./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:22:31,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:22:31,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:22:31,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:22:31,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:22:31,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:22:31,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:22:31,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:22:31,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:22:31,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:22:31,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:22:31,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:22:31,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:22:31,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:22:31,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:22:31,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:22:31,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:22:31,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:22:31,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:22:31,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:22:31,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:22:31,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:22:31,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:22:31,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:22:31,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:22:31,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:22:31,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:22:31,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:22:31,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:22:31,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:22:31,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:22:31,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:22:31,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:22:31,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:22:31,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:22:31,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:22:31,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:22:31,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:22:31,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:22:31,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:22:31,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:22:31,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:22:31,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:22:31,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:22:31,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:22:31,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:22:31,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:22:31,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:22:31,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:22:31,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:22:31,512 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:22:31,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:22:31,513 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:22:31,513 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:22:31,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:22:31,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:22:31,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:22:31,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:22:31,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:22:31,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:22:31,515 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:22:31,516 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:22:31,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:22:31,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:22:31,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:22:31,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:22:31,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:22:31,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:22:31,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:22:31,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:22:31,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:22:31,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:22:31,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:22:31,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:22:31,520 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:22:31,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:22:31,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:22:31,521 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_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9eb5d9094342cfaa74d8ea4903febd735be5757c093d69b0f8dbb2a26886fda6 [2022-11-16 11:22:31,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:22:31,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:22:31,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:22:31,844 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:22:31,845 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:22:31,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2022-11-16 11:22:31,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/data/aec85ce3d/e109f9d1ebf94d26a1a3edcc45b82411/FLAG318ed81cf [2022-11-16 11:22:32,498 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:22:32,499 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2022-11-16 11:22:32,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/data/aec85ce3d/e109f9d1ebf94d26a1a3edcc45b82411/FLAG318ed81cf [2022-11-16 11:22:32,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/data/aec85ce3d/e109f9d1ebf94d26a1a3edcc45b82411 [2022-11-16 11:22:32,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:22:32,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:22:32,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:22:32,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:22:32,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:22:32,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb2c4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:32, skipping insertion in model container [2022-11-16 11:22:32,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:22:32" (1/1) ... [2022-11-16 11:22:32,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:22:32,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:22:33,150 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2022-11-16 11:22:33,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:22:33,168 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:22:33,194 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c[2599,2612] [2022-11-16 11:22:33,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:22:33,230 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:22:33,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33 WrapperNode [2022-11-16 11:22:33,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:22:33,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:22:33,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:22:33,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:22:33,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,311 INFO L138 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 365 [2022-11-16 11:22:33,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:22:33,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:22:33,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:22:33,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:22:33,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,372 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:22:33,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:22:33,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:22:33,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:22:33,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (1/1) ... [2022-11-16 11:22:33,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:22:33,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:22:33,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:22:33,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:22:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:22:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:22:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:22:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:22:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:22:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:22:33,520 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:22:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:22:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:22:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:22:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:22:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:22:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:22:33,531 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:22:33,715 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:22:33,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:22:34,542 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:22:35,976 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:22:35,977 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 11:22:35,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:22:35 BoogieIcfgContainer [2022-11-16 11:22:35,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:22:35,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:22:35,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:22:35,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:22:35,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:22:32" (1/3) ... [2022-11-16 11:22:35,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dd6339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:22:35, skipping insertion in model container [2022-11-16 11:22:35,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:22:33" (2/3) ... [2022-11-16 11:22:35,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dd6339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:22:35, skipping insertion in model container [2022-11-16 11:22:35,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:22:35" (3/3) ... [2022-11-16 11:22:35,994 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2022-11-16 11:22:36,004 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:22:36,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:22:36,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2022-11-16 11:22:36,016 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:22:36,513 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:22:36,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 248 transitions, 520 flow [2022-11-16 11:22:36,721 INFO L130 PetriNetUnfolder]: 16/245 cut-off events. [2022-11-16 11:22:36,721 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:22:36,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 245 events. 16/245 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 372 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2022-11-16 11:22:36,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 248 transitions, 520 flow [2022-11-16 11:22:36,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 224 transitions, 463 flow [2022-11-16 11:22:36,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:22:36,764 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;@735efa62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:22:36,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2022-11-16 11:22:36,778 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-11-16 11:22:36,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:22:36,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:22:36,780 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] [2022-11-16 11:22:36,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-16 11:22:36,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1294000257, now seen corresponding path program 1 times [2022-11-16 11:22:36,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:36,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240357643] [2022-11-16 11:22:36,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:37,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:22:37,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:22:37,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240357643] [2022-11-16 11:22:37,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240357643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:22:37,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:22:37,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:22:37,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207302727] [2022-11-16 11:22:37,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:22:37,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:22:37,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:22:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:22:37,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:22:37,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2022-11-16 11:22:37,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 224 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:37,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:22:37,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2022-11-16 11:22:37,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:22:43,275 INFO L130 PetriNetUnfolder]: 4437/7987 cut-off events. [2022-11-16 11:22:43,275 INFO L131 PetriNetUnfolder]: For 1010/1024 co-relation queries the response was YES. [2022-11-16 11:22:43,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14353 conditions, 7987 events. 4437/7987 cut-off events. For 1010/1024 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 56864 event pairs, 2142 based on Foata normal form. 638/3197 useless extension candidates. Maximal degree in co-relation 6922. Up to 2896 conditions per place. [2022-11-16 11:22:43,356 INFO L137 encePairwiseOnDemand]: 207/248 looper letters, 84 selfloop transitions, 9 changer transitions 5/239 dead transitions. [2022-11-16 11:22:43,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 239 transitions, 694 flow [2022-11-16 11:22:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:22:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:22:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 984 transitions. [2022-11-16 11:22:43,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7935483870967742 [2022-11-16 11:22:43,374 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 984 transitions. [2022-11-16 11:22:43,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 984 transitions. [2022-11-16 11:22:43,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:22:43,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 984 transitions. [2022-11-16 11:22:43,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 196.8) internal successors, (984), 5 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:43,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:43,399 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:43,401 INFO L175 Difference]: Start difference. First operand has 219 places, 224 transitions, 463 flow. Second operand 5 states and 984 transitions. [2022-11-16 11:22:43,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 239 transitions, 694 flow [2022-11-16 11:22:43,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 239 transitions, 676 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:22:43,416 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 455 flow [2022-11-16 11:22:43,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=455, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-16 11:22:43,421 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -16 predicate places. [2022-11-16 11:22:43,421 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 455 flow [2022-11-16 11:22:43,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:43,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:22:43,423 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:22:43,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:22:43,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-16 11:22:43,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash 300114495, now seen corresponding path program 1 times [2022-11-16 11:22:43,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:43,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525786228] [2022-11-16 11:22:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:43,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:43,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:22:43,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:22:43,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525786228] [2022-11-16 11:22:43,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525786228] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:22:43,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497568548] [2022-11-16 11:22:43,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:43,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:22:43,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:22:43,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:22:43,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:22:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:44,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:22:44,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:22:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:22:44,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:22:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:22:44,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497568548] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:22:44,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:22:44,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 11:22:44,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990804858] [2022-11-16 11:22:44,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:22:44,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:22:44,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:22:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:22:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:22:44,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2022-11-16 11:22:44,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 455 flow. Second operand has 12 states, 12 states have (on average 169.66666666666666) internal successors, (2036), 12 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:44,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:22:44,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2022-11-16 11:22:44,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:22:55,148 INFO L130 PetriNetUnfolder]: 11091/19853 cut-off events. [2022-11-16 11:22:55,148 INFO L131 PetriNetUnfolder]: For 747/782 co-relation queries the response was YES. [2022-11-16 11:22:55,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35042 conditions, 19853 events. 11091/19853 cut-off events. For 747/782 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 151974 event pairs, 5355 based on Foata normal form. 6/6314 useless extension candidates. Maximal degree in co-relation 27832. Up to 2889 conditions per place. [2022-11-16 11:22:55,325 INFO L137 encePairwiseOnDemand]: 233/248 looper letters, 186 selfloop transitions, 40 changer transitions 0/367 dead transitions. [2022-11-16 11:22:55,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 367 transitions, 1319 flow [2022-11-16 11:22:55,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:22:55,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:22:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3238 transitions. [2022-11-16 11:22:55,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.725358422939068 [2022-11-16 11:22:55,335 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3238 transitions. [2022-11-16 11:22:55,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3238 transitions. [2022-11-16 11:22:55,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:22:55,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3238 transitions. [2022-11-16 11:22:55,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 179.88888888888889) internal successors, (3238), 18 states have internal predecessors, (3238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:55,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 248.0) internal successors, (4712), 19 states have internal predecessors, (4712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:55,359 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 248.0) internal successors, (4712), 19 states have internal predecessors, (4712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:55,359 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 455 flow. Second operand 18 states and 3238 transitions. [2022-11-16 11:22:55,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 367 transitions, 1319 flow [2022-11-16 11:22:55,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 367 transitions, 1314 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:22:55,369 INFO L231 Difference]: Finished difference. Result has 218 places, 225 transitions, 688 flow [2022-11-16 11:22:55,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=688, PETRI_PLACES=218, PETRI_TRANSITIONS=225} [2022-11-16 11:22:55,371 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -1 predicate places. [2022-11-16 11:22:55,371 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 225 transitions, 688 flow [2022-11-16 11:22:55,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 169.66666666666666) internal successors, (2036), 12 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:55,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:22:55,374 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:22:55,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 11:22:55,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-16 11:22:55,588 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-16 11:22:55,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:22:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash 713616129, now seen corresponding path program 1 times [2022-11-16 11:22:55,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:22:55,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976876699] [2022-11-16 11:22:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:22:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:22:55,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:22:55,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976876699] [2022-11-16 11:22:55,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976876699] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:22:55,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838277873] [2022-11-16 11:22:55,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:22:55,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:22:55,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:22:55,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:22:55,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:22:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:22:56,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:22:56,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:22:56,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:22:56,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:22:56,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838277873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:22:56,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:22:56,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:22:56,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500722087] [2022-11-16 11:22:56,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:22:56,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:22:56,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:22:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:22:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:22:56,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 248 [2022-11-16 11:22:56,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 225 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:22:56,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:22:56,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 248 [2022-11-16 11:22:56,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:23:06,136 INFO L130 PetriNetUnfolder]: 11091/19845 cut-off events. [2022-11-16 11:23:06,137 INFO L131 PetriNetUnfolder]: For 841/876 co-relation queries the response was YES. [2022-11-16 11:23:06,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35079 conditions, 19845 events. 11091/19845 cut-off events. For 841/876 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 152190 event pairs, 5355 based on Foata normal form. 8/6308 useless extension candidates. Maximal degree in co-relation 28032. Up to 11512 conditions per place. [2022-11-16 11:23:06,331 INFO L137 encePairwiseOnDemand]: 237/248 looper letters, 85 selfloop transitions, 27 changer transitions 0/253 dead transitions. [2022-11-16 11:23:06,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 253 transitions, 940 flow [2022-11-16 11:23:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:23:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:23:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1262 transitions. [2022-11-16 11:23:06,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7269585253456221 [2022-11-16 11:23:06,338 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1262 transitions. [2022-11-16 11:23:06,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1262 transitions. [2022-11-16 11:23:06,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:23:06,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1262 transitions. [2022-11-16 11:23:06,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.28571428571428) internal successors, (1262), 7 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:06,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:06,350 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:06,351 INFO L175 Difference]: Start difference. First operand has 218 places, 225 transitions, 688 flow. Second operand 7 states and 1262 transitions. [2022-11-16 11:23:06,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 253 transitions, 940 flow [2022-11-16 11:23:06,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 253 transitions, 866 flow, removed 26 selfloop flow, removed 5 redundant places. [2022-11-16 11:23:06,362 INFO L231 Difference]: Finished difference. Result has 213 places, 217 transitions, 614 flow [2022-11-16 11:23:06,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=614, PETRI_PLACES=213, PETRI_TRANSITIONS=217} [2022-11-16 11:23:06,365 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -6 predicate places. [2022-11-16 11:23:06,366 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 217 transitions, 614 flow [2022-11-16 11:23:06,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:06,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:23:06,367 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:06,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:23:06,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:23:06,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-16 11:23:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1345892481, now seen corresponding path program 2 times [2022-11-16 11:23:06,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:06,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345347615] [2022-11-16 11:23:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:06,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:06,999 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:07,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:07,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345347615] [2022-11-16 11:23:07,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345347615] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:23:07,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882392330] [2022-11-16 11:23:07,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:23:07,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:23:07,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:23:07,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:23:07,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:23:07,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:23:07,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:23:07,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:23:07,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:23:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 11:23:07,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:23:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-16 11:23:07,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882392330] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:23:07,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:23:07,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-11-16 11:23:07,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108819073] [2022-11-16 11:23:07,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:23:07,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:23:07,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:23:07,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:23:07,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 248 [2022-11-16 11:23:07,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 217 transitions, 614 flow. Second operand has 18 states, 18 states have (on average 150.61111111111111) internal successors, (2711), 18 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:07,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:23:07,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 248 [2022-11-16 11:23:07,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:23:22,817 INFO L130 PetriNetUnfolder]: 19454/34580 cut-off events. [2022-11-16 11:23:22,817 INFO L131 PetriNetUnfolder]: For 831/831 co-relation queries the response was YES. [2022-11-16 11:23:22,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62314 conditions, 34580 events. 19454/34580 cut-off events. For 831/831 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 282181 event pairs, 11501 based on Foata normal form. 4/11316 useless extension candidates. Maximal degree in co-relation 53119. Up to 3769 conditions per place. [2022-11-16 11:23:23,088 INFO L137 encePairwiseOnDemand]: 229/248 looper letters, 295 selfloop transitions, 53 changer transitions 0/469 dead transitions. [2022-11-16 11:23:23,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 469 transitions, 1892 flow [2022-11-16 11:23:23,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:23:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:23:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3880 transitions. [2022-11-16 11:23:23,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6518817204301075 [2022-11-16 11:23:23,102 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3880 transitions. [2022-11-16 11:23:23,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3880 transitions. [2022-11-16 11:23:23,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:23:23,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3880 transitions. [2022-11-16 11:23:23,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 161.66666666666666) internal successors, (3880), 24 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:23,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:23,131 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 248.0) internal successors, (6200), 25 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:23,131 INFO L175 Difference]: Start difference. First operand has 213 places, 217 transitions, 614 flow. Second operand 24 states and 3880 transitions. [2022-11-16 11:23:23,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 469 transitions, 1892 flow [2022-11-16 11:23:23,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 469 transitions, 1834 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-11-16 11:23:23,142 INFO L231 Difference]: Finished difference. Result has 226 places, 227 transitions, 719 flow [2022-11-16 11:23:23,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=719, PETRI_PLACES=226, PETRI_TRANSITIONS=227} [2022-11-16 11:23:23,144 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, 7 predicate places. [2022-11-16 11:23:23,144 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 227 transitions, 719 flow [2022-11-16 11:23:23,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 150.61111111111111) internal successors, (2711), 18 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:23,146 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:23:23,147 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:23:23,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:23:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f105ad0-2eb1-4965-ab59-d013c7b47e72/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:23:23,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2022-11-16 11:23:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:23:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1599506789, now seen corresponding path program 1 times [2022-11-16 11:23:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:23:23,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836802594] [2022-11-16 11:23:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:23:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:23:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:23:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:23:23,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:23:23,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836802594] [2022-11-16 11:23:23,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836802594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:23:23,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:23:23,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:23:23,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068311264] [2022-11-16 11:23:23,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:23:23,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:23:23,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:23:23,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:23:23,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:23:23,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 248 [2022-11-16 11:23:23,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 227 transitions, 719 flow. Second operand has 7 states, 7 states have (on average 160.28571428571428) internal successors, (1122), 7 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:23:23,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:23:23,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 248 [2022-11-16 11:23:23,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand