./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- 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-e04fb08 [2022-11-16 12:39:15,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:39:15,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:39:15,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:39:15,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:39:15,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:39:15,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:39:15,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:39:15,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:39:15,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:39:15,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:39:15,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:39:15,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:39:15,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:39:15,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:39:15,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:39:15,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:39:15,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:39:15,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:39:15,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:39:15,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:39:15,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:39:15,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:39:15,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:39:15,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:39:15,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:39:15,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:39:15,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:39:15,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:39:15,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:39:15,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:39:15,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:39:15,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:39:15,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:39:15,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:39:15,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:39:15,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:39:15,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:39:15,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:39:15,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:39:15,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:39:15,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:39:15,178 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:39:15,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:39:15,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:39:15,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:39:15,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:39:15,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:39:15,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:39:15,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:39:15,187 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:39:15,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:39:15,189 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:39:15,189 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:39:15,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:39:15,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:39:15,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:39:15,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:39:15,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:39:15,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:39:15,191 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:39:15,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:39:15,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:39:15,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:39:15,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:39:15,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:39:15,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:39:15,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:39:15,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:39:15,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:39:15,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:39:15,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:39:15,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:39:15,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:39:15,196 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:39:15,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:39:15,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:39:15,197 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_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2022-11-16 12:39:15,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:39:15,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:39:15,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:39:15,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:39:15,537 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:39:15,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-16 12:39:15,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/data/665f95673/a26bfbd19be0419dbc487cd8f79c26bd/FLAG1d7220c0f [2022-11-16 12:39:16,368 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:39:16,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-16 12:39:16,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/data/665f95673/a26bfbd19be0419dbc487cd8f79c26bd/FLAG1d7220c0f [2022-11-16 12:39:16,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/data/665f95673/a26bfbd19be0419dbc487cd8f79c26bd [2022-11-16 12:39:16,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:39:16,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:39:16,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:39:16,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:39:16,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:39:16,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:16" (1/1) ... [2022-11-16 12:39:16,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5ab0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:16, skipping insertion in model container [2022-11-16 12:39:16,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:16" (1/1) ... [2022-11-16 12:39:16,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:39:16,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:39:16,995 WARN L229 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_dc4c4715-b26d-4315-8e99-03535a65cf94/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-16 12:39:17,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:39:17,622 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:39:17,637 WARN L229 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_dc4c4715-b26d-4315-8e99-03535a65cf94/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-16 12:39:17,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:39:17,765 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:39:17,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17 WrapperNode [2022-11-16 12:39:17,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:39:17,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:39:17,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:39:17,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:39:17,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,818 INFO L138 Inliner]: procedures = 365, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-11-16 12:39:17,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:39:17,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:39:17,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:39:17,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:39:17,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:39:17,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:39:17,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:39:17,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:39:17,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (1/1) ... [2022-11-16 12:39:17,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:39:17,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:17,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:39:17,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:39:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:39:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:39:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:39:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:39:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:39:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-11-16 12:39:17,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-11-16 12:39:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:39:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:39:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:39:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:39:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:39:17,976 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:39:18,159 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:39:18,161 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:39:18,418 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:39:18,442 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:39:18,443 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:39:18,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:18 BoogieIcfgContainer [2022-11-16 12:39:18,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:39:18,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:39:18,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:39:18,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:39:18,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:39:16" (1/3) ... [2022-11-16 12:39:18,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cae87a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:18, skipping insertion in model container [2022-11-16 12:39:18,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:17" (2/3) ... [2022-11-16 12:39:18,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cae87a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:18, skipping insertion in model container [2022-11-16 12:39:18,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:18" (3/3) ... [2022-11-16 12:39:18,465 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2022-11-16 12:39:18,474 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:39:18,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:39:18,486 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 12:39:18,486 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:39:18,574 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:39:18,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 113 transitions, 234 flow [2022-11-16 12:39:18,709 INFO L130 PetriNetUnfolder]: 7/112 cut-off events. [2022-11-16 12:39:18,710 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:39:18,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 7/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 117 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-16 12:39:18,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 113 transitions, 234 flow [2022-11-16 12:39:18,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 89 transitions, 181 flow [2022-11-16 12:39:18,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:39:18,741 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;@37870c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:39:18,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-16 12:39:18,763 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2022-11-16 12:39:18,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:39:18,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:18,765 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] [2022-11-16 12:39:18,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:18,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:18,772 INFO L85 PathProgramCache]: Analyzing trace with hash -97804948, now seen corresponding path program 1 times [2022-11-16 12:39:18,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:18,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630188868] [2022-11-16 12:39:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:18,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:19,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:19,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630188868] [2022-11-16 12:39:19,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630188868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:19,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:19,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:19,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258673228] [2022-11-16 12:39:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:19,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:19,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:19,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:19,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:19,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 181 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:19,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:19,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:19,599 INFO L130 PetriNetUnfolder]: 64/255 cut-off events. [2022-11-16 12:39:19,600 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:39:19,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 255 events. 64/255 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1074 event pairs, 10 based on Foata normal form. 36/209 useless extension candidates. Maximal degree in co-relation 330. Up to 90 conditions per place. [2022-11-16 12:39:19,608 INFO L137 encePairwiseOnDemand]: 101/113 looper letters, 20 selfloop transitions, 7 changer transitions 0/100 dead transitions. [2022-11-16 12:39:19,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 100 transitions, 257 flow [2022-11-16 12:39:19,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2022-11-16 12:39:19,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8743362831858407 [2022-11-16 12:39:19,640 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 494 transitions. [2022-11-16 12:39:19,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 494 transitions. [2022-11-16 12:39:19,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:19,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 494 transitions. [2022-11-16 12:39:19,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,665 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 181 flow. Second operand 5 states and 494 transitions. [2022-11-16 12:39:19,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 100 transitions, 257 flow [2022-11-16 12:39:19,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:19,674 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 236 flow [2022-11-16 12:39:19,676 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2022-11-16 12:39:19,680 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2022-11-16 12:39:19,681 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 236 flow [2022-11-16 12:39:19,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:19,682 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] [2022-11-16 12:39:19,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:39:19,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash 218409776, now seen corresponding path program 1 times [2022-11-16 12:39:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:19,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798086000] [2022-11-16 12:39:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:19,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:19,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:19,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:19,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798086000] [2022-11-16 12:39:19,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798086000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:19,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:19,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377713726] [2022-11-16 12:39:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:19,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:19,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:19,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:19,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:19,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:19,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:19,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:19,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:19,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:20,031 INFO L130 PetriNetUnfolder]: 110/322 cut-off events. [2022-11-16 12:39:20,031 INFO L131 PetriNetUnfolder]: For 182/206 co-relation queries the response was YES. [2022-11-16 12:39:20,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 322 events. 110/322 cut-off events. For 182/206 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1647 event pairs, 13 based on Foata normal form. 2/247 useless extension candidates. Maximal degree in co-relation 712. Up to 128 conditions per place. [2022-11-16 12:39:20,035 INFO L137 encePairwiseOnDemand]: 106/113 looper letters, 25 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2022-11-16 12:39:20,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 105 transitions, 347 flow [2022-11-16 12:39:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 479 transitions. [2022-11-16 12:39:20,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8477876106194691 [2022-11-16 12:39:20,038 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 479 transitions. [2022-11-16 12:39:20,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 479 transitions. [2022-11-16 12:39:20,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:20,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 479 transitions. [2022-11-16 12:39:20,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,044 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,044 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 236 flow. Second operand 5 states and 479 transitions. [2022-11-16 12:39:20,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 105 transitions, 347 flow [2022-11-16 12:39:20,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:39:20,050 INFO L231 Difference]: Finished difference. Result has 101 places, 95 transitions, 268 flow [2022-11-16 12:39:20,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=268, PETRI_PLACES=101, PETRI_TRANSITIONS=95} [2022-11-16 12:39:20,052 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2022-11-16 12:39:20,052 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 95 transitions, 268 flow [2022-11-16 12:39:20,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:20,053 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] [2022-11-16 12:39:20,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:39:20,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:20,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1422008706, now seen corresponding path program 1 times [2022-11-16 12:39:20,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:20,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307891426] [2022-11-16 12:39:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:20,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:20,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:20,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307891426] [2022-11-16 12:39:20,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307891426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:20,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:20,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:20,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436860828] [2022-11-16 12:39:20,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:20,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:20,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:20,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2022-11-16 12:39:20,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 95 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:20,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2022-11-16 12:39:20,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:20,419 INFO L130 PetriNetUnfolder]: 50/295 cut-off events. [2022-11-16 12:39:20,420 INFO L131 PetriNetUnfolder]: For 95/123 co-relation queries the response was YES. [2022-11-16 12:39:20,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 295 events. 50/295 cut-off events. For 95/123 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1399 event pairs, 33 based on Foata normal form. 10/262 useless extension candidates. Maximal degree in co-relation 587. Up to 96 conditions per place. [2022-11-16 12:39:20,424 INFO L137 encePairwiseOnDemand]: 106/113 looper letters, 21 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2022-11-16 12:39:20,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 103 transitions, 342 flow [2022-11-16 12:39:20,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:20,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2022-11-16 12:39:20,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8336283185840708 [2022-11-16 12:39:20,427 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2022-11-16 12:39:20,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2022-11-16 12:39:20,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:20,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2022-11-16 12:39:20,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,432 INFO L175 Difference]: Start difference. First operand has 101 places, 95 transitions, 268 flow. Second operand 5 states and 471 transitions. [2022-11-16 12:39:20,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 103 transitions, 342 flow [2022-11-16 12:39:20,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:20,438 INFO L231 Difference]: Finished difference. Result has 107 places, 98 transitions, 298 flow [2022-11-16 12:39:20,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=107, PETRI_TRANSITIONS=98} [2022-11-16 12:39:20,439 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2022-11-16 12:39:20,439 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 98 transitions, 298 flow [2022-11-16 12:39:20,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:20,440 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] [2022-11-16 12:39:20,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:39:20,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:20,442 INFO L85 PathProgramCache]: Analyzing trace with hash 602843956, now seen corresponding path program 1 times [2022-11-16 12:39:20,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:20,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764775806] [2022-11-16 12:39:20,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:20,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:20,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:20,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764775806] [2022-11-16 12:39:20,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764775806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:20,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:20,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:39:20,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962162834] [2022-11-16 12:39:20,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:20,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:39:20,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:20,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:39:20,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:39:20,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:20,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 98 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:20,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:20,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:20,747 INFO L130 PetriNetUnfolder]: 123/583 cut-off events. [2022-11-16 12:39:20,747 INFO L131 PetriNetUnfolder]: For 216/289 co-relation queries the response was YES. [2022-11-16 12:39:20,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 583 events. 123/583 cut-off events. For 216/289 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3593 event pairs, 28 based on Foata normal form. 12/508 useless extension candidates. Maximal degree in co-relation 1334. Up to 147 conditions per place. [2022-11-16 12:39:20,754 INFO L137 encePairwiseOnDemand]: 104/113 looper letters, 28 selfloop transitions, 18 changer transitions 0/125 dead transitions. [2022-11-16 12:39:20,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 125 transitions, 501 flow [2022-11-16 12:39:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:39:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:39:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 678 transitions. [2022-11-16 12:39:20,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-11-16 12:39:20,758 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 678 transitions. [2022-11-16 12:39:20,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 678 transitions. [2022-11-16 12:39:20,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:20,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 678 transitions. [2022-11-16 12:39:20,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,767 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) [2022-11-16 12:39:20,769 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) [2022-11-16 12:39:20,770 INFO L175 Difference]: Start difference. First operand has 107 places, 98 transitions, 298 flow. Second operand 7 states and 678 transitions. [2022-11-16 12:39:20,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 125 transitions, 501 flow [2022-11-16 12:39:20,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 125 transitions, 499 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:39:20,781 INFO L231 Difference]: Finished difference. Result has 116 places, 109 transitions, 445 flow [2022-11-16 12:39:20,783 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=445, PETRI_PLACES=116, PETRI_TRANSITIONS=109} [2022-11-16 12:39:20,785 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 28 predicate places. [2022-11-16 12:39:20,786 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 109 transitions, 445 flow [2022-11-16 12:39:20,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:20,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:20,794 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:20,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:39:20,794 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:20,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 411063107, now seen corresponding path program 1 times [2022-11-16 12:39:20,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:20,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767836732] [2022-11-16 12:39:20,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:20,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:21,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:21,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767836732] [2022-11-16 12:39:21,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767836732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:21,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083566819] [2022-11-16 12:39:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:21,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:21,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:39:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:21,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:39:21,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:21,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:21,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:39:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:21,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083566819] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:39:21,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:39:21,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 12:39:21,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533277136] [2022-11-16 12:39:21,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:39:21,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:39:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:39:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:39:21,587 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:21,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 109 transitions, 445 flow. Second operand has 12 states, 12 states have (on average 92.25) internal successors, (1107), 12 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:21,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:21,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:21,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:22,550 INFO L130 PetriNetUnfolder]: 435/2025 cut-off events. [2022-11-16 12:39:22,550 INFO L131 PetriNetUnfolder]: For 4296/4605 co-relation queries the response was YES. [2022-11-16 12:39:22,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5922 conditions, 2025 events. 435/2025 cut-off events. For 4296/4605 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 17462 event pairs, 6 based on Foata normal form. 80/2020 useless extension candidates. Maximal degree in co-relation 5862. Up to 522 conditions per place. [2022-11-16 12:39:22,571 INFO L137 encePairwiseOnDemand]: 103/113 looper letters, 68 selfloop transitions, 126 changer transitions 0/273 dead transitions. [2022-11-16 12:39:22,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 273 transitions, 1988 flow [2022-11-16 12:39:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 12:39:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-16 12:39:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3170 transitions. [2022-11-16 12:39:22,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8500938589434165 [2022-11-16 12:39:22,581 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3170 transitions. [2022-11-16 12:39:22,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3170 transitions. [2022-11-16 12:39:22,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:22,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3170 transitions. [2022-11-16 12:39:22,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 96.06060606060606) internal successors, (3170), 33 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:22,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 113.0) internal successors, (3842), 34 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:22,601 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 113.0) internal successors, (3842), 34 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:22,601 INFO L175 Difference]: Start difference. First operand has 116 places, 109 transitions, 445 flow. Second operand 33 states and 3170 transitions. [2022-11-16 12:39:22,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 273 transitions, 1988 flow [2022-11-16 12:39:22,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 273 transitions, 1979 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:39:22,619 INFO L231 Difference]: Finished difference. Result has 169 places, 226 transitions, 1996 flow [2022-11-16 12:39:22,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=1996, PETRI_PLACES=169, PETRI_TRANSITIONS=226} [2022-11-16 12:39:22,620 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 81 predicate places. [2022-11-16 12:39:22,620 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 226 transitions, 1996 flow [2022-11-16 12:39:22,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 92.25) internal successors, (1107), 12 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:22,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:22,622 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:22,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:22,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:22,829 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1987551329, now seen corresponding path program 1 times [2022-11-16 12:39:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:22,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855832106] [2022-11-16 12:39:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:22,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:22,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855832106] [2022-11-16 12:39:22,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855832106] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:22,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138477714] [2022-11-16 12:39:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:22,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:22,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:22,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:22,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:39:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:23,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:39:23,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:23,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:39:23,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138477714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:23,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:39:23,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-16 12:39:23,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215029657] [2022-11-16 12:39:23,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:23,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:23,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:23,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:23,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:39:23,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2022-11-16 12:39:23,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 226 transitions, 1996 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:23,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:23,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2022-11-16 12:39:23,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:23,534 INFO L130 PetriNetUnfolder]: 252/1403 cut-off events. [2022-11-16 12:39:23,535 INFO L131 PetriNetUnfolder]: For 15506/15937 co-relation queries the response was YES. [2022-11-16 12:39:23,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5451 conditions, 1403 events. 252/1403 cut-off events. For 15506/15937 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 10893 event pairs, 7 based on Foata normal form. 76/1470 useless extension candidates. Maximal degree in co-relation 5367. Up to 342 conditions per place. [2022-11-16 12:39:23,557 INFO L137 encePairwiseOnDemand]: 108/113 looper letters, 95 selfloop transitions, 19 changer transitions 0/238 dead transitions. [2022-11-16 12:39:23,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 238 transitions, 2364 flow [2022-11-16 12:39:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:39:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:39:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2022-11-16 12:39:23,560 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8827433628318584 [2022-11-16 12:39:23,560 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2022-11-16 12:39:23,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2022-11-16 12:39:23,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:23,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2022-11-16 12:39:23,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:23,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:23,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:23,564 INFO L175 Difference]: Start difference. First operand has 169 places, 226 transitions, 1996 flow. Second operand 4 states and 399 transitions. [2022-11-16 12:39:23,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 238 transitions, 2364 flow [2022-11-16 12:39:23,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 238 transitions, 1848 flow, removed 247 selfloop flow, removed 4 redundant places. [2022-11-16 12:39:23,654 INFO L231 Difference]: Finished difference. Result has 169 places, 220 transitions, 1586 flow [2022-11-16 12:39:23,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1375, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1586, PETRI_PLACES=169, PETRI_TRANSITIONS=220} [2022-11-16 12:39:23,658 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 81 predicate places. [2022-11-16 12:39:23,658 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 220 transitions, 1586 flow [2022-11-16 12:39:23,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:23,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:23,659 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] [2022-11-16 12:39:23,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:23,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:23,865 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:23,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:23,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1373520242, now seen corresponding path program 1 times [2022-11-16 12:39:23,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:23,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216716770] [2022-11-16 12:39:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216716770] [2022-11-16 12:39:23,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216716770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:23,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:23,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:39:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353803098] [2022-11-16 12:39:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:23,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:39:23,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:23,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:39:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:39:23,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:23,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 220 transitions, 1586 flow. Second operand has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:23,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:23,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:23,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:24,504 INFO L130 PetriNetUnfolder]: 408/2044 cut-off events. [2022-11-16 12:39:24,504 INFO L131 PetriNetUnfolder]: For 25632/26021 co-relation queries the response was YES. [2022-11-16 12:39:24,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7731 conditions, 2044 events. 408/2044 cut-off events. For 25632/26021 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 17495 event pairs, 55 based on Foata normal form. 120/2105 useless extension candidates. Maximal degree in co-relation 7645. Up to 445 conditions per place. [2022-11-16 12:39:24,536 INFO L137 encePairwiseOnDemand]: 105/113 looper letters, 174 selfloop transitions, 23 changer transitions 0/276 dead transitions. [2022-11-16 12:39:24,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 276 transitions, 2586 flow [2022-11-16 12:39:24,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:39:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:39:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 582 transitions. [2022-11-16 12:39:24,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8584070796460177 [2022-11-16 12:39:24,539 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 582 transitions. [2022-11-16 12:39:24,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 582 transitions. [2022-11-16 12:39:24,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:24,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 582 transitions. [2022-11-16 12:39:24,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:24,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 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) [2022-11-16 12:39:24,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 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) [2022-11-16 12:39:24,544 INFO L175 Difference]: Start difference. First operand has 169 places, 220 transitions, 1586 flow. Second operand 6 states and 582 transitions. [2022-11-16 12:39:24,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 276 transitions, 2586 flow [2022-11-16 12:39:24,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 276 transitions, 2502 flow, removed 18 selfloop flow, removed 2 redundant places. [2022-11-16 12:39:24,729 INFO L231 Difference]: Finished difference. Result has 174 places, 226 transitions, 1817 flow [2022-11-16 12:39:24,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1477, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1817, PETRI_PLACES=174, PETRI_TRANSITIONS=226} [2022-11-16 12:39:24,731 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 86 predicate places. [2022-11-16 12:39:24,731 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 226 transitions, 1817 flow [2022-11-16 12:39:24,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.4) internal successors, (457), 5 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:24,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:24,732 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:24,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:39:24,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:24,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:24,733 INFO L85 PathProgramCache]: Analyzing trace with hash -141945265, now seen corresponding path program 1 times [2022-11-16 12:39:24,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:24,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244807169] [2022-11-16 12:39:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:24,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:24,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:24,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244807169] [2022-11-16 12:39:24,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244807169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:24,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560895244] [2022-11-16 12:39:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:24,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:24,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:24,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:24,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:39:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:24,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:39:24,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:25,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:39:25,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560895244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:25,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:39:25,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:39:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587453243] [2022-11-16 12:39:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:25,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:25,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:25,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:39:25,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:25,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 226 transitions, 1817 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:25,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:25,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:25,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:25,620 INFO L130 PetriNetUnfolder]: 282/1697 cut-off events. [2022-11-16 12:39:25,620 INFO L131 PetriNetUnfolder]: For 20213/20538 co-relation queries the response was YES. [2022-11-16 12:39:25,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5974 conditions, 1697 events. 282/1697 cut-off events. For 20213/20538 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13938 event pairs, 53 based on Foata normal form. 154/1803 useless extension candidates. Maximal degree in co-relation 5886. Up to 549 conditions per place. [2022-11-16 12:39:25,642 INFO L137 encePairwiseOnDemand]: 106/113 looper letters, 95 selfloop transitions, 15 changer transitions 0/189 dead transitions. [2022-11-16 12:39:25,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 189 transitions, 1686 flow [2022-11-16 12:39:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:39:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 12:39:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 750 transitions. [2022-11-16 12:39:25,645 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8296460176991151 [2022-11-16 12:39:25,645 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 750 transitions. [2022-11-16 12:39:25,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 750 transitions. [2022-11-16 12:39:25,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:25,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 750 transitions. [2022-11-16 12:39:25,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 93.75) internal successors, (750), 8 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:25,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 113.0) internal successors, (1017), 9 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:25,652 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 113.0) internal successors, (1017), 9 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:25,652 INFO L175 Difference]: Start difference. First operand has 174 places, 226 transitions, 1817 flow. Second operand 8 states and 750 transitions. [2022-11-16 12:39:25,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 189 transitions, 1686 flow [2022-11-16 12:39:25,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 189 transitions, 1594 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-16 12:39:25,701 INFO L231 Difference]: Finished difference. Result has 161 places, 180 transitions, 1307 flow [2022-11-16 12:39:25,701 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1307, PETRI_PLACES=161, PETRI_TRANSITIONS=180} [2022-11-16 12:39:25,705 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 73 predicate places. [2022-11-16 12:39:25,705 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 180 transitions, 1307 flow [2022-11-16 12:39:25,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:25,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:25,706 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:25,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:25,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:25,912 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1223628021, now seen corresponding path program 1 times [2022-11-16 12:39:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:25,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991355072] [2022-11-16 12:39:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:25,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:39:25,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:25,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991355072] [2022-11-16 12:39:25,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991355072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:25,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:25,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:25,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118327660] [2022-11-16 12:39:25,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:25,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:25,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:25,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:25,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:25,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2022-11-16 12:39:25,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 180 transitions, 1307 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:25,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:25,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2022-11-16 12:39:25,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:26,322 INFO L130 PetriNetUnfolder]: 176/1262 cut-off events. [2022-11-16 12:39:26,322 INFO L131 PetriNetUnfolder]: For 9471/9885 co-relation queries the response was YES. [2022-11-16 12:39:26,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 1262 events. 176/1262 cut-off events. For 9471/9885 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9485 event pairs, 6 based on Foata normal form. 208/1461 useless extension candidates. Maximal degree in co-relation 4201. Up to 191 conditions per place. [2022-11-16 12:39:26,341 INFO L137 encePairwiseOnDemand]: 107/113 looper letters, 33 selfloop transitions, 8 changer transitions 0/180 dead transitions. [2022-11-16 12:39:26,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 180 transitions, 1387 flow [2022-11-16 12:39:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:26,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 460 transitions. [2022-11-16 12:39:26,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8141592920353983 [2022-11-16 12:39:26,344 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 460 transitions. [2022-11-16 12:39:26,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 460 transitions. [2022-11-16 12:39:26,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:26,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 460 transitions. [2022-11-16 12:39:26,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,348 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,348 INFO L175 Difference]: Start difference. First operand has 161 places, 180 transitions, 1307 flow. Second operand 5 states and 460 transitions. [2022-11-16 12:39:26,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 180 transitions, 1387 flow [2022-11-16 12:39:26,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 180 transitions, 1372 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:39:26,381 INFO L231 Difference]: Finished difference. Result has 160 places, 180 transitions, 1312 flow [2022-11-16 12:39:26,381 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1312, PETRI_PLACES=160, PETRI_TRANSITIONS=180} [2022-11-16 12:39:26,382 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 72 predicate places. [2022-11-16 12:39:26,382 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 180 transitions, 1312 flow [2022-11-16 12:39:26,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:26,383 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:26,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:39:26,384 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:26,384 INFO L85 PathProgramCache]: Analyzing trace with hash -722236805, now seen corresponding path program 1 times [2022-11-16 12:39:26,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:26,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395566588] [2022-11-16 12:39:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:26,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:26,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:26,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395566588] [2022-11-16 12:39:26,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395566588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:26,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68957411] [2022-11-16 12:39:26,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:26,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:26,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:26,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:26,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:39:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:26,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:39:26,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:26,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:39:26,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68957411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:26,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:39:26,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 12:39:26,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899152720] [2022-11-16 12:39:26,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:26,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:39:26,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:26,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:39:26,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:39:26,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2022-11-16 12:39:26,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 180 transitions, 1312 flow. Second operand has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:26,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:26,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2022-11-16 12:39:26,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:27,032 INFO L130 PetriNetUnfolder]: 179/1238 cut-off events. [2022-11-16 12:39:27,032 INFO L131 PetriNetUnfolder]: For 9675/10066 co-relation queries the response was YES. [2022-11-16 12:39:27,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4473 conditions, 1238 events. 179/1238 cut-off events. For 9675/10066 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9199 event pairs, 6 based on Foata normal form. 163/1392 useless extension candidates. Maximal degree in co-relation 4392. Up to 254 conditions per place. [2022-11-16 12:39:27,051 INFO L137 encePairwiseOnDemand]: 108/113 looper letters, 44 selfloop transitions, 6 changer transitions 0/189 dead transitions. [2022-11-16 12:39:27,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 189 transitions, 1478 flow [2022-11-16 12:39:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:39:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:39:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 643 transitions. [2022-11-16 12:39:27,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8128950695322377 [2022-11-16 12:39:27,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 643 transitions. [2022-11-16 12:39:27,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 643 transitions. [2022-11-16 12:39:27,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:27,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 643 transitions. [2022-11-16 12:39:27,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.85714285714286) internal successors, (643), 7 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,064 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) [2022-11-16 12:39:27,064 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) [2022-11-16 12:39:27,064 INFO L175 Difference]: Start difference. First operand has 160 places, 180 transitions, 1312 flow. Second operand 7 states and 643 transitions. [2022-11-16 12:39:27,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 189 transitions, 1478 flow [2022-11-16 12:39:27,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 189 transitions, 1466 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:27,102 INFO L231 Difference]: Finished difference. Result has 162 places, 179 transitions, 1308 flow [2022-11-16 12:39:27,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1296, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1308, PETRI_PLACES=162, PETRI_TRANSITIONS=179} [2022-11-16 12:39:27,104 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 74 predicate places. [2022-11-16 12:39:27,104 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 179 transitions, 1308 flow [2022-11-16 12:39:27,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,105 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:27,105 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:27,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:27,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 12:39:27,311 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:27,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1369007047, now seen corresponding path program 1 times [2022-11-16 12:39:27,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:27,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549015506] [2022-11-16 12:39:27,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:27,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:39:27,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:27,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549015506] [2022-11-16 12:39:27,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549015506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:27,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:27,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:39:27,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569814376] [2022-11-16 12:39:27,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:27,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:39:27,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:39:27,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:39:27,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:27,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 179 transitions, 1308 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:27,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:27,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:27,766 INFO L130 PetriNetUnfolder]: 409/1672 cut-off events. [2022-11-16 12:39:27,766 INFO L131 PetriNetUnfolder]: For 12141/12388 co-relation queries the response was YES. [2022-11-16 12:39:27,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6068 conditions, 1672 events. 409/1672 cut-off events. For 12141/12388 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 12855 event pairs, 26 based on Foata normal form. 54/1654 useless extension candidates. Maximal degree in co-relation 5988. Up to 358 conditions per place. [2022-11-16 12:39:27,796 INFO L137 encePairwiseOnDemand]: 107/113 looper letters, 66 selfloop transitions, 8 changer transitions 0/213 dead transitions. [2022-11-16 12:39:27,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 213 transitions, 1750 flow [2022-11-16 12:39:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:39:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:39:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 467 transitions. [2022-11-16 12:39:27,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8265486725663717 [2022-11-16 12:39:27,799 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 467 transitions. [2022-11-16 12:39:27,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 467 transitions. [2022-11-16 12:39:27,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:27,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 467 transitions. [2022-11-16 12:39:27,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,802 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,803 INFO L175 Difference]: Start difference. First operand has 162 places, 179 transitions, 1308 flow. Second operand 5 states and 467 transitions. [2022-11-16 12:39:27,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 213 transitions, 1750 flow [2022-11-16 12:39:27,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 213 transitions, 1739 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-16 12:39:27,839 INFO L231 Difference]: Finished difference. Result has 161 places, 179 transitions, 1317 flow [2022-11-16 12:39:27,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1317, PETRI_PLACES=161, PETRI_TRANSITIONS=179} [2022-11-16 12:39:27,840 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 73 predicate places. [2022-11-16 12:39:27,840 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 179 transitions, 1317 flow [2022-11-16 12:39:27,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:27,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:27,841 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:27,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:39:27,841 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash -510454189, now seen corresponding path program 1 times [2022-11-16 12:39:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:27,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444046108] [2022-11-16 12:39:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:27,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:27,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:27,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444046108] [2022-11-16 12:39:27,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444046108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:27,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657254102] [2022-11-16 12:39:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:27,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:27,943 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:27,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:39:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:28,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:39:28,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:28,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:39:28,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657254102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:28,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:39:28,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-16 12:39:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015484704] [2022-11-16 12:39:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:28,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:39:28,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:39:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:39:28,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:28,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 179 transitions, 1317 flow. Second operand has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:28,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:28,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:28,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:28,502 INFO L130 PetriNetUnfolder]: 394/1699 cut-off events. [2022-11-16 12:39:28,502 INFO L131 PetriNetUnfolder]: For 12845/13118 co-relation queries the response was YES. [2022-11-16 12:39:28,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6268 conditions, 1699 events. 394/1699 cut-off events. For 12845/13118 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 13206 event pairs, 50 based on Foata normal form. 52/1669 useless extension candidates. Maximal degree in co-relation 6189. Up to 343 conditions per place. [2022-11-16 12:39:28,525 INFO L137 encePairwiseOnDemand]: 109/113 looper letters, 49 selfloop transitions, 5 changer transitions 0/193 dead transitions. [2022-11-16 12:39:28,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 193 transitions, 1553 flow [2022-11-16 12:39:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:39:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:39:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2022-11-16 12:39:28,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.827433628318584 [2022-11-16 12:39:28,527 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2022-11-16 12:39:28,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2022-11-16 12:39:28,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:28,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2022-11-16 12:39:28,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:28,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:28,531 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:28,531 INFO L175 Difference]: Start difference. First operand has 161 places, 179 transitions, 1317 flow. Second operand 4 states and 374 transitions. [2022-11-16 12:39:28,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 193 transitions, 1553 flow [2022-11-16 12:39:28,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 193 transitions, 1541 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:28,575 INFO L231 Difference]: Finished difference. Result has 160 places, 178 transitions, 1311 flow [2022-11-16 12:39:28,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1311, PETRI_PLACES=160, PETRI_TRANSITIONS=178} [2022-11-16 12:39:28,576 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 72 predicate places. [2022-11-16 12:39:28,576 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 178 transitions, 1311 flow [2022-11-16 12:39:28,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:28,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:28,577 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:28,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:28,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 12:39:28,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:28,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:28,784 INFO L85 PathProgramCache]: Analyzing trace with hash 759389997, now seen corresponding path program 1 times [2022-11-16 12:39:28,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:28,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489073805] [2022-11-16 12:39:28,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:28,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:28,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:28,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489073805] [2022-11-16 12:39:28,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489073805] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:28,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452253730] [2022-11-16 12:39:28,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:28,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:28,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:28,929 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:28,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:39:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:29,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:39:29,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:29,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:39:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:29,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452253730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:39:29,303 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:39:29,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-11-16 12:39:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693631456] [2022-11-16 12:39:29,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:39:29,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:39:29,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:39:29,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:39:29,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:29,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 178 transitions, 1311 flow. Second operand has 15 states, 15 states have (on average 91.46666666666667) internal successors, (1372), 15 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:29,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:29,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:29,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:30,402 INFO L130 PetriNetUnfolder]: 441/3071 cut-off events. [2022-11-16 12:39:30,403 INFO L131 PetriNetUnfolder]: For 40928/41279 co-relation queries the response was YES. [2022-11-16 12:39:30,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9939 conditions, 3071 events. 441/3071 cut-off events. For 40928/41279 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 26297 event pairs, 7 based on Foata normal form. 232/3274 useless extension candidates. Maximal degree in co-relation 9858. Up to 437 conditions per place. [2022-11-16 12:39:30,443 INFO L137 encePairwiseOnDemand]: 105/113 looper letters, 119 selfloop transitions, 208 changer transitions 0/404 dead transitions. [2022-11-16 12:39:30,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 404 transitions, 4142 flow [2022-11-16 12:39:30,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 12:39:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 12:39:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3223 transitions. [2022-11-16 12:39:30,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8388859968766268 [2022-11-16 12:39:30,452 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3223 transitions. [2022-11-16 12:39:30,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3223 transitions. [2022-11-16 12:39:30,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:30,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3223 transitions. [2022-11-16 12:39:30,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 94.79411764705883) internal successors, (3223), 34 states have internal predecessors, (3223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:30,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 113.0) internal successors, (3955), 35 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:30,474 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 113.0) internal successors, (3955), 35 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:30,474 INFO L175 Difference]: Start difference. First operand has 160 places, 178 transitions, 1311 flow. Second operand 34 states and 3223 transitions. [2022-11-16 12:39:30,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 404 transitions, 4142 flow [2022-11-16 12:39:30,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 404 transitions, 4132 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 12:39:30,540 INFO L231 Difference]: Finished difference. Result has 213 places, 346 transitions, 4064 flow [2022-11-16 12:39:30,541 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=4064, PETRI_PLACES=213, PETRI_TRANSITIONS=346} [2022-11-16 12:39:30,542 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 125 predicate places. [2022-11-16 12:39:30,542 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 346 transitions, 4064 flow [2022-11-16 12:39:30,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 91.46666666666667) internal successors, (1372), 15 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:30,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:30,543 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:30,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:30,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:39:30,750 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:30,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:30,750 INFO L85 PathProgramCache]: Analyzing trace with hash 797311856, now seen corresponding path program 1 times [2022-11-16 12:39:30,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:30,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48041502] [2022-11-16 12:39:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:30,927 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:30,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:30,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48041502] [2022-11-16 12:39:30,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48041502] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:30,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273955124] [2022-11-16 12:39:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:30,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:30,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:30,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:30,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:39:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:31,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:39:31,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:31,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:39:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:31,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273955124] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:39:31,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:39:31,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-16 12:39:31,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245737190] [2022-11-16 12:39:31,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:39:31,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:39:31,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:39:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:39:31,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:31,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 346 transitions, 4064 flow. Second operand has 18 states, 18 states have (on average 91.72222222222223) internal successors, (1651), 18 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:31,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:31,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:31,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:33,626 INFO L130 PetriNetUnfolder]: 696/5216 cut-off events. [2022-11-16 12:39:33,627 INFO L131 PetriNetUnfolder]: For 92131/92982 co-relation queries the response was YES. [2022-11-16 12:39:33,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18596 conditions, 5216 events. 696/5216 cut-off events. For 92131/92982 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 52057 event pairs, 14 based on Foata normal form. 400/5589 useless extension candidates. Maximal degree in co-relation 18491. Up to 823 conditions per place. [2022-11-16 12:39:33,699 INFO L137 encePairwiseOnDemand]: 106/113 looper letters, 202 selfloop transitions, 405 changer transitions 0/684 dead transitions. [2022-11-16 12:39:33,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 684 transitions, 9341 flow [2022-11-16 12:39:33,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-16 12:39:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-11-16 12:39:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 5062 transitions. [2022-11-16 12:39:33,717 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.84521622975455 [2022-11-16 12:39:33,718 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 5062 transitions. [2022-11-16 12:39:33,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 5062 transitions. [2022-11-16 12:39:33,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:33,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 5062 transitions. [2022-11-16 12:39:33,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 95.50943396226415) internal successors, (5062), 53 states have internal predecessors, (5062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:33,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 113.0) internal successors, (6102), 54 states have internal predecessors, (6102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:33,750 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 113.0) internal successors, (6102), 54 states have internal predecessors, (6102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:33,751 INFO L175 Difference]: Start difference. First operand has 213 places, 346 transitions, 4064 flow. Second operand 53 states and 5062 transitions. [2022-11-16 12:39:33,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 684 transitions, 9341 flow [2022-11-16 12:39:34,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 684 transitions, 8416 flow, removed 447 selfloop flow, removed 7 redundant places. [2022-11-16 12:39:34,069 INFO L231 Difference]: Finished difference. Result has 283 places, 542 transitions, 7402 flow [2022-11-16 12:39:34,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=3365, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=7402, PETRI_PLACES=283, PETRI_TRANSITIONS=542} [2022-11-16 12:39:34,071 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 195 predicate places. [2022-11-16 12:39:34,071 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 542 transitions, 7402 flow [2022-11-16 12:39:34,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 91.72222222222223) internal successors, (1651), 18 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:34,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:34,073 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:34,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:34,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:34,279 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:34,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2103880917, now seen corresponding path program 1 times [2022-11-16 12:39:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:34,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216661727] [2022-11-16 12:39:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:34,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:34,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216661727] [2022-11-16 12:39:34,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216661727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:34,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076542298] [2022-11-16 12:39:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:34,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:34,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:34,482 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:34,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:39:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:34,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:39:34,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:34,705 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:34,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:39:34,947 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:34,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076542298] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:39:34,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:39:34,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 12:39:34,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048002827] [2022-11-16 12:39:34,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:39:34,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:39:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:34,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:39:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:39:34,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:34,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 542 transitions, 7402 flow. Second operand has 19 states, 19 states have (on average 91.57894736842105) internal successors, (1740), 19 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:34,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:34,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:34,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:38,818 INFO L130 PetriNetUnfolder]: 1165/8264 cut-off events. [2022-11-16 12:39:38,818 INFO L131 PetriNetUnfolder]: For 273085/274755 co-relation queries the response was YES. [2022-11-16 12:39:38,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33217 conditions, 8264 events. 1165/8264 cut-off events. For 273085/274755 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 93316 event pairs, 9 based on Foata normal form. 746/8962 useless extension candidates. Maximal degree in co-relation 33086. Up to 1277 conditions per place. [2022-11-16 12:39:38,946 INFO L137 encePairwiseOnDemand]: 105/113 looper letters, 243 selfloop transitions, 743 changer transitions 0/1063 dead transitions. [2022-11-16 12:39:38,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 1063 transitions, 17145 flow [2022-11-16 12:39:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-16 12:39:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2022-11-16 12:39:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5813 transitions. [2022-11-16 12:39:38,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8433193094443638 [2022-11-16 12:39:38,956 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5813 transitions. [2022-11-16 12:39:38,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5813 transitions. [2022-11-16 12:39:38,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:38,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5813 transitions. [2022-11-16 12:39:38,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 95.29508196721312) internal successors, (5813), 61 states have internal predecessors, (5813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:38,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 113.0) internal successors, (7006), 62 states have internal predecessors, (7006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:39,112 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 113.0) internal successors, (7006), 62 states have internal predecessors, (7006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:39,112 INFO L175 Difference]: Start difference. First operand has 283 places, 542 transitions, 7402 flow. Second operand 61 states and 5813 transitions. [2022-11-16 12:39:39,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 1063 transitions, 17145 flow [2022-11-16 12:39:39,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 1063 transitions, 15039 flow, removed 1015 selfloop flow, removed 14 redundant places. [2022-11-16 12:39:39,939 INFO L231 Difference]: Finished difference. Result has 357 places, 909 transitions, 14009 flow [2022-11-16 12:39:39,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=6392, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=417, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=14009, PETRI_PLACES=357, PETRI_TRANSITIONS=909} [2022-11-16 12:39:39,941 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 269 predicate places. [2022-11-16 12:39:39,941 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 909 transitions, 14009 flow [2022-11-16 12:39:39,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 91.57894736842105) internal successors, (1740), 19 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:39,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:39,942 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:39,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:39:40,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:39:40,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash 735003692, now seen corresponding path program 1 times [2022-11-16 12:39:40,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:40,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413449588] [2022-11-16 12:39:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:40,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:40,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:40,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413449588] [2022-11-16 12:39:40,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413449588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:40,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901691455] [2022-11-16 12:39:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:40,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:40,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:40,476 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:40,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 12:39:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:40,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:39:40,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:39:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:40,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:39:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:41,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901691455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:39:41,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:39:41,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2022-11-16 12:39:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520309199] [2022-11-16 12:39:41,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:39:41,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-16 12:39:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-16 12:39:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2022-11-16 12:39:41,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:39:41,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 909 transitions, 14009 flow. Second operand has 30 states, 30 states have (on average 91.7) internal successors, (2751), 30 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:41,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:41,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:39:41,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:39:54,581 INFO L130 PetriNetUnfolder]: 3072/23701 cut-off events. [2022-11-16 12:39:54,581 INFO L131 PetriNetUnfolder]: For 1955707/1959732 co-relation queries the response was YES. [2022-11-16 12:39:55,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96477 conditions, 23701 events. 3072/23701 cut-off events. For 1955707/1959732 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 313873 event pairs, 19 based on Foata normal form. 2465/26095 useless extension candidates. Maximal degree in co-relation 96317. Up to 3959 conditions per place. [2022-11-16 12:39:55,169 INFO L137 encePairwiseOnDemand]: 106/113 looper letters, 533 selfloop transitions, 2059 changer transitions 0/2669 dead transitions. [2022-11-16 12:39:55,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 2669 transitions, 49340 flow [2022-11-16 12:39:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-11-16 12:39:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2022-11-16 12:39:55,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 13156 transitions. [2022-11-16 12:39:55,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8498159033654157 [2022-11-16 12:39:55,190 INFO L72 ComplementDD]: Start complementDD. Operand 137 states and 13156 transitions. [2022-11-16 12:39:55,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 13156 transitions. [2022-11-16 12:39:55,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:39:55,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 137 states and 13156 transitions. [2022-11-16 12:39:55,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 138 states, 137 states have (on average 96.02919708029196) internal successors, (13156), 137 states have internal predecessors, (13156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:55,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 138 states, 138 states have (on average 113.0) internal successors, (15594), 138 states have internal predecessors, (15594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:55,246 INFO L81 ComplementDD]: Finished complementDD. Result has 138 states, 138 states have (on average 113.0) internal successors, (15594), 138 states have internal predecessors, (15594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:55,247 INFO L175 Difference]: Start difference. First operand has 357 places, 909 transitions, 14009 flow. Second operand 137 states and 13156 transitions. [2022-11-16 12:39:55,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 2669 transitions, 49340 flow [2022-11-16 12:39:58,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 2669 transitions, 46884 flow, removed 1182 selfloop flow, removed 13 redundant places. [2022-11-16 12:39:58,848 INFO L231 Difference]: Finished difference. Result has 563 places, 2294 transitions, 44160 flow [2022-11-16 12:39:58,849 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=13165, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=783, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=44160, PETRI_PLACES=563, PETRI_TRANSITIONS=2294} [2022-11-16 12:39:58,849 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 475 predicate places. [2022-11-16 12:39:58,850 INFO L495 AbstractCegarLoop]: Abstraction has has 563 places, 2294 transitions, 44160 flow [2022-11-16 12:39:58,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 91.7) internal successors, (2751), 30 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:39:58,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:58,851 INFO L209 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:58,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-16 12:39:59,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:59,059 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-16 12:39:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:59,060 INFO L85 PathProgramCache]: Analyzing trace with hash -41838073, now seen corresponding path program 2 times [2022-11-16 12:39:59,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:59,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640520837] [2022-11-16 12:39:59,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:59,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:59,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640520837] [2022-11-16 12:39:59,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640520837] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:39:59,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067954953] [2022-11-16 12:39:59,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:39:59,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:39:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:59,683 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:39:59,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc4c4715-b26d-4315-8e99-03535a65cf94/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 12:39:59,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:39:59,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:39:59,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:39:59,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:40:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:00,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:40:00,632 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:00,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067954953] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:40:00,632 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:40:00,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-16 12:40:00,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526151594] [2022-11-16 12:40:00,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:40:00,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-16 12:40:00,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:00,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-16 12:40:00,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 12:40:00,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 113 [2022-11-16 12:40:00,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 2294 transitions, 44160 flow. Second operand has 35 states, 35 states have (on average 91.31428571428572) internal successors, (3196), 35 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:00,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:00,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 113 [2022-11-16 12:40:00,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand