./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- 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-2329fc7 [2022-12-13 07:01:55,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 07:01:55,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 07:01:55,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 07:01:55,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 07:01:55,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 07:01:55,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 07:01:55,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 07:01:55,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 07:01:55,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 07:01:55,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 07:01:55,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 07:01:55,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 07:01:55,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 07:01:55,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 07:01:55,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 07:01:55,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 07:01:55,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 07:01:55,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 07:01:55,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 07:01:55,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 07:01:55,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 07:01:55,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 07:01:55,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 07:01:55,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 07:01:55,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 07:01:55,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 07:01:55,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 07:01:55,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 07:01:55,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 07:01:55,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 07:01:55,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 07:01:55,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 07:01:55,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 07:01:55,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 07:01:55,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 07:01:55,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 07:01:55,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 07:01:55,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 07:01:55,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 07:01:55,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 07:01:55,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-12-13 07:01:55,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 07:01:55,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 07:01:55,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 07:01:55,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 07:01:55,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 07:01:55,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 07:01:55,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 07:01:55,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 07:01:55,789 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 07:01:55,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 07:01:55,789 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 07:01:55,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 07:01:55,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 07:01:55,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 07:01:55,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 07:01:55,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 07:01:55,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 07:01:55,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 07:01:55,795 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 07:01:55,796 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 07:01:55,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 07:01:55,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 07:01:55,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 07:01:55,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 07:01:55,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 07:01:55,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 07:01:55,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:01:55,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 07:01:55,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 07:01:55,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 07:01:55,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 07:01:55,798 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 07:01:55,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 07:01:55,798 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 07:01:55,799 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-12-13 07:01:55,799 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 07:01:55,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 07:01:55,799 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 07:01:55,799 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 07:01:55,800 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_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2022-12-13 07:01:55,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 07:01:55,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 07:01:55,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 07:01:55,998 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 07:01:55,999 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 07:01:56,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-12-13 07:01:58,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 07:01:58,799 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 07:01:58,800 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-12-13 07:01:58,810 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/data/a2c1ea504/5461186b5cd743a58eb1aa64c21bbaf3/FLAG96709b971 [2022-12-13 07:01:58,820 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/data/a2c1ea504/5461186b5cd743a58eb1aa64c21bbaf3 [2022-12-13 07:01:58,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 07:01:58,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 07:01:58,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 07:01:58,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 07:01:58,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 07:01:58,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:58" (1/1) ... [2022-12-13 07:01:58,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c257933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:58, skipping insertion in model container [2022-12-13 07:01:58,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:58" (1/1) ... [2022-12-13 07:01:58,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 07:01:58,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 07:01:59,199 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2022-12-13 07:01:59,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:01:59,246 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 07:01:59,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2022-12-13 07:01:59,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 07:01:59,334 INFO L208 MainTranslator]: Completed translation [2022-12-13 07:01:59,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59 WrapperNode [2022-12-13 07:01:59,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 07:01:59,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 07:01:59,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 07:01:59,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 07:01:59,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,385 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 359 [2022-12-13 07:01:59,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 07:01:59,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 07:01:59,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 07:01:59,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 07:01:59,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,422 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 07:01:59,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 07:01:59,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 07:01:59,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 07:01:59,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (1/1) ... [2022-12-13 07:01:59,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 07:01:59,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:01:59,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 07:01:59,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 07:01:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 07:01:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 07:01:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-12-13 07:01:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-12-13 07:01:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 07:01:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 07:01:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 07:01:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 07:01:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 07:01:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 07:01:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 07:01:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 07:01:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 07:01:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-12-13 07:01:59,491 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-12-13 07:01:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 07:01:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 07:01:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 07:01:59,493 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 07:01:59,598 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 07:01:59,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 07:01:59,962 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 07:01:59,970 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 07:01:59,970 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-12-13 07:01:59,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:59 BoogieIcfgContainer [2022-12-13 07:01:59,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 07:01:59,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 07:01:59,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 07:01:59,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 07:01:59,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:01:58" (1/3) ... [2022-12-13 07:01:59,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d40bc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:59, skipping insertion in model container [2022-12-13 07:01:59,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:59" (2/3) ... [2022-12-13 07:01:59,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d40bc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:59, skipping insertion in model container [2022-12-13 07:01:59,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:59" (3/3) ... [2022-12-13 07:01:59,978 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2022-12-13 07:01:59,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 07:01:59,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 07:01:59,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-12-13 07:01:59,991 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 07:02:00,065 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-12-13 07:02:00,099 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:00,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:00,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:00,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:00,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 07:02:00,132 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:00,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 07:02:00,145 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:00,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 07:02:00,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:02:00,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash -867541534, now seen corresponding path program 1 times [2022-12-13 07:02:00,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:00,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328670831] [2022-12-13 07:02:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:00,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:02:01,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:01,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328670831] [2022-12-13 07:02:01,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328670831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:01,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:01,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:02:01,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232776510] [2022-12-13 07:02:01,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:01,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:01,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:01,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:01,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:01,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:01,042 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:01,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:01,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:01,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 07:02:01,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:02:01,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:01,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1125256071, now seen corresponding path program 1 times [2022-12-13 07:02:01,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:01,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131259287] [2022-12-13 07:02:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:01,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 07:02:01,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 07:02:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 07:02:01,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 07:02:01,272 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 07:02:01,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2022-12-13 07:02:01,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 07:02:01,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 07:02:01,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 07:02:01,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 07:02:01,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 07:02:01,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2022-12-13 07:02:01,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2022-12-13 07:02:01,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2022-12-13 07:02:01,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 07:02:01,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 07:02:01,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 07:02:01,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 07:02:01,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2022-12-13 07:02:01,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 15 remaining) [2022-12-13 07:02:01,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 07:02:01,282 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 07:02:01,283 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/3) [2022-12-13 07:02:01,284 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 07:02:01,284 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 07:02:01,354 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-13 07:02:01,359 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:01,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:01,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:01,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:01,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-12-13 07:02:01,397 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:01,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of2ForFork2 ======== [2022-12-13 07:02:01,398 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:01,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:02:01,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2147089883, now seen corresponding path program 1 times [2022-12-13 07:02:01,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:01,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89644657] [2022-12-13 07:02:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:01,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:01,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89644657] [2022-12-13 07:02:01,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89644657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:01,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:01,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:02:01,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147838375] [2022-12-13 07:02:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:01,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:02:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:01,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:02:01,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:02:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:01,960 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:01,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:01,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:02,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:02,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 07:02:02,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:02,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash 901524601, now seen corresponding path program 1 times [2022-12-13 07:02:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:02,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186503998] [2022-12-13 07:02:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:02,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:02,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:02,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186503998] [2022-12-13 07:02:02,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186503998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:02,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:02,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:02,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696327658] [2022-12-13 07:02:02,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:02,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:02,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:02,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:02,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:02,298 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:02,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:02,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:02,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:02,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 07:02:02,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash -832693819, now seen corresponding path program 1 times [2022-12-13 07:02:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:02,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427372534] [2022-12-13 07:02:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:02,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:02,770 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:02,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:02,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427372534] [2022-12-13 07:02:02,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427372534] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:02,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950395543] [2022-12-13 07:02:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:02,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:02,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:02,772 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:02,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 07:02:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:03,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 07:02:03,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:03,128 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:03,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:03,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950395543] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:03,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:03,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-12-13 07:02:03,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307488628] [2022-12-13 07:02:03,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:03,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 07:02:03,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 07:02:03,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-13 07:02:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:03,264 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:03,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.5) internal successors, (357), 14 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:03,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:03,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:03,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:04,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:02:04,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:02:04,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:02:04,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:02:04,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:02:04,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 07:02:04,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:04,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 07:02:04,873 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread1of2ForFork2 was SAFE,SAFE,SAFE,SAFE (1/5) [2022-12-13 07:02:04,898 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:04,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:04,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:04,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:04,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-12-13 07:02:04,915 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:04,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread1of2ForFork1 ======== [2022-12-13 07:02:04,917 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:04,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:02:05,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 215484447, now seen corresponding path program 1 times [2022-12-13 07:02:05,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:05,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146964797] [2022-12-13 07:02:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:05,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:05,652 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 07:02:05,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:05,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146964797] [2022-12-13 07:02:05,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146964797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:05,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:05,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:02:05,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095491210] [2022-12-13 07:02:05,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:05,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:02:05,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:05,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:02:05,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:02:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:05,656 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:05,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:05,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:06,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:06,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 07:02:06,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash -68664584, now seen corresponding path program 1 times [2022-12-13 07:02:06,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:06,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789869123] [2022-12-13 07:02:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:06,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:06,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:06,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789869123] [2022-12-13 07:02:06,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789869123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:06,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:06,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 07:02:06,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969461496] [2022-12-13 07:02:06,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:06,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:02:06,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:02:06,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:02:06,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:06,808 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:06,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.833333333333336) internal successors, (281), 6 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:06,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:06,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:07,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 07:02:07,598 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:07,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:07,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1200424490, now seen corresponding path program 1 times [2022-12-13 07:02:07,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:07,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100230757] [2022-12-13 07:02:07,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:07,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 07:02:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:07,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100230757] [2022-12-13 07:02:07,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100230757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:07,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:07,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:07,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820314347] [2022-12-13 07:02:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:07,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:07,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:07,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:07,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:07,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:07,783 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:07,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:07,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:07,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:07,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:08,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 07:02:08,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:08,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash -144054624, now seen corresponding path program 1 times [2022-12-13 07:02:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:08,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148155116] [2022-12-13 07:02:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:08,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:08,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148155116] [2022-12-13 07:02:08,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148155116] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:08,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713967907] [2022-12-13 07:02:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:08,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:08,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:08,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 07:02:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:08,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 07:02:08,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:08,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:08,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713967907] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:08,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:08,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-12-13 07:02:08,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399061854] [2022-12-13 07:02:08,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:08,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 07:02:08,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:08,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 07:02:08,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-13 07:02:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:08,902 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:08,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 30.857142857142858) internal successors, (432), 14 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:08,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:08,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:08,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:08,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:02:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:02:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:02:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:02:10,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:02:10,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 07:02:10,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 07:02:10,226 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 07:02:10,226 INFO L307 ceAbstractionStarter]: Result for error location t3_funThread1of2ForFork1 was SAFE,SAFE,SAFE,SAFE (2/5) [2022-12-13 07:02:10,229 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:10,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:10,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:10,230 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:10,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2022-12-13 07:02:10,236 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:10,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread2of2ForFork2 ======== [2022-12-13 07:02:10,237 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:10,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:02:10,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:10,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1484759376, now seen corresponding path program 1 times [2022-12-13 07:02:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:10,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451855237] [2022-12-13 07:02:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:10,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:10,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451855237] [2022-12-13 07:02:10,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451855237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:10,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:10,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:02:10,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137902874] [2022-12-13 07:02:10,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:10,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:02:10,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:10,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:02:10,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:02:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:10,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:10,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 07:02:10,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:10,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:10,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1619999853, now seen corresponding path program 1 times [2022-12-13 07:02:10,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:10,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642551060] [2022-12-13 07:02:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:10,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:10,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:10,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642551060] [2022-12-13 07:02:10,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642551060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:10,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:10,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:02:10,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462451633] [2022-12-13 07:02:10,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:10,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:02:10,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:10,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:02:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 07:02:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,940 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:10,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:10,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:10,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:11,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 07:02:11,289 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:11,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:11,290 INFO L85 PathProgramCache]: Analyzing trace with hash 447662361, now seen corresponding path program 1 times [2022-12-13 07:02:11,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:11,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062891223] [2022-12-13 07:02:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:11,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:11,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:11,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062891223] [2022-12-13 07:02:11,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062891223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:11,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:11,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 07:02:11,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753562737] [2022-12-13 07:02:11,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:11,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:02:11,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:11,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:02:11,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:02:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:11,674 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:11,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.166666666666664) internal successors, (253), 6 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:11,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:11,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:11,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:11,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 07:02:11,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:11,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:11,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1559399349, now seen corresponding path program 2 times [2022-12-13 07:02:11,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:11,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322041757] [2022-12-13 07:02:11,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:11,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:12,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:12,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322041757] [2022-12-13 07:02:12,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322041757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:12,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:12,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 07:02:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866102178] [2022-12-13 07:02:12,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:12,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 07:02:12,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:12,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 07:02:12,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 07:02:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:12,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:12,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:12,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:12,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:12,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 07:02:12,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:12,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:12,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1946888891, now seen corresponding path program 3 times [2022-12-13 07:02:12,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:12,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509264266] [2022-12-13 07:02:12,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:12,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:12,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509264266] [2022-12-13 07:02:12,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509264266] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:12,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407832129] [2022-12-13 07:02:12,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 07:02:12,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:12,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:12,861 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:12,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 07:02:13,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 07:02:13,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 07:02:13,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 07:02:13,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 07:02:13,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:02:13,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407832129] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:13,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:02:13,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-12-13 07:02:13,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129591140] [2022-12-13 07:02:13,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:13,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 07:02:13,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:13,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 07:02:13,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 07:02:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,299 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:13,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:13,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:13,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:13,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:13,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:13,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:02:13,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 07:02:13,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 07:02:13,632 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:13,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2003155261, now seen corresponding path program 1 times [2022-12-13 07:02:13,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:13,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154486947] [2022-12-13 07:02:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:13,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 07:02:13,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:13,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154486947] [2022-12-13 07:02:13,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154486947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:13,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:13,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:13,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010076579] [2022-12-13 07:02:13,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:13,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:13,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:13,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:13,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:13,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,765 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:13,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:02:13,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:13,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:02:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:13,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 07:02:13,899 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:13,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1976591711, now seen corresponding path program 1 times [2022-12-13 07:02:13,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:13,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295268449] [2022-12-13 07:02:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:13,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 07:02:14,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:14,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295268449] [2022-12-13 07:02:14,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295268449] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:14,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739855633] [2022-12-13 07:02:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:14,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:14,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:14,059 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:14,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 07:02:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:14,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 07:02:14,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:14,370 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 07:02:14,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-13 07:02:14,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739855633] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:14,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:14,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-12-13 07:02:14,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910847155] [2022-12-13 07:02:14,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:14,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 07:02:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:14,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 07:02:14,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-13 07:02:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:14,457 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:14,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 27.5) internal successors, (385), 14 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:14,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 07:02:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 07:02:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:02:15,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:02:15,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:02:15,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:02:15,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:02:15,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 07:02:15,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 07:02:15,819 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2022-12-13 07:02:15,820 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread2of2ForFork2 was SAFE,SAFE,SAFE,SAFE (3/5) [2022-12-13 07:02:15,838 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:15,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:15,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:15,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:15,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2022-12-13 07:02:15,853 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:15,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread2of2ForFork1 ======== [2022-12-13 07:02:15,854 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:15,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:02:16,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:16,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:16,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1784098202, now seen corresponding path program 1 times [2022-12-13 07:02:16,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:16,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034713985] [2022-12-13 07:02:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:16,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 07:02:16,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:16,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034713985] [2022-12-13 07:02:16,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034713985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:16,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:16,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:02:16,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354961158] [2022-12-13 07:02:16,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:16,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:02:16,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:16,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:02:16,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:02:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:16,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:16,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:16,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:16,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 07:02:16,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:16,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:16,769 INFO L85 PathProgramCache]: Analyzing trace with hash 853557990, now seen corresponding path program 1 times [2022-12-13 07:02:16,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:16,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58474801] [2022-12-13 07:02:16,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:16,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:17,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:17,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58474801] [2022-12-13 07:02:17,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58474801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:17,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:17,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 07:02:17,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454008295] [2022-12-13 07:02:17,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:17,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:02:17,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:17,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:02:17,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:02:17,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:17,130 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:17,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.5) internal successors, (321), 6 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:17,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:17,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:17,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 07:02:17,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:17,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1568843538, now seen corresponding path program 1 times [2022-12-13 07:02:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:17,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683594850] [2022-12-13 07:02:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:17,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 07:02:18,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:18,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683594850] [2022-12-13 07:02:18,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683594850] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:18,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:18,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:02:18,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881261111] [2022-12-13 07:02:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:18,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:02:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:18,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:02:18,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 07:02:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:18,007 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:18,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:18,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:18,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:18,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:18,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 07:02:18,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash -51589522, now seen corresponding path program 1 times [2022-12-13 07:02:18,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:18,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748087604] [2022-12-13 07:02:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:18,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:18,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:18,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748087604] [2022-12-13 07:02:18,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748087604] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:18,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627866016] [2022-12-13 07:02:18,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:18,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:18,824 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:18,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 07:02:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:19,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 07:02:19,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:19,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 07:02:19,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627866016] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:19,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:19,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-12-13 07:02:19,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683145666] [2022-12-13 07:02:19,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:19,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 07:02:19,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 07:02:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-13 07:02:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:19,299 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:19,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 33.214285714285715) internal successors, (465), 14 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:19,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:19,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:19,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:19,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:02:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 07:02:20,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:02:20,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:02:20,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:02:20,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:02:20,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 07:02:20,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:20,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 07:02:20,493 INFO L307 ceAbstractionStarter]: Result for error location t3_funThread2of2ForFork1 was SAFE,SAFE,SAFE,SAFE (4/5) [2022-12-13 07:02:20,497 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:20,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:20,498 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:20,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2022-12-13 07:02:20,501 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:20,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 07:02:20,502 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:20,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 07:02:20,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:02:20,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:20,677 INFO L85 PathProgramCache]: Analyzing trace with hash 680832410, now seen corresponding path program 1 times [2022-12-13 07:02:20,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:20,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387724735] [2022-12-13 07:02:20,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:20,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:02:20,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:20,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387724735] [2022-12-13 07:02:20,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387724735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:20,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:20,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:02:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727834968] [2022-12-13 07:02:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:20,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:20,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:20,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:20,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:20,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:20,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:20,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:20,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:20,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:20,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 07:02:20,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:02:20,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:20,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1302687575, now seen corresponding path program 1 times [2022-12-13 07:02:20,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:20,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042927271] [2022-12-13 07:02:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:20,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:20,922 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:02:20,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:20,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042927271] [2022-12-13 07:02:20,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042927271] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:20,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223397580] [2022-12-13 07:02:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:20,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:20,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:20,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:20,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 07:02:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:21,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 07:02:21,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:02:21,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:02:21,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223397580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:21,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:02:21,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 07:02:21,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004441732] [2022-12-13 07:02:21,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:21,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:02:21,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:21,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:02:21,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 07:02:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:21,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:21,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.0) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:21,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:21,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:02:21,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 07:02:21,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:21,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:02:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1728610861, now seen corresponding path program 1 times [2022-12-13 07:02:21,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:21,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214687742] [2022-12-13 07:02:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:21,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 07:02:21,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:21,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214687742] [2022-12-13 07:02:21,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214687742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:21,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:21,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:02:21,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128413669] [2022-12-13 07:02:21,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:21,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:21,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:21,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:21,599 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:21,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:21,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:21,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:02:21,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:02:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:21,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 07:02:21,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:02:21,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1736453582, now seen corresponding path program 1 times [2022-12-13 07:02:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:21,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768609944] [2022-12-13 07:02:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 07:02:21,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 07:02:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 07:02:21,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 07:02:21,789 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 07:02:21,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2022-12-13 07:02:21,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 15 remaining) [2022-12-13 07:02:21,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 07:02:21,791 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 07:02:21,792 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (5/5) [2022-12-13 07:02:21,792 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 07:02:21,792 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-13 07:02:21,852 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-12-13 07:02:21,856 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:21,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:02:21,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:21,857 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:02:21,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2022-12-13 07:02:21,860 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:02:21,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of3ForFork2 ======== [2022-12-13 07:02:21,861 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:02:21,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:02:22,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:22,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1959479927, now seen corresponding path program 1 times [2022-12-13 07:02:22,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:22,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238685140] [2022-12-13 07:02:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:22,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 07:02:22,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:22,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238685140] [2022-12-13 07:02:22,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238685140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:22,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:22,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:02:22,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749291004] [2022-12-13 07:02:22,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:22,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:02:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:02:22,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:02:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,399 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:22,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:22,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 07:02:22,507 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:22,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1461765734, now seen corresponding path program 1 times [2022-12-13 07:02:22,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:22,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267813057] [2022-12-13 07:02:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:22,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 07:02:22,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:22,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267813057] [2022-12-13 07:02:22,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267813057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:02:22,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:02:22,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:02:22,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159564387] [2022-12-13 07:02:22,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:02:22,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:02:22,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:22,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:02:22,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:02:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,614 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:22,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:22,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:22,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 07:02:22,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:02:22,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:02:22,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1048947211, now seen corresponding path program 1 times [2022-12-13 07:02:22,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:02:22,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664855236] [2022-12-13 07:02:22,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:22,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:02:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:02:23,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664855236] [2022-12-13 07:02:23,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664855236] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:02:23,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605500580] [2022-12-13 07:02:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:02:23,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:02:23,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:02:23,068 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:02:23,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 07:02:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:02:23,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 07:02:23,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:02:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:23,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:02:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:02:23,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605500580] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:02:23,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:02:23,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 07:02:23,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558273634] [2022-12-13 07:02:23,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:02:23,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 07:02:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:02:23,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 07:02:23,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 07:02:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:23,567 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:02:23,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 24.5) internal successors, (441), 18 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:02:23,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:02:23,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:02:23,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:03:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 07:03:05,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:03:05,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:03:05,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:03:05,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:03:05,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 07:03:06,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 07:03:06,116 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 07:03:06,116 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread1of3ForFork2 was SAFE,SAFE,SAFE,SAFE (1/7) [2022-12-13 07:03:06,123 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:03:06,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:03:06,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:03:06,124 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:03:06,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2022-12-13 07:03:06,128 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:03:06,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread1of3ForFork1 ======== [2022-12-13 07:03:06,128 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:03:06,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:03:06,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:03:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:03:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash -421996297, now seen corresponding path program 1 times [2022-12-13 07:03:06,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:03:06,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429035024] [2022-12-13 07:03:06,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:03:06,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:03:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:03:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 07:03:06,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:03:06,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429035024] [2022-12-13 07:03:06,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429035024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:03:06,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:03:06,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:03:06,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098567416] [2022-12-13 07:03:06,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:03:06,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:03:06,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:03:06,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:03:06,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:03:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:06,842 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:03:06,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 167.0) internal successors, (334), 2 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:03:06,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:15,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:15,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 07:03:15,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:03:15,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:03:15,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1700167711, now seen corresponding path program 1 times [2022-12-13 07:03:15,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:03:15,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330243272] [2022-12-13 07:03:15,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:03:15,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:03:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:03:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 07:03:15,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:03:15,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330243272] [2022-12-13 07:03:15,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330243272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:03:15,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:03:15,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 07:03:15,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703350582] [2022-12-13 07:03:15,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:03:15,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:03:15,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:03:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:03:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:03:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:15,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:03:15,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:03:15,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:15,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:03:21,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 07:03:21,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:03:21,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:03:21,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1184029252, now seen corresponding path program 1 times [2022-12-13 07:03:21,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:03:21,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893998416] [2022-12-13 07:03:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:03:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:03:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:03:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:03:21,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:03:21,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893998416] [2022-12-13 07:03:21,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893998416] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:03:21,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245253153] [2022-12-13 07:03:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:03:21,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:03:21,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:03:21,898 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:03:21,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 07:03:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:03:22,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 07:03:22,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:03:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:03:22,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:03:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:03:22,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245253153] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:03:22,439 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:03:22,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 07:03:22,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123305176] [2022-12-13 07:03:22,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:03:22,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 07:03:22,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:03:22,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 07:03:22,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 07:03:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:22,441 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:03:22,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 31.27777777777778) internal successors, (563), 18 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:03:22,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:03:22,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:03:22,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:04:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 07:04:02,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:04:02,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:04:02,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:04:02,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:04:02,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 07:04:03,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:04:03,157 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 07:04:03,158 INFO L307 ceAbstractionStarter]: Result for error location t3_funThread1of3ForFork1 was SAFE,SAFE,SAFE,SAFE (2/7) [2022-12-13 07:04:03,180 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:04:03,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:04:03,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:04:03,183 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:04:03,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2022-12-13 07:04:03,189 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:04:03,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread2of3ForFork2 ======== [2022-12-13 07:04:03,190 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:04:03,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:04:03,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:04:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:04:03,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1560686134, now seen corresponding path program 1 times [2022-12-13 07:04:03,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:04:03,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023939734] [2022-12-13 07:04:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:04:03,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:04:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:04:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:04:03,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:04:03,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023939734] [2022-12-13 07:04:03,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023939734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:04:03,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:04:03,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:04:03,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163816936] [2022-12-13 07:04:03,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:04:03,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:04:03,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:04:03,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:04:03,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:04:03,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:03,768 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:04:03,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:04:03,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:04,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 07:04:04,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:04:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:04:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1176940103, now seen corresponding path program 1 times [2022-12-13 07:04:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:04:04,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442698966] [2022-12-13 07:04:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:04:04,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:04:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:04:04,223 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:04:04,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:04:04,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442698966] [2022-12-13 07:04:04,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442698966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:04:04,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:04:04,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:04:04,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343492735] [2022-12-13 07:04:04,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:04:04,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:04:04,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:04:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:04:04,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 07:04:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:04,224 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:04:04,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:04:04,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:04,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:04,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:04,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:04:04,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 07:04:04,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:04:04,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:04:04,603 INFO L85 PathProgramCache]: Analyzing trace with hash -872386017, now seen corresponding path program 1 times [2022-12-13 07:04:04,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:04:04,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047544631] [2022-12-13 07:04:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:04:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:04:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:04:04,803 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:04:04,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:04:04,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047544631] [2022-12-13 07:04:04,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047544631] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:04:04,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658696930] [2022-12-13 07:04:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:04:04,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:04:04,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:04:04,805 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:04:04,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 07:04:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:04:05,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 07:04:05,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:04:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:04:05,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:04:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 07:04:05,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658696930] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:04:05,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:04:05,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 07:04:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334137481] [2022-12-13 07:04:05,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:04:05,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 07:04:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:04:05,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 07:04:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 07:04:05,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:05,374 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:04:05,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 26.055555555555557) internal successors, (469), 18 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:04:05,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:05,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:04:05,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:04:47,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 07:04:47,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:04:47,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:04:47,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:04:47,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:04:47,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-12-13 07:04:47,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:04:47,274 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 07:04:47,275 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread2of3ForFork2 was SAFE,SAFE,SAFE,SAFE (3/7) [2022-12-13 07:04:47,281 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:04:47,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:04:47,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:04:47,282 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:04:47,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2022-12-13 07:04:47,287 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:04:47,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread2of3ForFork1 ======== [2022-12-13 07:04:47,287 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:04:47,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:04:47,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:04:47,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:04:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1237729661, now seen corresponding path program 1 times [2022-12-13 07:04:47,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:04:47,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87572429] [2022-12-13 07:04:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:04:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:04:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:04:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-12-13 07:04:48,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:04:48,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87572429] [2022-12-13 07:04:48,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87572429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:04:48,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:04:48,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:04:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613229191] [2022-12-13 07:04:48,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:04:48,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:04:48,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:04:48,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:04:48,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:04:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:48,076 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:04:48,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 184.5) internal successors, (369), 2 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:04:48,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:56,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 07:04:56,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:04:56,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:04:56,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1213900718, now seen corresponding path program 1 times [2022-12-13 07:04:56,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:04:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925146540] [2022-12-13 07:04:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:04:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:04:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:04:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-12-13 07:04:56,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:04:56,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925146540] [2022-12-13 07:04:56,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925146540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:04:56,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:04:56,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:04:56,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840062975] [2022-12-13 07:04:56,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:04:56,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:04:56,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:04:56,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:04:56,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 07:04:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:56,813 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:04:56,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:04:56,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:04:56,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:05:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:05:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:05:03,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 07:05:03,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:05:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:05:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 277546004, now seen corresponding path program 1 times [2022-12-13 07:05:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:05:03,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58819659] [2022-12-13 07:05:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:05:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:05:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:05:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-13 07:05:04,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:05:04,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58819659] [2022-12-13 07:05:04,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58819659] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:05:04,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625593690] [2022-12-13 07:05:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:05:04,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:05:04,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:05:04,555 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:05:04,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 07:05:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:05:04,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 07:05:04,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:05:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:05:05,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:05:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 07:05:05,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625593690] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:05:05,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:05:05,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 9] total 33 [2022-12-13 07:05:05,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196122895] [2022-12-13 07:05:05,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:05:05,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-13 07:05:05,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:05:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-13 07:05:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 07:05:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:05:05,379 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:05:05,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 26.90909090909091) internal successors, (888), 33 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:05:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:05:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:05:05,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:07:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 07:07:30,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 07:07:30,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 07:07:30,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 07:07:30,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 07:07:30,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 07:07:31,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-13 07:07:31,149 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 07:07:31,149 INFO L307 ceAbstractionStarter]: Result for error location t3_funThread2of3ForFork1 was SAFE,SAFE,SAFE,SAFE (4/7) [2022-12-13 07:07:31,163 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:07:31,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:07:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:07:31,166 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:07:31,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2022-12-13 07:07:31,172 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:07:31,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-12-13 07:07:31,172 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:07:31,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 07:07:31,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:07:31,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1161561547, now seen corresponding path program 1 times [2022-12-13 07:07:31,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:31,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246930897] [2022-12-13 07:07:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:07:31,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:31,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246930897] [2022-12-13 07:07:31,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246930897] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:31,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:07:31,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:07:31,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394690136] [2022-12-13 07:07:31,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:31,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:07:31,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:07:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:07:31,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:31,453 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:31,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:31,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:31,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 07:07:31,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:07:31,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:31,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2142281848, now seen corresponding path program 1 times [2022-12-13 07:07:31,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:31,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984667614] [2022-12-13 07:07:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:31,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:07:31,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:31,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984667614] [2022-12-13 07:07:31,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984667614] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:07:31,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138298867] [2022-12-13 07:07:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:31,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:07:31,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:07:31,676 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:07:31,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 07:07:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:32,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 07:07:32,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:07:32,118 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 07:07:32,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 07:07:32,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138298867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:32,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 07:07:32,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 07:07:32,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073155774] [2022-12-13 07:07:32,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:32,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:07:32,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:32,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:07:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 07:07:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:32,120 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:32,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.0) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:32,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:32,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:07:32,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-12-13 07:07:32,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-13 07:07:32,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:07:32,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1986222131, now seen corresponding path program 1 times [2022-12-13 07:07:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:32,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20662402] [2022-12-13 07:07:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 07:07:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20662402] [2022-12-13 07:07:32,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20662402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:32,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:07:32,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:07:32,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088680650] [2022-12-13 07:07:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:32,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 07:07:32,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 07:07:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 07:07:32,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:32,523 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:32,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:32,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:32,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:07:32,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 07:07:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:32,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 07:07:32,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 12 more)] === [2022-12-13 07:07:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:32,671 INFO L85 PathProgramCache]: Analyzing trace with hash -236655139, now seen corresponding path program 1 times [2022-12-13 07:07:32,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:32,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422987106] [2022-12-13 07:07:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 07:07:32,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 07:07:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 07:07:32,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 07:07:32,898 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 07:07:32,898 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2022-12-13 07:07:32,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 07:07:32,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 07:07:32,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 07:07:32,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2022-12-13 07:07:32,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 15 remaining) [2022-12-13 07:07:32,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 07:07:32,901 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 07:07:32,901 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (5/7) [2022-12-13 07:07:32,901 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 07:07:32,901 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-12-13 07:07:33,136 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-12-13 07:07:33,142 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:07:33,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 07:07:33,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:07:33,143 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 07:07:33,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2022-12-13 07:07:33,147 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 07:07:33,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t3_funThread4of4ForFork1 ======== [2022-12-13 07:07:33,148 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=PARTIAL_ORDER_FA, 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;@71927335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 07:07:33,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 07:07:34,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:07:34,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:34,213 INFO L85 PathProgramCache]: Analyzing trace with hash 359530426, now seen corresponding path program 1 times [2022-12-13 07:07:34,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:34,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328909091] [2022-12-13 07:07:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:34,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-12-13 07:07:34,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:34,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328909091] [2022-12-13 07:07:34,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328909091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:34,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:07:34,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 07:07:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737846768] [2022-12-13 07:07:34,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:34,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 07:07:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:34,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 07:07:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 07:07:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:34,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:34,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 246.5) internal successors, (493), 2 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:34,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:45,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 07:07:45,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:07:45,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash 282651064, now seen corresponding path program 1 times [2022-12-13 07:07:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:45,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197440785] [2022-12-13 07:07:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:45,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-12-13 07:07:46,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:46,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197440785] [2022-12-13 07:07:46,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197440785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:46,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:07:46,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 07:07:46,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903586684] [2022-12-13 07:07:46,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:46,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:07:46,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:07:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:07:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:46,517 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:46,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:46,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:46,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:47,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 07:07:47,856 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:07:47,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:47,856 INFO L85 PathProgramCache]: Analyzing trace with hash -633045560, now seen corresponding path program 1 times [2022-12-13 07:07:47,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:47,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692815822] [2022-12-13 07:07:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:47,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-12-13 07:07:48,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:48,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692815822] [2022-12-13 07:07:48,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692815822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:48,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:07:48,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 07:07:48,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679587576] [2022-12-13 07:07:48,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:48,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 07:07:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:48,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 07:07:48,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 07:07:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:48,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:48,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:48,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:48,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:48,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:49,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 07:07:49,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:07:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash 600084278, now seen corresponding path program 1 times [2022-12-13 07:07:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:49,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873194277] [2022-12-13 07:07:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:49,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-12-13 07:07:49,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873194277] [2022-12-13 07:07:49,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873194277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 07:07:49,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 07:07:49,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 07:07:49,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087762917] [2022-12-13 07:07:49,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 07:07:49,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 07:07:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:49,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 07:07:49,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 07:07:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:49,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:49,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:49,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:49,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:49,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:49,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:07:51,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 07:07:51,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 07:07:51,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 07:07:51,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1843664484, now seen corresponding path program 1 times [2022-12-13 07:07:51,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 07:07:51,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705100560] [2022-12-13 07:07:51,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 07:07:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-12-13 07:07:52,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 07:07:52,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705100560] [2022-12-13 07:07:52,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705100560] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 07:07:52,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819996250] [2022-12-13 07:07:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 07:07:52,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 07:07:52,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 07:07:52,128 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 07:07:52,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d5da02c-a390-4c44-9ede-d755f0d8ea9d/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 07:07:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 07:07:52,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 2252 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 07:07:52,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 07:07:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-12-13 07:07:52,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 07:07:52,993 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-12-13 07:07:52,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819996250] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 07:07:52,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 07:07:52,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-12-13 07:07:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25966893] [2022-12-13 07:07:52,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 07:07:52,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 07:07:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 07:07:52,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 07:07:52,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-12-13 07:07:52,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:52,996 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 07:07:52,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 40.59090909090909) internal successors, (893), 22 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 07:07:52,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 07:07:52,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:52,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-12-13 07:07:52,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 07:07:52,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.