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:49,252 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 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) [2022-11-21 09:16:49,252 INFO L175 Difference]: Start difference. First operand has 209 places, 223 transitions, 3276 flow. Second operand 13 states and 1262 transitions. [2022-11-21 09:16:49,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 437 transitions, 9338 flow [2022-11-21 09:16:49,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 437 transitions, 8519 flow, removed 269 selfloop flow, removed 14 redundant places. [2022-11-21 09:16:49,623 INFO L231 Difference]: Finished difference. Result has 211 places, 191 transitions, 2197 flow [2022-11-21 09:16:49,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2197, PETRI_PLACES=211, PETRI_TRANSITIONS=191} [2022-11-21 09:16:49,624 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 93 predicate places. [2022-11-21 09:16:49,624 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 191 transitions, 2197 flow [2022-11-21 09:16:49,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.14285714285714) internal successors, (645), 7 states have internal predecessors, (645), 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) [2022-11-21 09:16:49,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:49,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:16:49,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 09:16:49,626 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:49,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:49,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2088280945, now seen corresponding path program 1 times [2022-11-21 09:16:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:49,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8540761] [2022-11-21 09:16:49,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:49,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:49,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8540761] [2022-11-21 09:16:49,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8540761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:49,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:49,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:16:49,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413053521] [2022-11-21 09:16:49,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:49,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:16:49,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:49,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:16:49,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:16:49,901 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2022-11-21 09:16:49,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 191 transitions, 2197 flow. Second operand has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2022-11-21 09:16:49,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:49,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2022-11-21 09:16:49,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:51,045 INFO L130 PetriNetUnfolder]: 654/3087 cut-off events. [2022-11-21 09:16:51,045 INFO L131 PetriNetUnfolder]: For 20773/21552 co-relation queries the response was YES. [2022-11-21 09:16:51,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12998 conditions, 3087 events. 654/3087 cut-off events. For 20773/21552 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 34529 event pairs, 18 based on Foata normal form. 43/2967 useless extension candidates. Maximal degree in co-relation 12937. Up to 983 conditions per place. [2022-11-21 09:16:51,064 INFO L137 encePairwiseOnDemand]: 107/113 looper letters, 67 selfloop transitions, 1 changer transitions 78/261 dead transitions. [2022-11-21 09:16:51,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 261 transitions, 4019 flow [2022-11-21 09:16:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:16:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-21 09:16:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 677 transitions. [2022-11-21 09:16:51,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8558786346396966 [2022-11-21 09:16:51,073 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 677 transitions. [2022-11-21 09:16:51,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 677 transitions. [2022-11-21 09:16:51,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:51,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 677 transitions. [2022-11-21 09:16:51,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.71428571428571) internal successors, (677), 7 states have internal predecessors, (677), 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) [2022-11-21 09:16:51,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 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) [2022-11-21 09:16:51,078 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 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) [2022-11-21 09:16:51,079 INFO L175 Difference]: Start difference. First operand has 211 places, 191 transitions, 2197 flow. Second operand 7 states and 677 transitions. [2022-11-21 09:16:51,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 261 transitions, 4019 flow [2022-11-21 09:16:51,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 261 transitions, 3781 flow, removed 106 selfloop flow, removed 12 redundant places. [2022-11-21 09:16:51,281 INFO L231 Difference]: Finished difference. Result has 204 places, 165 transitions, 1592 flow [2022-11-21 09:16:51,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=2027, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1592, PETRI_PLACES=204, PETRI_TRANSITIONS=165} [2022-11-21 09:16:51,282 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 86 predicate places. [2022-11-21 09:16:51,282 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 165 transitions, 1592 flow [2022-11-21 09:16:51,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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) [2022-11-21 09:16:51,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:51,283 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] [2022-11-21 09:16:51,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 09:16:51,283 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:51,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1284118383, now seen corresponding path program 2 times [2022-11-21 09:16:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:51,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635126871] [2022-11-21 09:16:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:51,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:51,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:51,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635126871] [2022-11-21 09:16:51,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635126871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:51,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:51,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:16:51,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554085401] [2022-11-21 09:16:51,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:51,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:16:51,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:16:51,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:16:51,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 113 [2022-11-21 09:16:51,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 165 transitions, 1592 flow. Second operand has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 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) [2022-11-21 09:16:51,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:51,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 113 [2022-11-21 09:16:51,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:52,337 INFO L130 PetriNetUnfolder]: 421/2066 cut-off events. [2022-11-21 09:16:52,337 INFO L131 PetriNetUnfolder]: For 10344/10470 co-relation queries the response was YES. [2022-11-21 09:16:52,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6860 conditions, 2066 events. 421/2066 cut-off events. For 10344/10470 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 21108 event pairs, 20 based on Foata normal form. 23/1990 useless extension candidates. Maximal degree in co-relation 6802. Up to 252 conditions per place. [2022-11-21 09:16:52,349 INFO L137 encePairwiseOnDemand]: 105/113 looper letters, 50 selfloop transitions, 9 changer transitions 50/200 dead transitions. [2022-11-21 09:16:52,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 200 transitions, 2572 flow [2022-11-21 09:16:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 09:16:52,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 09:16:52,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 879 transitions. [2022-11-21 09:16:52,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7778761061946903 [2022-11-21 09:16:52,352 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 879 transitions. [2022-11-21 09:16:52,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 879 transitions. [2022-11-21 09:16:52,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:52,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 879 transitions. [2022-11-21 09:16:52,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.9) internal successors, (879), 10 states have internal predecessors, (879), 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) [2022-11-21 09:16:52,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 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) [2022-11-21 09:16:52,357 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 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) [2022-11-21 09:16:52,357 INFO L175 Difference]: Start difference. First operand has 204 places, 165 transitions, 1592 flow. Second operand 10 states and 879 transitions. [2022-11-21 09:16:52,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 200 transitions, 2572 flow [2022-11-21 09:16:52,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 200 transitions, 2397 flow, removed 76 selfloop flow, removed 14 redundant places. [2022-11-21 09:16:52,419 INFO L231 Difference]: Finished difference. Result has 200 places, 145 transitions, 1138 flow [2022-11-21 09:16:52,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1507, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1138, PETRI_PLACES=200, PETRI_TRANSITIONS=145} [2022-11-21 09:16:52,420 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 82 predicate places. [2022-11-21 09:16:52,420 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 145 transitions, 1138 flow [2022-11-21 09:16:52,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 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) [2022-11-21 09:16:52,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:52,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:16:52,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 09:16:52,421 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -441049559, now seen corresponding path program 1 times [2022-11-21 09:16:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:52,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506232278] [2022-11-21 09:16:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:52,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:16:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:16:52,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:16:52,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506232278] [2022-11-21 09:16:52,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506232278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:16:52,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:16:52,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 09:16:52,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284007425] [2022-11-21 09:16:52,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:16:52,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 09:16:52,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:16:52,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 09:16:52,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:16:52,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-21 09:16:52,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 145 transitions, 1138 flow. Second operand has 8 states, 8 states have (on average 92.125) internal successors, (737), 8 states have internal predecessors, (737), 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) [2022-11-21 09:16:52,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:16:52,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-21 09:16:52,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:16:53,370 INFO L130 PetriNetUnfolder]: 591/1899 cut-off events. [2022-11-21 09:16:53,371 INFO L131 PetriNetUnfolder]: For 26181/27741 co-relation queries the response was YES. [2022-11-21 09:16:53,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9081 conditions, 1899 events. 591/1899 cut-off events. For 26181/27741 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 17314 event pairs, 22 based on Foata normal form. 222/2084 useless extension candidates. Maximal degree in co-relation 9026. Up to 321 conditions per place. [2022-11-21 09:16:53,379 INFO L137 encePairwiseOnDemand]: 103/113 looper letters, 20 selfloop transitions, 12 changer transitions 139/246 dead transitions. [2022-11-21 09:16:53,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 246 transitions, 3338 flow [2022-11-21 09:16:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:16:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 09:16:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1518 transitions. [2022-11-21 09:16:53,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8396017699115044 [2022-11-21 09:16:53,386 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1518 transitions. [2022-11-21 09:16:53,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1518 transitions. [2022-11-21 09:16:53,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:16:53,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1518 transitions. [2022-11-21 09:16:53,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 94.875) internal successors, (1518), 16 states have internal predecessors, (1518), 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) [2022-11-21 09:16:53,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 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) [2022-11-21 09:16:53,393 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 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) [2022-11-21 09:16:53,393 INFO L175 Difference]: Start difference. First operand has 200 places, 145 transitions, 1138 flow. Second operand 16 states and 1518 transitions. [2022-11-21 09:16:53,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 246 transitions, 3338 flow [2022-11-21 09:16:53,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 246 transitions, 2500 flow, removed 272 selfloop flow, removed 30 redundant places. [2022-11-21 09:16:53,448 INFO L231 Difference]: Finished difference. Result has 185 places, 101 transitions, 449 flow [2022-11-21 09:16:53,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=449, PETRI_PLACES=185, PETRI_TRANSITIONS=101} [2022-11-21 09:16:53,449 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 67 predicate places. [2022-11-21 09:16:53,450 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 101 transitions, 449 flow [2022-11-21 09:16:53,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 92.125) internal successors, (737), 8 states have internal predecessors, (737), 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) [2022-11-21 09:16:53,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:16:53,450 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:16:53,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 09:16:53,451 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-11-21 09:16:53,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:16:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 538098293, now seen corresponding path program 1 times [2022-11-21 09:16:53,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:16:53,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285853480] [2022-11-21 09:16:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:16:53,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:16:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:16:53,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:16:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:16:53,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:16:53,546 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 09:16:53,547 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-11-21 09:16:53,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-11-21 09:16:53,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-21 09:16:53,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-11-21 09:16:53,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-11-21 09:16:53,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-11-21 09:16:53,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 09:16:53,551 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:16:53,558 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 09:16:53,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:16:53,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:16:53 BasicIcfg [2022-11-21 09:16:53,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:16:53,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:16:53,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:16:53,697 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:16:53,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:16:12" (3/4) ... [2022-11-21 09:16:53,699 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 09:16:53,817 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:16:53,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:16:53,818 INFO L158 Benchmark]: Toolchain (without parser) took 42627.72ms. Allocated memory was 134.2MB in the beginning and 868.2MB in the end (delta: 734.0MB). Free memory was 101.4MB in the beginning and 493.1MB in the end (delta: -391.8MB). Peak memory consumption was 345.8MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,818 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:16:53,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.59ms. Allocated memory is still 134.2MB. Free memory was 101.0MB in the beginning and 78.5MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.66ms. Allocated memory is still 134.2MB. Free memory was 78.5MB in the beginning and 75.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,819 INFO L158 Benchmark]: Boogie Preprocessor took 34.29ms. Allocated memory is still 134.2MB. Free memory was 75.6MB in the beginning and 73.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,820 INFO L158 Benchmark]: RCFGBuilder took 970.07ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 73.8MB in the beginning and 149.5MB in the end (delta: -75.6MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,820 INFO L158 Benchmark]: TraceAbstraction took 40695.85ms. Allocated memory was 188.7MB in the beginning and 868.2MB in the end (delta: 679.5MB). Free memory was 148.4MB in the beginning and 515.2MB in the end (delta: -366.7MB). Peak memory consumption was 312.7MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,821 INFO L158 Benchmark]: Witness Printer took 120.57ms. Allocated memory is still 868.2MB. Free memory was 515.2MB in the beginning and 493.1MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 09:16:53,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.59ms. Allocated memory is still 134.2MB. Free memory was 101.0MB in the beginning and 78.5MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.66ms. Allocated memory is still 134.2MB. Free memory was 78.5MB in the beginning and 75.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.29ms. Allocated memory is still 134.2MB. Free memory was 75.6MB in the beginning and 73.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 970.07ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 73.8MB in the beginning and 149.5MB in the end (delta: -75.6MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * TraceAbstraction took 40695.85ms. Allocated memory was 188.7MB in the beginning and 868.2MB in the end (delta: 679.5MB). Free memory was 148.4MB in the beginning and 515.2MB in the end (delta: -366.7MB). Peak memory consumption was 312.7MB. Max. memory is 16.1GB. * Witness Printer took 120.57ms. Allocated memory is still 868.2MB. Free memory was 515.2MB in the beginning and 493.1MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L712] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L713] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L715] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L717] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L718] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L719] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L720] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L721] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L722] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L723] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L724] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L726] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L727] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L728] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L729] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L730] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L731] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L732] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L733] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L736] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L737] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t1492; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1492={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L814] FCALL, FORK 0 pthread_create(&t1492, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1492, ((void *)0), P0, ((void *)0))=-2, t1492={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t1493; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L816] FCALL, FORK 0 pthread_create(&t1493, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1493, ((void *)0), P1, ((void *)0))=-1, t1492={5:0}, t1493={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] 0 pthread_t t1494; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L818] FCALL, FORK 0 pthread_create(&t1494, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1494, ((void *)0), P2, ((void *)0))=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L776] 3 y$w_buff1 = y$w_buff0 [L777] 3 y$w_buff0 = 2 [L778] 3 y$w_buff1_used = y$w_buff0_used [L779] 3 y$w_buff0_used = (_Bool)1 [L780] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L780] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L781] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L782] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L783] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L784] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L785] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L788] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L741] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L744] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L756] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L759] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L762] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L763] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L764] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L765] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L766] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L749] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L822] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L822] RET 0 assume_abort_if_not(main$tmp_guard0) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1492={5:0}, t1493={6:0}, t1494={3:0}, weak$$choice0=53, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L846] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 814]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 139 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 40.4s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1245 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1245 mSDsluCounter, 1766 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1437 mSDsCounter, 195 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2898 IncrementalHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 195 mSolverCounterUnsat, 329 mSDtfsCounter, 2898 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 340 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 299 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3276occurred in iteration=16, InterpolantAutomatonStates: 271, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 1634 NumberOfCodeBlocks, 1634 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1527 ConstructedInterpolants, 0 QuantifiedInterpolants, 11088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 09:16:53,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb4134b4-485f-48e8-922f-79e97d75575b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE