./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro --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 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc --- 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-8393723 [2022-11-18 20:52:40,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:52:40,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:52:40,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:52:40,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:52:40,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:52:40,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:52:40,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:52:40,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:52:40,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:52:40,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:52:40,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:52:40,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:52:40,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:52:40,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:52:40,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:52:40,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:52:40,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:52:40,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:52:40,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:52:40,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:52:40,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:52:40,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:52:40,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:52:40,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:52:40,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:52:40,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:52:40,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:52:40,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:52:40,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:52:40,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:52:40,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:52:40,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:52:40,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:52:40,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:52:40,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:52:40,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:52:40,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:52:40,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:52:40,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:52:40,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:52:40,449 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:52:40,505 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:52:40,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:52:40,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:52:40,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:52:40,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:52:40,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:52:40,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:52:40,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:52:40,509 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:52:40,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:52:40,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:52:40,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:52:40,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:52:40,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:52:40,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:52:40,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:52:40,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:52:40,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:52:40,513 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:52:40,514 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:52:40,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:52:40,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:52:40,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:52:40,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:52:40,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:52:40,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:52:40,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:40,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:52:40,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:52:40,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:52:40,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:52:40,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:52:40,519 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:52:40,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:52:40,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:52:40,520 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_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc [2022-11-18 20:52:40,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:52:40,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:52:40,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:52:40,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:52:40,937 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:52:40,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2022-11-18 20:52:41,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/data/61b380881/e3bb476834f84001a4dea4787df740b8/FLAGe094d638c [2022-11-18 20:52:41,812 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:52:41,814 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2022-11-18 20:52:41,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/data/61b380881/e3bb476834f84001a4dea4787df740b8/FLAGe094d638c [2022-11-18 20:52:42,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/data/61b380881/e3bb476834f84001a4dea4787df740b8 [2022-11-18 20:52:42,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:52:42,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:52:42,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:42,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:52:42,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:52:42,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:42" (1/1) ... [2022-11-18 20:52:42,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a19eda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:42, skipping insertion in model container [2022-11-18 20:52:42,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:42" (1/1) ... [2022-11-18 20:52:42,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:52:42,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:52:42,799 WARN L234 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_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i[41322,41335] [2022-11-18 20:52:42,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:42,850 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:52:42,936 WARN L234 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_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i[41322,41335] [2022-11-18 20:52:42,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:43,017 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:52:43,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43 WrapperNode [2022-11-18 20:52:43,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:43,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:43,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:52:43,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:52:43,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,092 INFO L138 Inliner]: procedures = 270, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-11-18 20:52:43,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:43,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:52:43,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:52:43,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:52:43,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,132 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:52:43,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:52:43,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:52:43,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:52:43,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (1/1) ... [2022-11-18 20:52:43,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:43,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:43,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:52:43,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:52:43,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:52:43,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:52:43,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:52:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:52:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:52:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:52:43,235 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:52:43,235 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:52:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:52:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:52:43,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:52:43,238 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:52:43,470 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:52:43,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:52:43,855 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:52:43,865 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:52:43,865 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-18 20:52:43,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:43 BoogieIcfgContainer [2022-11-18 20:52:43,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:52:43,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:52:43,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:52:43,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:52:43,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:52:42" (1/3) ... [2022-11-18 20:52:43,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0d8096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:43, skipping insertion in model container [2022-11-18 20:52:43,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:43" (2/3) ... [2022-11-18 20:52:43,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0d8096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:43, skipping insertion in model container [2022-11-18 20:52:43,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:43" (3/3) ... [2022-11-18 20:52:43,881 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2022-11-18 20:52:43,892 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:52:43,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:52:43,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:52:43,905 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:52:44,024 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:52:44,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 139 transitions, 286 flow [2022-11-18 20:52:44,192 INFO L130 PetriNetUnfolder]: 23/183 cut-off events. [2022-11-18 20:52:44,193 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:52:44,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 183 events. 23/183 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 422 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 89. Up to 6 conditions per place. [2022-11-18 20:52:44,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 139 transitions, 286 flow [2022-11-18 20:52:44,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 136 transitions, 280 flow [2022-11-18 20:52:44,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:44,238 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;@41b2709d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:44,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-18 20:52:44,281 INFO L130 PetriNetUnfolder]: 5/75 cut-off events. [2022-11-18 20:52:44,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:44,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:44,283 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:44,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:52:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1570317978, now seen corresponding path program 1 times [2022-11-18 20:52:44,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:44,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686653055] [2022-11-18 20:52:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:44,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:44,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686653055] [2022-11-18 20:52:44,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686653055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:44,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:44,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170708831] [2022-11-18 20:52:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:44,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:44,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:44,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:44,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-11-18 20:52:44,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 136 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:44,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:44,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-11-18 20:52:44,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:45,065 INFO L130 PetriNetUnfolder]: 3/126 cut-off events. [2022-11-18 20:52:45,065 INFO L131 PetriNetUnfolder]: For 3/12 co-relation queries the response was YES. [2022-11-18 20:52:45,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 126 events. 3/126 cut-off events. For 3/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 159 event pairs, 0 based on Foata normal form. 40/155 useless extension candidates. Maximal degree in co-relation 83. Up to 7 conditions per place. [2022-11-18 20:52:45,070 INFO L137 encePairwiseOnDemand]: 121/139 looper letters, 10 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2022-11-18 20:52:45,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 124 transitions, 284 flow [2022-11-18 20:52:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2022-11-18 20:52:45,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8805755395683453 [2022-11-18 20:52:45,095 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2022-11-18 20:52:45,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2022-11-18 20:52:45,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:45,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2022-11-18 20:52:45,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,123 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,125 INFO L175 Difference]: Start difference. First operand has 125 places, 136 transitions, 280 flow. Second operand 5 states and 612 transitions. [2022-11-18 20:52:45,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 124 transitions, 284 flow [2022-11-18 20:52:45,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 124 transitions, 284 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:52:45,141 INFO L231 Difference]: Finished difference. Result has 127 places, 122 transitions, 264 flow [2022-11-18 20:52:45,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=127, PETRI_TRANSITIONS=122} [2022-11-18 20:52:45,148 INFO L288 CegarLoopForPetriNet]: 125 programPoint places, 2 predicate places. [2022-11-18 20:52:45,149 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 122 transitions, 264 flow [2022-11-18 20:52:45,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:45,151 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] [2022-11-18 20:52:45,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:52:45,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:52:45,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1641766905, now seen corresponding path program 1 times [2022-11-18 20:52:45,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:45,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856556106] [2022-11-18 20:52:45,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:45,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:45,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:45,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856556106] [2022-11-18 20:52:45,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856556106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:45,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:45,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:45,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092654449] [2022-11-18 20:52:45,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:45,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:45,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:45,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:45,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:45,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-11-18 20:52:45,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 122 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 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) [2022-11-18 20:52:45,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:45,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-11-18 20:52:45,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:45,447 INFO L130 PetriNetUnfolder]: 10/153 cut-off events. [2022-11-18 20:52:45,447 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-11-18 20:52:45,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 153 events. 10/153 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 354 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 129. Up to 11 conditions per place. [2022-11-18 20:52:45,480 INFO L137 encePairwiseOnDemand]: 133/139 looper letters, 10 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2022-11-18 20:52:45,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 123 transitions, 294 flow [2022-11-18 20:52:45,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 586 transitions. [2022-11-18 20:52:45,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8431654676258993 [2022-11-18 20:52:45,484 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 586 transitions. [2022-11-18 20:52:45,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 586 transitions. [2022-11-18 20:52:45,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:45,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 586 transitions. [2022-11-18 20:52:45,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,489 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,490 INFO L175 Difference]: Start difference. First operand has 127 places, 122 transitions, 264 flow. Second operand 5 states and 586 transitions. [2022-11-18 20:52:45,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 123 transitions, 294 flow [2022-11-18 20:52:45,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:52:45,498 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 260 flow [2022-11-18 20:52:45,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2022-11-18 20:52:45,500 INFO L288 CegarLoopForPetriNet]: 125 programPoint places, 0 predicate places. [2022-11-18 20:52:45,501 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 260 flow [2022-11-18 20:52:45,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 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) [2022-11-18 20:52:45,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:45,503 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] [2022-11-18 20:52:45,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:52:45,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:52:45,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:45,510 INFO L85 PathProgramCache]: Analyzing trace with hash -2123349743, now seen corresponding path program 1 times [2022-11-18 20:52:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:45,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239434403] [2022-11-18 20:52:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:52:45,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:52:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:52:45,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:52:45,667 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:52:45,669 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-11-18 20:52:45,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-11-18 20:52:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-11-18 20:52:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-11-18 20:52:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-11-18 20:52:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-11-18 20:52:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-11-18 20:52:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-11-18 20:52:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-11-18 20:52:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-11-18 20:52:45,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-11-18 20:52:45,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-11-18 20:52:45,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-11-18 20:52:45,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:52:45,676 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 20:52:45,680 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:52:45,680 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 20:52:45,712 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:52:45,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 177 transitions, 372 flow [2022-11-18 20:52:45,775 INFO L130 PetriNetUnfolder]: 40/302 cut-off events. [2022-11-18 20:52:45,776 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:52:45,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 302 events. 40/302 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 888 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 185. Up to 9 conditions per place. [2022-11-18 20:52:45,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 177 transitions, 372 flow [2022-11-18 20:52:45,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 177 transitions, 372 flow [2022-11-18 20:52:45,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:45,787 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;@41b2709d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:45,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-18 20:52:45,799 INFO L130 PetriNetUnfolder]: 5/75 cut-off events. [2022-11-18 20:52:45,799 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:45,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:45,800 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] [2022-11-18 20:52:45,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:45,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:45,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1582851446, now seen corresponding path program 1 times [2022-11-18 20:52:45,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:45,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242894645] [2022-11-18 20:52:45,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:45,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:45,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:45,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242894645] [2022-11-18 20:52:45,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242894645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:45,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:45,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:45,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467614156] [2022-11-18 20:52:45,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:45,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:45,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:45,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:45,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:45,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 177 [2022-11-18 20:52:45,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 177 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:45,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 177 [2022-11-18 20:52:45,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:46,048 INFO L130 PetriNetUnfolder]: 8/244 cut-off events. [2022-11-18 20:52:46,049 INFO L131 PetriNetUnfolder]: For 34/104 co-relation queries the response was YES. [2022-11-18 20:52:46,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 244 events. 8/244 cut-off events. For 34/104 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 631 event pairs, 0 based on Foata normal form. 124/338 useless extension candidates. Maximal degree in co-relation 159. Up to 21 conditions per place. [2022-11-18 20:52:46,061 INFO L137 encePairwiseOnDemand]: 153/177 looper letters, 19 selfloop transitions, 4 changer transitions 0/166 dead transitions. [2022-11-18 20:52:46,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 166 transitions, 396 flow [2022-11-18 20:52:46,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:46,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 777 transitions. [2022-11-18 20:52:46,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779661016949153 [2022-11-18 20:52:46,067 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 777 transitions. [2022-11-18 20:52:46,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 777 transitions. [2022-11-18 20:52:46,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:46,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 777 transitions. [2022-11-18 20:52:46,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.4) internal successors, (777), 5 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,076 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,076 INFO L175 Difference]: Start difference. First operand has 160 places, 177 transitions, 372 flow. Second operand 5 states and 777 transitions. [2022-11-18 20:52:46,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 166 transitions, 396 flow [2022-11-18 20:52:46,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 166 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:52:46,088 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 368 flow [2022-11-18 20:52:46,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=368, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2022-11-18 20:52:46,093 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 6 predicate places. [2022-11-18 20:52:46,094 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 368 flow [2022-11-18 20:52:46,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,100 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:46,100 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] [2022-11-18 20:52:46,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:52:46,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:46,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1663177565, now seen corresponding path program 1 times [2022-11-18 20:52:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274149671] [2022-11-18 20:52:46,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:46,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:46,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:46,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274149671] [2022-11-18 20:52:46,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274149671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:46,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:46,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175306010] [2022-11-18 20:52:46,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:46,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:46,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:46,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:46,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:46,373 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 177 [2022-11-18 20:52:46,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 368 flow. Second operand has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:46,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 177 [2022-11-18 20:52:46,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:46,829 INFO L130 PetriNetUnfolder]: 176/1037 cut-off events. [2022-11-18 20:52:46,829 INFO L131 PetriNetUnfolder]: For 113/132 co-relation queries the response was YES. [2022-11-18 20:52:46,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1037 events. 176/1037 cut-off events. For 113/132 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7437 event pairs, 43 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1362. Up to 207 conditions per place. [2022-11-18 20:52:46,845 INFO L137 encePairwiseOnDemand]: 170/177 looper letters, 36 selfloop transitions, 6 changer transitions 0/185 dead transitions. [2022-11-18 20:52:46,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 185 transitions, 516 flow [2022-11-18 20:52:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 746 transitions. [2022-11-18 20:52:46,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8429378531073446 [2022-11-18 20:52:46,850 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 746 transitions. [2022-11-18 20:52:46,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 746 transitions. [2022-11-18 20:52:46,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:46,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 746 transitions. [2022-11-18 20:52:46,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,858 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,858 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 368 flow. Second operand 5 states and 746 transitions. [2022-11-18 20:52:46,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 185 transitions, 516 flow [2022-11-18 20:52:46,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 185 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:52:46,867 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 415 flow [2022-11-18 20:52:46,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=415, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2022-11-18 20:52:46,870 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 12 predicate places. [2022-11-18 20:52:46,870 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 415 flow [2022-11-18 20:52:46,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:46,873 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 20:52:46,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:52:46,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:46,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:46,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1635253518, now seen corresponding path program 1 times [2022-11-18 20:52:46,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:46,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220844148] [2022-11-18 20:52:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:46,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:52:47,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:47,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220844148] [2022-11-18 20:52:47,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220844148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:47,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:47,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:47,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23723257] [2022-11-18 20:52:47,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:47,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:47,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:47,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:47,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 177 [2022-11-18 20:52:47,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 415 flow. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:47,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 177 [2022-11-18 20:52:47,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:47,192 INFO L130 PetriNetUnfolder]: 11/370 cut-off events. [2022-11-18 20:52:47,192 INFO L131 PetriNetUnfolder]: For 74/181 co-relation queries the response was YES. [2022-11-18 20:52:47,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 370 events. 11/370 cut-off events. For 74/181 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1284 event pairs, 0 based on Foata normal form. 16/346 useless extension candidates. Maximal degree in co-relation 301. Up to 16 conditions per place. [2022-11-18 20:52:47,197 INFO L137 encePairwiseOnDemand]: 171/177 looper letters, 11 selfloop transitions, 8 changer transitions 0/167 dead transitions. [2022-11-18 20:52:47,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 167 transitions, 451 flow [2022-11-18 20:52:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 732 transitions. [2022-11-18 20:52:47,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8271186440677966 [2022-11-18 20:52:47,201 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 732 transitions. [2022-11-18 20:52:47,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 732 transitions. [2022-11-18 20:52:47,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:47,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 732 transitions. [2022-11-18 20:52:47,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,210 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,210 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 415 flow. Second operand 5 states and 732 transitions. [2022-11-18 20:52:47,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 167 transitions, 451 flow [2022-11-18 20:52:47,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 167 transitions, 448 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:52:47,217 INFO L231 Difference]: Finished difference. Result has 175 places, 167 transitions, 432 flow [2022-11-18 20:52:47,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=432, PETRI_PLACES=175, PETRI_TRANSITIONS=167} [2022-11-18 20:52:47,222 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 15 predicate places. [2022-11-18 20:52:47,222 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 167 transitions, 432 flow [2022-11-18 20:52:47,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,223 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:47,223 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] [2022-11-18 20:52:47,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:52:47,225 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:47,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:47,226 INFO L85 PathProgramCache]: Analyzing trace with hash 846748951, now seen corresponding path program 1 times [2022-11-18 20:52:47,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:47,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973573035] [2022-11-18 20:52:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:47,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:47,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:47,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973573035] [2022-11-18 20:52:47,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973573035] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:47,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481434972] [2022-11-18 20:52:47,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:47,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:47,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:47,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:47,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:52:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:47,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:52:47,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:47,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:47,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481434972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:47,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:52:47,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:52:47,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461614218] [2022-11-18 20:52:47,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:47,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:47,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:47,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:47,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:52:47,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 177 [2022-11-18 20:52:47,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 167 transitions, 432 flow. Second operand has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:47,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 177 [2022-11-18 20:52:47,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:47,941 INFO L130 PetriNetUnfolder]: 11/369 cut-off events. [2022-11-18 20:52:47,941 INFO L131 PetriNetUnfolder]: For 82/181 co-relation queries the response was YES. [2022-11-18 20:52:47,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 369 events. 11/369 cut-off events. For 82/181 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1279 event pairs, 0 based on Foata normal form. 9/338 useless extension candidates. Maximal degree in co-relation 302. Up to 19 conditions per place. [2022-11-18 20:52:47,947 INFO L137 encePairwiseOnDemand]: 172/177 looper letters, 15 selfloop transitions, 6 changer transitions 0/169 dead transitions. [2022-11-18 20:52:47,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 169 transitions, 476 flow [2022-11-18 20:52:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:52:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:52:47,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1023 transitions. [2022-11-18 20:52:47,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256658595641646 [2022-11-18 20:52:47,951 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1023 transitions. [2022-11-18 20:52:47,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1023 transitions. [2022-11-18 20:52:47,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:47,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1023 transitions. [2022-11-18 20:52:47,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.14285714285714) internal successors, (1023), 7 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,960 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,960 INFO L175 Difference]: Start difference. First operand has 175 places, 167 transitions, 432 flow. Second operand 7 states and 1023 transitions. [2022-11-18 20:52:47,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 169 transitions, 476 flow [2022-11-18 20:52:47,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 169 transitions, 464 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:52:47,966 INFO L231 Difference]: Finished difference. Result has 177 places, 166 transitions, 428 flow [2022-11-18 20:52:47,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=428, PETRI_PLACES=177, PETRI_TRANSITIONS=166} [2022-11-18 20:52:47,968 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 17 predicate places. [2022-11-18 20:52:47,968 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 166 transitions, 428 flow [2022-11-18 20:52:47,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:47,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:47,969 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:47,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:48,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:48,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash -639905302, now seen corresponding path program 1 times [2022-11-18 20:52:48,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:48,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668210472] [2022-11-18 20:52:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:48,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:48,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:48,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668210472] [2022-11-18 20:52:48,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668210472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:48,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:48,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:52:48,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979366599] [2022-11-18 20:52:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:48,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:48,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 177 [2022-11-18 20:52:48,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 166 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:48,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:48,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 177 [2022-11-18 20:52:48,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:48,902 INFO L130 PetriNetUnfolder]: 361/1814 cut-off events. [2022-11-18 20:52:48,903 INFO L131 PetriNetUnfolder]: For 392/449 co-relation queries the response was YES. [2022-11-18 20:52:48,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2747 conditions, 1814 events. 361/1814 cut-off events. For 392/449 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 15150 event pairs, 58 based on Foata normal form. 5/1603 useless extension candidates. Maximal degree in co-relation 1367. Up to 237 conditions per place. [2022-11-18 20:52:48,929 INFO L137 encePairwiseOnDemand]: 166/177 looper letters, 60 selfloop transitions, 19 changer transitions 0/216 dead transitions. [2022-11-18 20:52:48,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 216 transitions, 736 flow [2022-11-18 20:52:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:52:48,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:52:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1296 transitions. [2022-11-18 20:52:48,934 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8135593220338984 [2022-11-18 20:52:48,934 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1296 transitions. [2022-11-18 20:52:48,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1296 transitions. [2022-11-18 20:52:48,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:48,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1296 transitions. [2022-11-18 20:52:48,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 144.0) internal successors, (1296), 9 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:48,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:48,944 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:48,944 INFO L175 Difference]: Start difference. First operand has 177 places, 166 transitions, 428 flow. Second operand 9 states and 1296 transitions. [2022-11-18 20:52:48,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 216 transitions, 736 flow [2022-11-18 20:52:48,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 216 transitions, 725 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-18 20:52:48,952 INFO L231 Difference]: Finished difference. Result has 186 places, 178 transitions, 543 flow [2022-11-18 20:52:48,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=543, PETRI_PLACES=186, PETRI_TRANSITIONS=178} [2022-11-18 20:52:48,953 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 26 predicate places. [2022-11-18 20:52:48,953 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 178 transitions, 543 flow [2022-11-18 20:52:48,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:48,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:48,954 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:48,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:52:48,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:48,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:48,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1637772693, now seen corresponding path program 1 times [2022-11-18 20:52:48,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:48,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764328700] [2022-11-18 20:52:48,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:48,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:49,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:49,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764328700] [2022-11-18 20:52:49,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764328700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:49,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:49,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:52:49,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505014301] [2022-11-18 20:52:49,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:49,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:49,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:49,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:49,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:49,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 177 [2022-11-18 20:52:49,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 178 transitions, 543 flow. Second operand has 6 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:49,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:49,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 177 [2022-11-18 20:52:49,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:49,699 INFO L130 PetriNetUnfolder]: 324/1554 cut-off events. [2022-11-18 20:52:49,699 INFO L131 PetriNetUnfolder]: For 953/1015 co-relation queries the response was YES. [2022-11-18 20:52:49,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2844 conditions, 1554 events. 324/1554 cut-off events. For 953/1015 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 12636 event pairs, 64 based on Foata normal form. 36/1451 useless extension candidates. Maximal degree in co-relation 2528. Up to 272 conditions per place. [2022-11-18 20:52:49,727 INFO L137 encePairwiseOnDemand]: 166/177 looper letters, 65 selfloop transitions, 19 changer transitions 0/221 dead transitions. [2022-11-18 20:52:49,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 221 transitions, 878 flow [2022-11-18 20:52:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:52:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:52:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1298 transitions. [2022-11-18 20:52:49,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-11-18 20:52:49,732 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1298 transitions. [2022-11-18 20:52:49,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1298 transitions. [2022-11-18 20:52:49,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:49,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1298 transitions. [2022-11-18 20:52:49,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 144.22222222222223) internal successors, (1298), 9 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:49,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:49,741 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 177.0) internal successors, (1770), 10 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:49,741 INFO L175 Difference]: Start difference. First operand has 186 places, 178 transitions, 543 flow. Second operand 9 states and 1298 transitions. [2022-11-18 20:52:49,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 221 transitions, 878 flow [2022-11-18 20:52:49,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 221 transitions, 837 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-11-18 20:52:49,752 INFO L231 Difference]: Finished difference. Result has 192 places, 182 transitions, 590 flow [2022-11-18 20:52:49,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=590, PETRI_PLACES=192, PETRI_TRANSITIONS=182} [2022-11-18 20:52:49,754 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 32 predicate places. [2022-11-18 20:52:49,754 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 182 transitions, 590 flow [2022-11-18 20:52:49,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:49,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:49,755 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, 1, 1, 1, 1, 1] [2022-11-18 20:52:49,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:52:49,756 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:49,756 INFO L85 PathProgramCache]: Analyzing trace with hash -87205435, now seen corresponding path program 1 times [2022-11-18 20:52:49,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:49,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996538972] [2022-11-18 20:52:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:49,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:52:49,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:49,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996538972] [2022-11-18 20:52:49,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996538972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:49,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:49,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:49,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501467878] [2022-11-18 20:52:49,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:49,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:49,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:49,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:49,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:49,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 177 [2022-11-18 20:52:49,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 182 transitions, 590 flow. Second operand has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 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) [2022-11-18 20:52:49,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:49,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 177 [2022-11-18 20:52:49,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:50,384 INFO L130 PetriNetUnfolder]: 299/1948 cut-off events. [2022-11-18 20:52:50,385 INFO L131 PetriNetUnfolder]: For 1213/1287 co-relation queries the response was YES. [2022-11-18 20:52:50,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3341 conditions, 1948 events. 299/1948 cut-off events. For 1213/1287 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16936 event pairs, 127 based on Foata normal form. 24/1750 useless extension candidates. Maximal degree in co-relation 2569. Up to 369 conditions per place. [2022-11-18 20:52:50,412 INFO L137 encePairwiseOnDemand]: 170/177 looper letters, 55 selfloop transitions, 7 changer transitions 0/208 dead transitions. [2022-11-18 20:52:50,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 208 transitions, 852 flow [2022-11-18 20:52:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 744 transitions. [2022-11-18 20:52:50,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8406779661016949 [2022-11-18 20:52:50,415 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 744 transitions. [2022-11-18 20:52:50,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 744 transitions. [2022-11-18 20:52:50,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:50,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 744 transitions. [2022-11-18 20:52:50,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,422 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,422 INFO L175 Difference]: Start difference. First operand has 192 places, 182 transitions, 590 flow. Second operand 5 states and 744 transitions. [2022-11-18 20:52:50,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 208 transitions, 852 flow [2022-11-18 20:52:50,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 208 transitions, 824 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-18 20:52:50,433 INFO L231 Difference]: Finished difference. Result has 195 places, 185 transitions, 620 flow [2022-11-18 20:52:50,433 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=620, PETRI_PLACES=195, PETRI_TRANSITIONS=185} [2022-11-18 20:52:50,434 INFO L288 CegarLoopForPetriNet]: 160 programPoint places, 35 predicate places. [2022-11-18 20:52:50,435 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 185 transitions, 620 flow [2022-11-18 20:52:50,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 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) [2022-11-18 20:52:50,435 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:50,436 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 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] [2022-11-18 20:52:50,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:52:50,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-11-18 20:52:50,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:50,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1975469889, now seen corresponding path program 1 times [2022-11-18 20:52:50,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:50,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637389361] [2022-11-18 20:52:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:52:50,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:52:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:52:50,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:52:50,483 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:52:50,483 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-18 20:52:50,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-11-18 20:52:50,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-11-18 20:52:50,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-11-18 20:52:50,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-11-18 20:52:50,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-11-18 20:52:50,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-11-18 20:52:50,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-11-18 20:52:50,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-11-18 20:52:50,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-11-18 20:52:50,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-11-18 20:52:50,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-11-18 20:52:50,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-11-18 20:52:50,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-11-18 20:52:50,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-11-18 20:52:50,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-11-18 20:52:50,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-11-18 20:52:50,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:52:50,488 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:50,488 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:52:50,489 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 20:52:50,518 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:52:50,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 215 transitions, 460 flow [2022-11-18 20:52:50,597 INFO L130 PetriNetUnfolder]: 62/462 cut-off events. [2022-11-18 20:52:50,598 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-18 20:52:50,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 462 events. 62/462 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1561 event pairs, 1 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 310. Up to 16 conditions per place. [2022-11-18 20:52:50,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 215 transitions, 460 flow [2022-11-18 20:52:50,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 215 transitions, 460 flow [2022-11-18 20:52:50,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:50,611 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;@41b2709d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:50,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-18 20:52:50,619 INFO L130 PetriNetUnfolder]: 5/75 cut-off events. [2022-11-18 20:52:50,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:50,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:50,619 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] [2022-11-18 20:52:50,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:52:50,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1258098094, now seen corresponding path program 1 times [2022-11-18 20:52:50,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:50,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202171711] [2022-11-18 20:52:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:50,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:50,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:50,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202171711] [2022-11-18 20:52:50,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202171711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:50,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:50,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829823547] [2022-11-18 20:52:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:50,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:50,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:50,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:50,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:50,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2022-11-18 20:52:50,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 215 transitions, 460 flow. Second operand has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:50,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2022-11-18 20:52:50,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:50,891 INFO L130 PetriNetUnfolder]: 16/389 cut-off events. [2022-11-18 20:52:50,891 INFO L131 PetriNetUnfolder]: For 63/159 co-relation queries the response was YES. [2022-11-18 20:52:50,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 389 events. 16/389 cut-off events. For 63/159 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1296 event pairs, 1 based on Foata normal form. 306/642 useless extension candidates. Maximal degree in co-relation 287. Up to 40 conditions per place. [2022-11-18 20:52:50,896 INFO L137 encePairwiseOnDemand]: 185/215 looper letters, 21 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2022-11-18 20:52:50,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 198 transitions, 476 flow [2022-11-18 20:52:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 935 transitions. [2022-11-18 20:52:50,900 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8697674418604651 [2022-11-18 20:52:50,900 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 935 transitions. [2022-11-18 20:52:50,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 935 transitions. [2022-11-18 20:52:50,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:50,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 935 transitions. [2022-11-18 20:52:50,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,907 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,908 INFO L175 Difference]: Start difference. First operand has 193 places, 215 transitions, 460 flow. Second operand 5 states and 935 transitions. [2022-11-18 20:52:50,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 198 transitions, 476 flow [2022-11-18 20:52:50,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 198 transitions, 476 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:52:50,913 INFO L231 Difference]: Finished difference. Result has 199 places, 194 transitions, 444 flow [2022-11-18 20:52:50,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=444, PETRI_PLACES=199, PETRI_TRANSITIONS=194} [2022-11-18 20:52:50,914 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 6 predicate places. [2022-11-18 20:52:50,914 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 194 transitions, 444 flow [2022-11-18 20:52:50,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:50,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:50,915 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] [2022-11-18 20:52:50,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:52:50,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:52:50,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1206974017, now seen corresponding path program 1 times [2022-11-18 20:52:50,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:50,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803713371] [2022-11-18 20:52:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:50,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:50,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:50,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803713371] [2022-11-18 20:52:50,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803713371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:50,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:50,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:50,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275639812] [2022-11-18 20:52:50,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:50,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:50,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:51,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2022-11-18 20:52:51,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 194 transitions, 444 flow. Second operand has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:51,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:51,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2022-11-18 20:52:51,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:53,121 INFO L130 PetriNetUnfolder]: 1893/8380 cut-off events. [2022-11-18 20:52:53,121 INFO L131 PetriNetUnfolder]: For 1247/1416 co-relation queries the response was YES. [2022-11-18 20:52:53,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11837 conditions, 8380 events. 1893/8380 cut-off events. For 1247/1416 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 96002 event pairs, 779 based on Foata normal form. 0/7279 useless extension candidates. Maximal degree in co-relation 11766. Up to 1996 conditions per place. [2022-11-18 20:52:53,274 INFO L137 encePairwiseOnDemand]: 207/215 looper letters, 52 selfloop transitions, 8 changer transitions 0/229 dead transitions. [2022-11-18 20:52:53,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 229 transitions, 676 flow [2022-11-18 20:52:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:53,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 894 transitions. [2022-11-18 20:52:53,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8316279069767442 [2022-11-18 20:52:53,278 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 894 transitions. [2022-11-18 20:52:53,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 894 transitions. [2022-11-18 20:52:53,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:53,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 894 transitions. [2022-11-18 20:52:53,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 178.8) internal successors, (894), 5 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,285 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,285 INFO L175 Difference]: Start difference. First operand has 199 places, 194 transitions, 444 flow. Second operand 5 states and 894 transitions. [2022-11-18 20:52:53,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 229 transitions, 676 flow [2022-11-18 20:52:53,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 229 transitions, 674 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:52:53,292 INFO L231 Difference]: Finished difference. Result has 205 places, 201 transitions, 506 flow [2022-11-18 20:52:53,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=506, PETRI_PLACES=205, PETRI_TRANSITIONS=201} [2022-11-18 20:52:53,295 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 12 predicate places. [2022-11-18 20:52:53,296 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 201 transitions, 506 flow [2022-11-18 20:52:53,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:53,297 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 20:52:53,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:52:53,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:52:53,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:53,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1330542726, now seen corresponding path program 1 times [2022-11-18 20:52:53,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:53,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266472409] [2022-11-18 20:52:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:52:53,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:53,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266472409] [2022-11-18 20:52:53,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266472409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:53,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:53,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901320283] [2022-11-18 20:52:53,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:53,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:53,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2022-11-18 20:52:53,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 201 transitions, 506 flow. Second operand has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:53,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2022-11-18 20:52:53,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:53,708 INFO L130 PetriNetUnfolder]: 46/892 cut-off events. [2022-11-18 20:52:53,709 INFO L131 PetriNetUnfolder]: For 229/598 co-relation queries the response was YES. [2022-11-18 20:52:53,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 892 events. 46/892 cut-off events. For 229/598 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5299 event pairs, 7 based on Foata normal form. 41/813 useless extension candidates. Maximal degree in co-relation 783. Up to 52 conditions per place. [2022-11-18 20:52:53,723 INFO L137 encePairwiseOnDemand]: 209/215 looper letters, 13 selfloop transitions, 8 changer transitions 0/201 dead transitions. [2022-11-18 20:52:53,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 201 transitions, 546 flow [2022-11-18 20:52:53,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:52:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 884 transitions. [2022-11-18 20:52:53,727 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8223255813953488 [2022-11-18 20:52:53,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 884 transitions. [2022-11-18 20:52:53,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 884 transitions. [2022-11-18 20:52:53,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:53,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 884 transitions. [2022-11-18 20:52:53,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 176.8) internal successors, (884), 5 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,736 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,736 INFO L175 Difference]: Start difference. First operand has 205 places, 201 transitions, 506 flow. Second operand 5 states and 884 transitions. [2022-11-18 20:52:53,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 201 transitions, 546 flow [2022-11-18 20:52:53,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 201 transitions, 542 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:52:53,744 INFO L231 Difference]: Finished difference. Result has 208 places, 201 transitions, 522 flow [2022-11-18 20:52:53,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=522, PETRI_PLACES=208, PETRI_TRANSITIONS=201} [2022-11-18 20:52:53,745 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 15 predicate places. [2022-11-18 20:52:53,746 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 201 transitions, 522 flow [2022-11-18 20:52:53,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:53,747 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:53,747 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] [2022-11-18 20:52:53,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:52:53,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:52:53,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:53,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1702849126, now seen corresponding path program 1 times [2022-11-18 20:52:53,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:53,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121999801] [2022-11-18 20:52:53,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:53,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:53,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:53,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:53,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121999801] [2022-11-18 20:52:53,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121999801] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:52:53,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198029855] [2022-11-18 20:52:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:53,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:52:53,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:53,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:52:53,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:52:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:54,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:52:54,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:54,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:54,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198029855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:54,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:52:54,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:52:54,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168074539] [2022-11-18 20:52:54,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:54,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:54,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:52:54,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2022-11-18 20:52:54,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 201 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:54,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:54,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2022-11-18 20:52:54,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:54,491 INFO L130 PetriNetUnfolder]: 46/890 cut-off events. [2022-11-18 20:52:54,491 INFO L131 PetriNetUnfolder]: For 238/576 co-relation queries the response was YES. [2022-11-18 20:52:54,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 890 events. 46/890 cut-off events. For 238/576 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5298 event pairs, 7 based on Foata normal form. 18/788 useless extension candidates. Maximal degree in co-relation 783. Up to 58 conditions per place. [2022-11-18 20:52:54,510 INFO L137 encePairwiseOnDemand]: 210/215 looper letters, 17 selfloop transitions, 6 changer transitions 0/203 dead transitions. [2022-11-18 20:52:54,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 203 transitions, 570 flow [2022-11-18 20:52:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:52:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:52:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1235 transitions. [2022-11-18 20:52:54,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8205980066445183 [2022-11-18 20:52:54,516 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1235 transitions. [2022-11-18 20:52:54,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1235 transitions. [2022-11-18 20:52:54,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:54,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1235 transitions. [2022-11-18 20:52:54,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 176.42857142857142) internal successors, (1235), 7 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:54,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 215.0) internal successors, (1720), 8 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:54,525 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 215.0) internal successors, (1720), 8 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:54,526 INFO L175 Difference]: Start difference. First operand has 208 places, 201 transitions, 522 flow. Second operand 7 states and 1235 transitions. [2022-11-18 20:52:54,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 203 transitions, 570 flow [2022-11-18 20:52:54,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 203 transitions, 558 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:52:54,534 INFO L231 Difference]: Finished difference. Result has 210 places, 200 transitions, 518 flow [2022-11-18 20:52:54,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=518, PETRI_PLACES=210, PETRI_TRANSITIONS=200} [2022-11-18 20:52:54,536 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 17 predicate places. [2022-11-18 20:52:54,536 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 200 transitions, 518 flow [2022-11-18 20:52:54,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:54,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:54,537 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:54,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:54,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:52:54,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:52:54,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash -630447835, now seen corresponding path program 1 times [2022-11-18 20:52:54,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:54,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348069303] [2022-11-18 20:52:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:54,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:54,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348069303] [2022-11-18 20:52:54,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348069303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:54,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:54,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:52:54,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654696782] [2022-11-18 20:52:54,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:54,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:54,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:54,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:54,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 215 [2022-11-18 20:52:54,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 200 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:54,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:54,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 215 [2022-11-18 20:52:54,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:52:58,854 INFO L130 PetriNetUnfolder]: 4141/14779 cut-off events. [2022-11-18 20:52:58,854 INFO L131 PetriNetUnfolder]: For 4708/5057 co-relation queries the response was YES. [2022-11-18 20:52:58,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24024 conditions, 14779 events. 4141/14779 cut-off events. For 4708/5057 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 179686 event pairs, 1237 based on Foata normal form. 15/12708 useless extension candidates. Maximal degree in co-relation 11749. Up to 2737 conditions per place. [2022-11-18 20:52:59,089 INFO L137 encePairwiseOnDemand]: 202/215 looper letters, 100 selfloop transitions, 27 changer transitions 0/290 dead transitions. [2022-11-18 20:52:59,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 290 transitions, 1098 flow [2022-11-18 20:52:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:52:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:52:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1578 transitions. [2022-11-18 20:52:59,095 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8155038759689922 [2022-11-18 20:52:59,095 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1578 transitions. [2022-11-18 20:52:59,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1578 transitions. [2022-11-18 20:52:59,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:52:59,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1578 transitions. [2022-11-18 20:52:59,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.33333333333334) internal successors, (1578), 9 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,107 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,107 INFO L175 Difference]: Start difference. First operand has 210 places, 200 transitions, 518 flow. Second operand 9 states and 1578 transitions. [2022-11-18 20:52:59,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 290 transitions, 1098 flow [2022-11-18 20:52:59,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 290 transitions, 1087 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-18 20:52:59,121 INFO L231 Difference]: Finished difference. Result has 219 places, 219 transitions, 711 flow [2022-11-18 20:52:59,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=711, PETRI_PLACES=219, PETRI_TRANSITIONS=219} [2022-11-18 20:52:59,122 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 26 predicate places. [2022-11-18 20:52:59,123 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 219 transitions, 711 flow [2022-11-18 20:52:59,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,124 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:52:59,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:59,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:52:59,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:52:59,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1930954457, now seen corresponding path program 1 times [2022-11-18 20:52:59,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:59,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323578304] [2022-11-18 20:52:59,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:59,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:59,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323578304] [2022-11-18 20:52:59,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323578304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:59,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:59,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:52:59,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620210845] [2022-11-18 20:52:59,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:59,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:59,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:59,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:59,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:59,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 215 [2022-11-18 20:52:59,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 219 transitions, 711 flow. Second operand has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:52:59,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 215 [2022-11-18 20:52:59,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:02,499 INFO L130 PetriNetUnfolder]: 3952/14734 cut-off events. [2022-11-18 20:53:02,499 INFO L131 PetriNetUnfolder]: For 14276/14806 co-relation queries the response was YES. [2022-11-18 20:53:02,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28630 conditions, 14734 events. 3952/14734 cut-off events. For 14276/14806 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 181373 event pairs, 1237 based on Foata normal form. 283/13169 useless extension candidates. Maximal degree in co-relation 19250. Up to 2977 conditions per place. [2022-11-18 20:53:02,892 INFO L137 encePairwiseOnDemand]: 202/215 looper letters, 107 selfloop transitions, 27 changer transitions 0/297 dead transitions. [2022-11-18 20:53:02,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 297 transitions, 1356 flow [2022-11-18 20:53:02,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:53:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:53:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1576 transitions. [2022-11-18 20:53:02,900 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.814470284237726 [2022-11-18 20:53:02,901 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1576 transitions. [2022-11-18 20:53:02,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1576 transitions. [2022-11-18 20:53:02,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:02,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1576 transitions. [2022-11-18 20:53:02,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.11111111111111) internal successors, (1576), 9 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,915 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,915 INFO L175 Difference]: Start difference. First operand has 219 places, 219 transitions, 711 flow. Second operand 9 states and 1576 transitions. [2022-11-18 20:53:02,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 297 transitions, 1356 flow [2022-11-18 20:53:02,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 297 transitions, 1289 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-11-18 20:53:02,979 INFO L231 Difference]: Finished difference. Result has 225 places, 227 transitions, 792 flow [2022-11-18 20:53:02,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=792, PETRI_PLACES=225, PETRI_TRANSITIONS=227} [2022-11-18 20:53:02,981 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 32 predicate places. [2022-11-18 20:53:02,981 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 227 transitions, 792 flow [2022-11-18 20:53:02,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:02,983 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, 1, 1, 1, 1, 1] [2022-11-18 20:53:02,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:53:02,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:53:02,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:02,984 INFO L85 PathProgramCache]: Analyzing trace with hash -789510643, now seen corresponding path program 1 times [2022-11-18 20:53:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:02,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917223950] [2022-11-18 20:53:02,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:02,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:53:03,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:03,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917223950] [2022-11-18 20:53:03,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917223950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:03,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:03,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:53:03,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934037750] [2022-11-18 20:53:03,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:03,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:03,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:03,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:03,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:03,109 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2022-11-18 20:53:03,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 227 transitions, 792 flow. Second operand has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:03,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:03,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2022-11-18 20:53:03,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:06,916 INFO L130 PetriNetUnfolder]: 4348/18311 cut-off events. [2022-11-18 20:53:06,916 INFO L131 PetriNetUnfolder]: For 17509/18284 co-relation queries the response was YES. [2022-11-18 20:53:07,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35976 conditions, 18311 events. 4348/18311 cut-off events. For 17509/18284 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 242509 event pairs, 1561 based on Foata normal form. 211/16605 useless extension candidates. Maximal degree in co-relation 32387. Up to 4797 conditions per place. [2022-11-18 20:53:07,192 INFO L137 encePairwiseOnDemand]: 207/215 looper letters, 93 selfloop transitions, 11 changer transitions 0/276 dead transitions. [2022-11-18 20:53:07,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 276 transitions, 1308 flow [2022-11-18 20:53:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:07,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:53:07,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 892 transitions. [2022-11-18 20:53:07,196 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8297674418604651 [2022-11-18 20:53:07,196 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 892 transitions. [2022-11-18 20:53:07,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 892 transitions. [2022-11-18 20:53:07,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:07,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 892 transitions. [2022-11-18 20:53:07,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:07,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:07,203 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:07,203 INFO L175 Difference]: Start difference. First operand has 225 places, 227 transitions, 792 flow. Second operand 5 states and 892 transitions. [2022-11-18 20:53:07,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 276 transitions, 1308 flow [2022-11-18 20:53:07,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 276 transitions, 1266 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-18 20:53:07,309 INFO L231 Difference]: Finished difference. Result has 228 places, 232 transitions, 842 flow [2022-11-18 20:53:07,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=842, PETRI_PLACES=228, PETRI_TRANSITIONS=232} [2022-11-18 20:53:07,311 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 35 predicate places. [2022-11-18 20:53:07,311 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 232 transitions, 842 flow [2022-11-18 20:53:07,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:07,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:07,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:07,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:53:07,313 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:53:07,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash 524892817, now seen corresponding path program 1 times [2022-11-18 20:53:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:07,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557146277] [2022-11-18 20:53:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:07,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:53:07,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:07,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557146277] [2022-11-18 20:53:07,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557146277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:07,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:07,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:53:07,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795566170] [2022-11-18 20:53:07,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:07,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:07,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:07,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:07,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:07,454 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 215 [2022-11-18 20:53:07,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 232 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:07,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:07,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 215 [2022-11-18 20:53:07,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:14,770 INFO L130 PetriNetUnfolder]: 9315/34646 cut-off events. [2022-11-18 20:53:14,771 INFO L131 PetriNetUnfolder]: For 33533/35552 co-relation queries the response was YES. [2022-11-18 20:53:15,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70569 conditions, 34646 events. 9315/34646 cut-off events. For 33533/35552 co-relation queries the response was YES. Maximal size of possible extension queue 2056. Compared 495700 event pairs, 2289 based on Foata normal form. 421/31884 useless extension candidates. Maximal degree in co-relation 63563. Up to 7057 conditions per place. [2022-11-18 20:53:15,366 INFO L137 encePairwiseOnDemand]: 202/215 looper letters, 149 selfloop transitions, 46 changer transitions 0/362 dead transitions. [2022-11-18 20:53:15,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 362 transitions, 1988 flow [2022-11-18 20:53:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:53:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:53:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1575 transitions. [2022-11-18 20:53:15,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.813953488372093 [2022-11-18 20:53:15,383 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1575 transitions. [2022-11-18 20:53:15,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1575 transitions. [2022-11-18 20:53:15,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:15,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1575 transitions. [2022-11-18 20:53:15,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.0) internal successors, (1575), 9 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:15,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:15,408 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:15,408 INFO L175 Difference]: Start difference. First operand has 228 places, 232 transitions, 842 flow. Second operand 9 states and 1575 transitions. [2022-11-18 20:53:15,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 362 transitions, 1988 flow [2022-11-18 20:53:15,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 362 transitions, 1982 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:53:15,963 INFO L231 Difference]: Finished difference. Result has 241 places, 267 transitions, 1326 flow [2022-11-18 20:53:15,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1326, PETRI_PLACES=241, PETRI_TRANSITIONS=267} [2022-11-18 20:53:15,964 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 48 predicate places. [2022-11-18 20:53:15,964 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 267 transitions, 1326 flow [2022-11-18 20:53:15,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:15,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:15,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:15,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:53:15,966 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:53:15,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:15,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1760580517, now seen corresponding path program 1 times [2022-11-18 20:53:15,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:15,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426879046] [2022-11-18 20:53:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:15,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:53:16,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:16,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426879046] [2022-11-18 20:53:16,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426879046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:16,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:16,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:53:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515310162] [2022-11-18 20:53:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:16,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:16,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:16,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 215 [2022-11-18 20:53:16,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 267 transitions, 1326 flow. Second operand has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:16,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:16,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 215 [2022-11-18 20:53:16,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:18,816 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([846] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_11| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread1of3ForFork0_thidvar0_4) InVars {ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_11|, t_funThread1of3ForFork0_thidvar0=v_t_funThread1of3ForFork0_thidvar0_4} AuxVars[] AssignedVars[][143], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), 424#(<= ~global~0 1), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, t_funThread1of3ForFork0NotInUse, 216#true, t_funThread2of3ForFork0NotInUse, 55#L952-4true]) [2022-11-18 20:53:18,817 INFO L383 tUnfolder$Statistics]: this new event has 136 ancestors and is cut-off event [2022-11-18 20:53:18,817 INFO L386 tUnfolder$Statistics]: existing Event has 88 ancestors and is cut-off event [2022-11-18 20:53:18,817 INFO L386 tUnfolder$Statistics]: existing Event has 89 ancestors and is cut-off event [2022-11-18 20:53:18,817 INFO L386 tUnfolder$Statistics]: existing Event has 90 ancestors and is cut-off event [2022-11-18 20:53:19,812 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][178], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), 65#t_funENTRYtrue, Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 208#(= ~global~0 0), 420#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), 468#(<= ~global~0 1), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 464#true, 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:19,813 INFO L383 tUnfolder$Statistics]: this new event has 148 ancestors and is cut-off event [2022-11-18 20:53:19,813 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-18 20:53:19,813 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 20:53:19,814 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:53:19,930 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][177], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 208#(= ~global~0 0), 420#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), 468#(<= ~global~0 1), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 464#true, 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 175#L938-1true, 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:19,930 INFO L383 tUnfolder$Statistics]: this new event has 150 ancestors and is cut-off event [2022-11-18 20:53:19,931 INFO L386 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-11-18 20:53:19,931 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 20:53:19,931 INFO L386 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-11-18 20:53:19,980 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([763] L939-7-->L939-8: Formula: (= |v_#pthreadsMutex_15| (store |v_#pthreadsMutex_16| |v_~#__global_lock~0.base_10| (store (select |v_#pthreadsMutex_16| |v_~#__global_lock~0.base_10|) |v_~#__global_lock~0.offset_10| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#__global_lock~0.base=|v_~#__global_lock~0.base_10|, ~#__global_lock~0.offset=|v_~#__global_lock~0.offset_10|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#__global_lock~0.base=|v_~#__global_lock~0.base_10|, ~#__global_lock~0.offset=|v_~#__global_lock~0.offset_10|} AuxVars[] AssignedVars[#pthreadsMutex][161], [t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0NotInUse, 161#L939-8true, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 468#(<= ~global~0 1), 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), 8#L941true, Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true]) [2022-11-18 20:53:19,981 INFO L383 tUnfolder$Statistics]: this new event has 149 ancestors and is cut-off event [2022-11-18 20:53:19,981 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 20:53:19,981 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 20:53:19,981 INFO L386 tUnfolder$Statistics]: existing Event has 149 ancestors and is cut-off event [2022-11-18 20:53:20,131 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][177], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 208#(= ~global~0 0), 420#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), 138#L939-1true, 468#(<= ~global~0 1), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 464#true, 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:20,131 INFO L383 tUnfolder$Statistics]: this new event has 153 ancestors and is cut-off event [2022-11-18 20:53:20,131 INFO L386 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-11-18 20:53:20,131 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 20:53:20,132 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 20:53:20,363 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][177], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 117#L939-8true, Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:20,363 INFO L383 tUnfolder$Statistics]: this new event has 159 ancestors and is cut-off event [2022-11-18 20:53:20,364 INFO L386 tUnfolder$Statistics]: existing Event has 114 ancestors and is cut-off event [2022-11-18 20:53:20,364 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-18 20:53:20,364 INFO L386 tUnfolder$Statistics]: existing Event has 112 ancestors and is cut-off event [2022-11-18 20:53:20,428 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][177], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 84#L939-11true, Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:20,428 INFO L383 tUnfolder$Statistics]: this new event has 161 ancestors and is cut-off event [2022-11-18 20:53:20,429 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:53:20,429 INFO L386 tUnfolder$Statistics]: existing Event has 115 ancestors and is cut-off event [2022-11-18 20:53:20,429 INFO L386 tUnfolder$Statistics]: existing Event has 114 ancestors and is cut-off event [2022-11-18 20:53:20,448 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([763] L939-7-->L939-8: Formula: (= |v_#pthreadsMutex_15| (store |v_#pthreadsMutex_16| |v_~#__global_lock~0.base_10| (store (select |v_#pthreadsMutex_16| |v_~#__global_lock~0.base_10|) |v_~#__global_lock~0.offset_10| 0))) InVars {#pthreadsMutex=|v_#pthreadsMutex_16|, ~#__global_lock~0.base=|v_~#__global_lock~0.base_10|, ~#__global_lock~0.offset=|v_~#__global_lock~0.offset_10|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_15|, ~#__global_lock~0.base=|v_~#__global_lock~0.base_10|, ~#__global_lock~0.offset=|v_~#__global_lock~0.offset_10|} AuxVars[] AssignedVars[#pthreadsMutex][161], [t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0NotInUse, 161#L939-8true, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, t_funThread1of3ForFork0NotInUse, 216#true, 55#L952-4true]) [2022-11-18 20:53:20,448 INFO L383 tUnfolder$Statistics]: this new event has 160 ancestors and is cut-off event [2022-11-18 20:53:20,448 INFO L386 tUnfolder$Statistics]: existing Event has 160 ancestors and is cut-off event [2022-11-18 20:53:20,448 INFO L386 tUnfolder$Statistics]: existing Event has 160 ancestors and is cut-off event [2022-11-18 20:53:20,448 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-18 20:53:20,571 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][177], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), 46#L939-18true, Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:20,571 INFO L383 tUnfolder$Statistics]: this new event has 168 ancestors and is cut-off event [2022-11-18 20:53:20,571 INFO L386 tUnfolder$Statistics]: existing Event has 123 ancestors and is cut-off event [2022-11-18 20:53:20,571 INFO L386 tUnfolder$Statistics]: existing Event has 122 ancestors and is cut-off event [2022-11-18 20:53:20,571 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-18 20:53:20,645 INFO L130 PetriNetUnfolder]: 2833/21058 cut-off events. [2022-11-18 20:53:20,645 INFO L131 PetriNetUnfolder]: For 12763/13282 co-relation queries the response was YES. [2022-11-18 20:53:20,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33284 conditions, 21058 events. 2833/21058 cut-off events. For 12763/13282 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 293829 event pairs, 1095 based on Foata normal form. 692/19310 useless extension candidates. Maximal degree in co-relation 25666. Up to 3031 conditions per place. [2022-11-18 20:53:20,876 INFO L137 encePairwiseOnDemand]: 206/215 looper letters, 55 selfloop transitions, 9 changer transitions 0/290 dead transitions. [2022-11-18 20:53:20,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 290 transitions, 1509 flow [2022-11-18 20:53:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:53:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 822 transitions. [2022-11-18 20:53:20,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7646511627906977 [2022-11-18 20:53:20,880 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 822 transitions. [2022-11-18 20:53:20,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 822 transitions. [2022-11-18 20:53:20,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:20,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 822 transitions. [2022-11-18 20:53:20,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.4) internal successors, (822), 5 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:20,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:20,886 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:20,886 INFO L175 Difference]: Start difference. First operand has 241 places, 267 transitions, 1326 flow. Second operand 5 states and 822 transitions. [2022-11-18 20:53:20,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 290 transitions, 1509 flow [2022-11-18 20:53:21,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 290 transitions, 1479 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-11-18 20:53:21,011 INFO L231 Difference]: Finished difference. Result has 243 places, 270 transitions, 1323 flow [2022-11-18 20:53:21,011 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1323, PETRI_PLACES=243, PETRI_TRANSITIONS=270} [2022-11-18 20:53:21,012 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 50 predicate places. [2022-11-18 20:53:21,012 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 270 transitions, 1323 flow [2022-11-18 20:53:21,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:21,013 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:21,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:21,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:53:21,014 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:53:21,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:21,014 INFO L85 PathProgramCache]: Analyzing trace with hash -908191067, now seen corresponding path program 1 times [2022-11-18 20:53:21,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:21,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933667364] [2022-11-18 20:53:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 20:53:21,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:21,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933667364] [2022-11-18 20:53:21,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933667364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:21,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:21,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:53:21,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142606529] [2022-11-18 20:53:21,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:21,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:21,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:21,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:21,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:21,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 215 [2022-11-18 20:53:21,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 270 transitions, 1323 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:21,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:21,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 215 [2022-11-18 20:53:21,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:25,123 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][184], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), 152#L939-3true, Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), 495#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), 468#(<= ~global~0 1), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 464#true, 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:25,124 INFO L383 tUnfolder$Statistics]: this new event has 155 ancestors and is cut-off event [2022-11-18 20:53:25,124 INFO L386 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-11-18 20:53:25,124 INFO L386 tUnfolder$Statistics]: existing Event has 155 ancestors and is cut-off event [2022-11-18 20:53:25,124 INFO L386 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-11-18 20:53:25,572 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][184], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), 495#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 468#(<= ~global~0 1), 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), 112#L939-6true, Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:25,572 INFO L383 tUnfolder$Statistics]: this new event has 158 ancestors and is cut-off event [2022-11-18 20:53:25,573 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:53:25,573 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:53:25,573 INFO L386 tUnfolder$Statistics]: existing Event has 158 ancestors and is cut-off event [2022-11-18 20:53:25,861 INFO L130 PetriNetUnfolder]: 2752/18670 cut-off events. [2022-11-18 20:53:25,862 INFO L131 PetriNetUnfolder]: For 24088/24772 co-relation queries the response was YES. [2022-11-18 20:53:26,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34975 conditions, 18670 events. 2752/18670 cut-off events. For 24088/24772 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 258962 event pairs, 1208 based on Foata normal form. 299/16875 useless extension candidates. Maximal degree in co-relation 29997. Up to 3608 conditions per place. [2022-11-18 20:53:26,111 INFO L137 encePairwiseOnDemand]: 202/215 looper letters, 141 selfloop transitions, 40 changer transitions 0/352 dead transitions. [2022-11-18 20:53:26,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 352 transitions, 2214 flow [2022-11-18 20:53:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:53:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:53:26,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1569 transitions. [2022-11-18 20:53:26,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8108527131782945 [2022-11-18 20:53:26,116 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1569 transitions. [2022-11-18 20:53:26,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1569 transitions. [2022-11-18 20:53:26,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:26,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1569 transitions. [2022-11-18 20:53:26,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 174.33333333333334) internal successors, (1569), 9 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:26,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:26,128 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 215.0) internal successors, (2150), 10 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:26,129 INFO L175 Difference]: Start difference. First operand has 243 places, 270 transitions, 1323 flow. Second operand 9 states and 1569 transitions. [2022-11-18 20:53:26,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 352 transitions, 2214 flow [2022-11-18 20:53:26,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 352 transitions, 2192 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:53:26,256 INFO L231 Difference]: Finished difference. Result has 250 places, 282 transitions, 1561 flow [2022-11-18 20:53:26,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1561, PETRI_PLACES=250, PETRI_TRANSITIONS=282} [2022-11-18 20:53:26,258 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 57 predicate places. [2022-11-18 20:53:26,258 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 282 transitions, 1561 flow [2022-11-18 20:53:26,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:26,259 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:26,259 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 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] [2022-11-18 20:53:26,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 20:53:26,259 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:53:26,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1078318886, now seen corresponding path program 1 times [2022-11-18 20:53:26,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:26,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037277377] [2022-11-18 20:53:26,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:26,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 20:53:26,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:26,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037277377] [2022-11-18 20:53:26,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037277377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:26,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:26,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:53:26,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258998249] [2022-11-18 20:53:26,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:26,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:26,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:26,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:26,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:26,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 215 [2022-11-18 20:53:26,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 282 transitions, 1561 flow. Second operand has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:26,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:26,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 215 [2022-11-18 20:53:26,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:29,760 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][167], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), 152#L939-3true, Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, Black: 208#(= ~global~0 0), 495#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), 468#(<= ~global~0 1), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 510#true, Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), Black: 506#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 499#(<= 1 ~global~0), 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:29,761 INFO L383 tUnfolder$Statistics]: this new event has 155 ancestors and is cut-off event [2022-11-18 20:53:29,761 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 20:53:29,761 INFO L386 tUnfolder$Statistics]: existing Event has 108 ancestors and is cut-off event [2022-11-18 20:53:29,761 INFO L386 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-11-18 20:53:29,818 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][167], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 495#true, 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 510#true, Black: 424#(<= ~global~0 1), 112#L939-6true, Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, Black: 506#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), 216#true, Black: 499#(<= 1 ~global~0), t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:29,818 INFO L383 tUnfolder$Statistics]: this new event has 157 ancestors and is cut-off event [2022-11-18 20:53:29,818 INFO L386 tUnfolder$Statistics]: existing Event has 110 ancestors and is cut-off event [2022-11-18 20:53:29,818 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 20:53:29,818 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:29,850 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][167], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 164#L939-16true, 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 456#(= ~global~0 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 420#true, 495#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 468#(<= ~global~0 1), 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 510#true, Black: 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, Black: 506#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), Black: 499#(<= 1 ~global~0), 216#true, t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:29,850 INFO L383 tUnfolder$Statistics]: this new event has 167 ancestors and is cut-off event [2022-11-18 20:53:29,850 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:29,850 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:29,851 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:29,960 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][167], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), 156#L939-13true, Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 495#true, 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), 439#true, Black: 468#(<= ~global~0 1), Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 510#true, Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, Black: 506#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), 216#true, Black: 499#(<= 1 ~global~0), t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:29,960 INFO L383 tUnfolder$Statistics]: this new event has 163 ancestors and is cut-off event [2022-11-18 20:53:29,961 INFO L386 tUnfolder$Statistics]: existing Event has 116 ancestors and is cut-off event [2022-11-18 20:53:29,961 INFO L386 tUnfolder$Statistics]: existing Event has 117 ancestors and is cut-off event [2022-11-18 20:53:29,961 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 20:53:30,003 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][167], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 164#L939-16true, 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), 495#true, 420#true, Black: 208#(= ~global~0 0), Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 468#(<= ~global~0 1), 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 510#true, Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, Black: 506#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), 216#true, Black: 499#(<= 1 ~global~0), t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:30,003 INFO L383 tUnfolder$Statistics]: this new event has 166 ancestors and is cut-off event [2022-11-18 20:53:30,003 INFO L386 tUnfolder$Statistics]: existing Event has 119 ancestors and is cut-off event [2022-11-18 20:53:30,003 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:30,004 INFO L386 tUnfolder$Statistics]: existing Event has 129 ancestors and is cut-off event [2022-11-18 20:53:30,013 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([847] t_funEXIT-->L952-4: Formula: (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem46#1_13| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_t_funThread2of3ForFork0_thidvar0_4) InVars {t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} OutVars{t_funThread2of3ForFork0_thidvar0=v_t_funThread2of3ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem46#1=|v_ULTIMATE.start_main_#t~mem46#1_13|} AuxVars[] AssignedVars[][167], [t_funThread3of3ForFork0NotInUse, Black: 450#(and (<= 1 |t_funThread1of3ForFork0_#t~post35|) (<= 1 ~global~0)), Black: 443#(<= 1 ~global~0), 229#(<= 1 |ULTIMATE.start_main_~i~1#1|), 164#L939-16true, Black: 201#(and (= |ULTIMATE.start_main_~i~1#1| 0) (= 0 |ULTIMATE.start_main_#t~post37#1|)), Black: 456#(= ~global~0 0), Black: 198#(= |ULTIMATE.start_main_~i~1#1| 0), Black: 457#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 459#(and (= ~global~0 0) (= |t_funThread2of3ForFork0_#t~post33| 0)), Black: 211#(and (= ~global~0 0) (= |t_funThread1of3ForFork0_#t~post33| 0)), Black: 208#(= ~global~0 0), 420#true, 495#true, Black: 209#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 475#(and (<= |t_funThread2of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 468#(<= ~global~0 1), 439#true, Black: 467#(= |t_funThread2of3ForFork0_#t~post33| 0), Black: 469#(<= |t_funThread2of3ForFork0_#t~post35| 1), Black: 473#(and (= |t_funThread2of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 490#(and (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), 510#true, Black: 492#(and (= (select (select |#pthreadsMutex| |~#mutex1~0.base|) |~#mutex1~0.offset|) 1) (<= |~#__global_lock~0.base| 3) (not (= |~#mutex1~0.base| |~#__global_lock~0.base|))), Black: 424#(<= ~global~0 1), Black: 425#(<= |t_funThread1of3ForFork0_#t~post35| 1), Black: 431#(and (<= |t_funThread1of3ForFork0_#t~post35| 1) (<= ~global~0 1)), Black: 423#(= |t_funThread1of3ForFork0_#t~post33| 0), Black: 429#(and (= |t_funThread1of3ForFork0_#t~post33| 0) (<= ~global~0 1)), 464#true, Black: 506#(and (<= 1 ~global~0) (<= 1 |t_funThread2of3ForFork0_#t~post35|)), 216#true, Black: 499#(<= 1 ~global~0), t_funThread1of3ForFork0InUse, 55#L952-4true, t_funThread2of3ForFork0NotInUse]) [2022-11-18 20:53:30,013 INFO L383 tUnfolder$Statistics]: this new event has 167 ancestors and is cut-off event [2022-11-18 20:53:30,014 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:30,014 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:30,014 INFO L386 tUnfolder$Statistics]: existing Event has 167 ancestors and is cut-off event [2022-11-18 20:53:30,014 INFO L386 tUnfolder$Statistics]: existing Event has 120 ancestors and is cut-off event [2022-11-18 20:53:30,072 INFO L130 PetriNetUnfolder]: 2430/17120 cut-off events. [2022-11-18 20:53:30,072 INFO L131 PetriNetUnfolder]: For 24628/25287 co-relation queries the response was YES. [2022-11-18 20:53:30,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32597 conditions, 17120 events. 2430/17120 cut-off events. For 24628/25287 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 231778 event pairs, 1399 based on Foata normal form. 224/15129 useless extension candidates. Maximal degree in co-relation 24716. Up to 3857 conditions per place. [2022-11-18 20:53:30,258 INFO L137 encePairwiseOnDemand]: 207/215 looper letters, 136 selfloop transitions, 12 changer transitions 0/328 dead transitions. [2022-11-18 20:53:30,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 328 transitions, 2260 flow [2022-11-18 20:53:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:53:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 890 transitions. [2022-11-18 20:53:30,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.827906976744186 [2022-11-18 20:53:30,261 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 890 transitions. [2022-11-18 20:53:30,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 890 transitions. [2022-11-18 20:53:30,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:30,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 890 transitions. [2022-11-18 20:53:30,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,268 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,268 INFO L175 Difference]: Start difference. First operand has 250 places, 282 transitions, 1561 flow. Second operand 5 states and 890 transitions. [2022-11-18 20:53:30,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 328 transitions, 2260 flow [2022-11-18 20:53:30,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 328 transitions, 2197 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-18 20:53:30,364 INFO L231 Difference]: Finished difference. Result has 253 places, 286 transitions, 1593 flow [2022-11-18 20:53:30,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=1513, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1593, PETRI_PLACES=253, PETRI_TRANSITIONS=286} [2022-11-18 20:53:30,365 INFO L288 CegarLoopForPetriNet]: 193 programPoint places, 60 predicate places. [2022-11-18 20:53:30,366 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 286 transitions, 1593 flow [2022-11-18 20:53:30,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:30,367 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 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] [2022-11-18 20:53:30,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 20:53:30,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-18 20:53:30,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:30,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1262059962, now seen corresponding path program 1 times [2022-11-18 20:53:30,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:30,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450341566] [2022-11-18 20:53:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:30,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:53:30,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:53:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:53:30,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:53:30,415 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:53:30,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-11-18 20:53:30,415 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-18 20:53:30,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-18 20:53:30,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-18 20:53:30,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-18 20:53:30,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-18 20:53:30,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-18 20:53:30,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-18 20:53:30,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-18 20:53:30,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-18 20:53:30,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-18 20:53:30,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-18 20:53:30,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-11-18 20:53:30,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-18 20:53:30,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-18 20:53:30,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-18 20:53:30,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-18 20:53:30,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-18 20:53:30,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-18 20:53:30,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-18 20:53:30,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-18 20:53:30,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 20:53:30,421 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:30,422 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 20:53:30,423 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-18 20:53:30,461 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 20:53:30,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 253 transitions, 550 flow [2022-11-18 20:53:30,604 INFO L130 PetriNetUnfolder]: 96/706 cut-off events. [2022-11-18 20:53:30,605 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-18 20:53:30,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 706 events. 96/706 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2755 event pairs, 6 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 482. Up to 32 conditions per place. [2022-11-18 20:53:30,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 226 places, 253 transitions, 550 flow [2022-11-18 20:53:30,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 253 transitions, 550 flow [2022-11-18 20:53:30,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:53:30,625 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;@41b2709d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:53:30,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-18 20:53:30,632 INFO L130 PetriNetUnfolder]: 5/75 cut-off events. [2022-11-18 20:53:30,632 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:53:30,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:30,632 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] [2022-11-18 20:53:30,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-18 20:53:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1637403950, now seen corresponding path program 1 times [2022-11-18 20:53:30,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:30,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302950298] [2022-11-18 20:53:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:30,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:30,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:30,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302950298] [2022-11-18 20:53:30,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302950298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:30,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:30,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:53:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354895038] [2022-11-18 20:53:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:30,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:30,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2022-11-18 20:53:30,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 253 transitions, 550 flow. Second operand has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:30,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2022-11-18 20:53:30,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:30,893 INFO L130 PetriNetUnfolder]: 32/614 cut-off events. [2022-11-18 20:53:30,894 INFO L131 PetriNetUnfolder]: For 154/318 co-relation queries the response was YES. [2022-11-18 20:53:30,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 614 events. 32/614 cut-off events. For 154/318 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2523 event pairs, 6 based on Foata normal form. 629/1155 useless extension candidates. Maximal degree in co-relation 465. Up to 71 conditions per place. [2022-11-18 20:53:30,904 INFO L137 encePairwiseOnDemand]: 217/253 looper letters, 23 selfloop transitions, 4 changer transitions 0/230 dead transitions. [2022-11-18 20:53:30,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 230 transitions, 558 flow [2022-11-18 20:53:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:53:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1093 transitions. [2022-11-18 20:53:30,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8640316205533597 [2022-11-18 20:53:30,908 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1093 transitions. [2022-11-18 20:53:30,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1093 transitions. [2022-11-18 20:53:30,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:30,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1093 transitions. [2022-11-18 20:53:30,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 218.6) internal successors, (1093), 5 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,915 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,916 INFO L175 Difference]: Start difference. First operand has 226 places, 253 transitions, 550 flow. Second operand 5 states and 1093 transitions. [2022-11-18 20:53:30,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 230 transitions, 558 flow [2022-11-18 20:53:30,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 230 transitions, 558 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:53:30,921 INFO L231 Difference]: Finished difference. Result has 232 places, 226 transitions, 522 flow [2022-11-18 20:53:30,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=522, PETRI_PLACES=232, PETRI_TRANSITIONS=226} [2022-11-18 20:53:30,926 INFO L288 CegarLoopForPetriNet]: 226 programPoint places, 6 predicate places. [2022-11-18 20:53:30,927 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 226 transitions, 522 flow [2022-11-18 20:53:30,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:30,928 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] [2022-11-18 20:53:30,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 20:53:30,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-18 20:53:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash 767038117, now seen corresponding path program 1 times [2022-11-18 20:53:30,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:30,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995003140] [2022-11-18 20:53:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:30,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:30,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:30,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995003140] [2022-11-18 20:53:30,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995003140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:30,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:30,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:53:30,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797901370] [2022-11-18 20:53:30,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:30,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:30,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:30,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:30,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 253 [2022-11-18 20:53:30,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 226 transitions, 522 flow. Second operand has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:30,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:30,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 253 [2022-11-18 20:53:30,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:42,057 INFO L130 PetriNetUnfolder]: 15405/55136 cut-off events. [2022-11-18 20:53:42,057 INFO L131 PetriNetUnfolder]: For 11036/12211 co-relation queries the response was YES. [2022-11-18 20:53:42,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80157 conditions, 55136 events. 15405/55136 cut-off events. For 11036/12211 co-relation queries the response was YES. Maximal size of possible extension queue 2171. Compared 799492 event pairs, 6525 based on Foata normal form. 0/48786 useless extension candidates. Maximal degree in co-relation 80085. Up to 15272 conditions per place. [2022-11-18 20:53:42,893 INFO L137 encePairwiseOnDemand]: 244/253 looper letters, 68 selfloop transitions, 10 changer transitions 0/273 dead transitions. [2022-11-18 20:53:42,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 273 transitions, 844 flow [2022-11-18 20:53:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:53:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1042 transitions. [2022-11-18 20:53:42,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8237154150197629 [2022-11-18 20:53:42,897 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1042 transitions. [2022-11-18 20:53:42,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1042 transitions. [2022-11-18 20:53:42,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:42,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1042 transitions. [2022-11-18 20:53:42,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 208.4) internal successors, (1042), 5 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,904 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,904 INFO L175 Difference]: Start difference. First operand has 232 places, 226 transitions, 522 flow. Second operand 5 states and 1042 transitions. [2022-11-18 20:53:42,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 273 transitions, 844 flow [2022-11-18 20:53:42,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 273 transitions, 842 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:53:42,917 INFO L231 Difference]: Finished difference. Result has 238 places, 235 transitions, 599 flow [2022-11-18 20:53:42,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=599, PETRI_PLACES=238, PETRI_TRANSITIONS=235} [2022-11-18 20:53:42,919 INFO L288 CegarLoopForPetriNet]: 226 programPoint places, 12 predicate places. [2022-11-18 20:53:42,919 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 235 transitions, 599 flow [2022-11-18 20:53:42,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:42,920 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 20:53:42,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 20:53:42,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-18 20:53:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash 359664258, now seen corresponding path program 1 times [2022-11-18 20:53:42,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:42,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424982886] [2022-11-18 20:53:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:42,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:42,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:42,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424982886] [2022-11-18 20:53:42,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424982886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:42,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:42,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:53:42,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232011034] [2022-11-18 20:53:42,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:42,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:42,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:42,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:42,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:42,977 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2022-11-18 20:53:42,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 235 transitions, 599 flow. Second operand has 4 states, 4 states have (on average 206.75) internal successors, (827), 4 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:42,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:42,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2022-11-18 20:53:42,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:43,786 INFO L130 PetriNetUnfolder]: 164/2235 cut-off events. [2022-11-18 20:53:43,786 INFO L131 PetriNetUnfolder]: For 879/2311 co-relation queries the response was YES. [2022-11-18 20:53:43,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2862 conditions, 2235 events. 164/2235 cut-off events. For 879/2311 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 18046 event pairs, 49 based on Foata normal form. 90/1988 useless extension candidates. Maximal degree in co-relation 2095. Up to 172 conditions per place. [2022-11-18 20:53:43,817 INFO L137 encePairwiseOnDemand]: 247/253 looper letters, 15 selfloop transitions, 8 changer transitions 0/235 dead transitions. [2022-11-18 20:53:43,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 235 transitions, 643 flow [2022-11-18 20:53:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:53:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1036 transitions. [2022-11-18 20:53:43,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8189723320158103 [2022-11-18 20:53:43,820 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1036 transitions. [2022-11-18 20:53:43,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1036 transitions. [2022-11-18 20:53:43,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:43,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1036 transitions. [2022-11-18 20:53:43,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.2) internal successors, (1036), 5 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:43,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:43,827 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:43,827 INFO L175 Difference]: Start difference. First operand has 238 places, 235 transitions, 599 flow. Second operand 5 states and 1036 transitions. [2022-11-18 20:53:43,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 235 transitions, 643 flow [2022-11-18 20:53:43,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 638 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:53:43,834 INFO L231 Difference]: Finished difference. Result has 241 places, 235 transitions, 614 flow [2022-11-18 20:53:43,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=614, PETRI_PLACES=241, PETRI_TRANSITIONS=235} [2022-11-18 20:53:43,835 INFO L288 CegarLoopForPetriNet]: 226 programPoint places, 15 predicate places. [2022-11-18 20:53:43,835 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 235 transitions, 614 flow [2022-11-18 20:53:43,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.75) internal successors, (827), 4 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:43,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:43,836 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] [2022-11-18 20:53:43,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 20:53:43,837 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-18 20:53:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:43,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1735308965, now seen corresponding path program 1 times [2022-11-18 20:53:43,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:43,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819768557] [2022-11-18 20:53:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:43,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:43,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:43,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819768557] [2022-11-18 20:53:43,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819768557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:43,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026181170] [2022-11-18 20:53:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:43,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:43,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:43,941 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:43,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:53:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:44,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:53:44,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:44,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:44,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026181170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:44,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:53:44,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:53:44,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763270273] [2022-11-18 20:53:44,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:44,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:44,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:44,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:53:44,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2022-11-18 20:53:44,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 235 transitions, 614 flow. Second operand has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:44,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2022-11-18 20:53:44,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:44,863 INFO L130 PetriNetUnfolder]: 164/2232 cut-off events. [2022-11-18 20:53:44,863 INFO L131 PetriNetUnfolder]: For 867/2172 co-relation queries the response was YES. [2022-11-18 20:53:44,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 2232 events. 164/2232 cut-off events. For 867/2172 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 18019 event pairs, 49 based on Foata normal form. 35/1930 useless extension candidates. Maximal degree in co-relation 2094. Up to 181 conditions per place. [2022-11-18 20:53:44,927 INFO L137 encePairwiseOnDemand]: 248/253 looper letters, 19 selfloop transitions, 6 changer transitions 0/237 dead transitions. [2022-11-18 20:53:44,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 237 transitions, 666 flow [2022-11-18 20:53:44,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:53:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:53:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1447 transitions. [2022-11-18 20:53:44,931 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8170525127046866 [2022-11-18 20:53:44,931 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1447 transitions. [2022-11-18 20:53:44,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1447 transitions. [2022-11-18 20:53:44,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:44,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1447 transitions. [2022-11-18 20:53:44,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 206.71428571428572) internal successors, (1447), 7 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 253.0) internal successors, (2024), 8 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,938 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 253.0) internal successors, (2024), 8 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,938 INFO L175 Difference]: Start difference. First operand has 241 places, 235 transitions, 614 flow. Second operand 7 states and 1447 transitions. [2022-11-18 20:53:44,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 237 transitions, 666 flow [2022-11-18 20:53:44,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 237 transitions, 654 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:53:44,945 INFO L231 Difference]: Finished difference. Result has 243 places, 234 transitions, 610 flow [2022-11-18 20:53:44,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=253, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=610, PETRI_PLACES=243, PETRI_TRANSITIONS=234} [2022-11-18 20:53:44,946 INFO L288 CegarLoopForPetriNet]: 226 programPoint places, 17 predicate places. [2022-11-18 20:53:44,947 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 234 transitions, 610 flow [2022-11-18 20:53:44,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:44,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:44,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:44,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:45,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ddd18ee-9c84-41dc-85cd-e72bb58ea583/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 20:53:45,154 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-11-18 20:53:45,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:45,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1435198946, now seen corresponding path program 1 times [2022-11-18 20:53:45,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:45,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222841786] [2022-11-18 20:53:45,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:45,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:45,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222841786] [2022-11-18 20:53:45,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222841786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:45,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:45,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:53:45,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786846264] [2022-11-18 20:53:45,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:45,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:45,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:45,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:45,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:45,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 253 [2022-11-18 20:53:45,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 234 transitions, 610 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:45,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:45,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 253 [2022-11-18 20:53:45,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand