./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:18:47,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:18:47,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:18:47,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:18:47,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:18:47,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:18:47,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:18:47,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:18:47,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:18:47,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:18:47,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:18:47,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:18:47,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:18:47,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:18:47,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:18:47,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:18:47,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:18:47,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:18:47,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:18:47,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:18:47,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:18:47,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:18:47,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:18:47,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:18:47,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:18:47,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:18:47,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:18:47,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:18:47,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:18:47,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:18:47,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:18:47,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:18:47,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:18:47,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:18:47,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:18:47,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:18:47,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:18:47,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:18:47,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:18:47,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:18:47,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:18:47,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-23 14:18:47,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:18:47,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:18:47,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:18:47,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:18:47,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:18:47,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:18:47,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:18:47,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:18:47,698 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:18:47,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:18:47,698 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:18:47,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:18:47,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:18:47,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:18:47,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:18:47,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:18:47,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:18:47,700 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:18:47,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:18:47,700 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:18:47,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:18:47,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:18:47,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:18:47,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-23 14:18:47,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:18:47,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:18:47,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:18:47,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:18:47,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:18:47,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:18:47,711 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:18:47,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:18:47,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:18:47,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:18:47,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:18:47,712 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:18:47,713 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:18:47,713 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_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa [2021-11-23 14:18:48,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:18:48,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:18:48,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:18:48,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:18:48,078 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:18:48,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2021-11-23 14:18:48,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/cf61e6b3e/d0b18ab9606449e7a7c498cccc37f03f/FLAG6d399b785 [2021-11-23 14:18:48,703 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:18:48,703 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2021-11-23 14:18:48,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/cf61e6b3e/d0b18ab9606449e7a7c498cccc37f03f/FLAG6d399b785 [2021-11-23 14:18:49,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/cf61e6b3e/d0b18ab9606449e7a7c498cccc37f03f [2021-11-23 14:18:49,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:18:49,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:18:49,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:18:49,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:18:49,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:18:49,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7f3250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49, skipping insertion in model container [2021-11-23 14:18:49,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:18:49,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:18:49,350 WARN L230 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_ab54ac75-eed3-42aa-bbcd-7d29a570018f/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2021-11-23 14:18:49,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:18:49,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:18:49,396 WARN L230 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_ab54ac75-eed3-42aa-bbcd-7d29a570018f/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2021-11-23 14:18:49,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:18:49,422 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:18:49,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49 WrapperNode [2021-11-23 14:18:49,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:18:49,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:18:49,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:18:49,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:18:49,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,496 INFO L137 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 179 [2021-11-23 14:18:49,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:18:49,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:18:49,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:18:49,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:18:49,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:18:49,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:18:49,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:18:49,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:18:49,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (1/1) ... [2021-11-23 14:18:49,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:18:49,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:49,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:18:49,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:18:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:18:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:18:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:18:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:18:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 14:18:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 14:18:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 14:18:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 14:18:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 14:18:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 14:18:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:18:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 14:18:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 14:18:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:18:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:18:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:18:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:18:49,647 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:18:49,765 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:18:49,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:18:50,138 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:18:50,260 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:18:50,260 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 14:18:50,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:50 BoogieIcfgContainer [2021-11-23 14:18:50,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:18:50,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:18:50,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:18:50,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:18:50,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:49" (1/3) ... [2021-11-23 14:18:50,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77191bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:50, skipping insertion in model container [2021-11-23 14:18:50,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:49" (2/3) ... [2021-11-23 14:18:50,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77191bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:50, skipping insertion in model container [2021-11-23 14:18:50,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:50" (3/3) ... [2021-11-23 14:18:50,272 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2021-11-23 14:18:50,278 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:18:50,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:18:50,279 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:18:50,279 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:18:50,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,341 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,341 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,341 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,341 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,342 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,342 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,342 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,342 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,342 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,346 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,347 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,348 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,350 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,350 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,350 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,350 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,351 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,351 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,352 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,353 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,354 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:18:50,358 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-23 14:18:50,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:18:50,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:50,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:18:50,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:18:50,476 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-23 14:18:50,484 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:18:50,484 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 14:18:50,942 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:50,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:50,954 INFO L85 PathProgramCache]: Analyzing trace with hash -955631045, now seen corresponding path program 1 times [2021-11-23 14:18:50,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:50,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015916090] [2021-11-23 14:18:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:50,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:51,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:51,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015916090] [2021-11-23 14:18:51,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015916090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:51,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:51,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:18:51,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008279100] [2021-11-23 14:18:51,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:51,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:18:51,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:51,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:18:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:18:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:51,338 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:51,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.5) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:51,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:51,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:51,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:18:51,441 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash -512146502, now seen corresponding path program 1 times [2021-11-23 14:18:51,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:51,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018404712] [2021-11-23 14:18:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:51,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:51,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:51,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018404712] [2021-11-23 14:18:51,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018404712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:51,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:51,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 14:18:51,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041534474] [2021-11-23 14:18:51,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:51,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:18:51,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:51,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:18:51,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:18:51,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:51,787 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:51,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:51,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:51,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:52,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:18:52,378 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:52,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:52,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1183143232, now seen corresponding path program 1 times [2021-11-23 14:18:52,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:52,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023387068] [2021-11-23 14:18:52,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:52,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:52,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:52,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023387068] [2021-11-23 14:18:52,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023387068] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:52,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925881751] [2021-11-23 14:18:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:52,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:52,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:52,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:18:52,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 14:18:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:52,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:18:52,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:18:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:53,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:18:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:53,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925881751] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:18:53,960 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:18:53,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2021-11-23 14:18:53,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890650020] [2021-11-23 14:18:53,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:18:53,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 14:18:53,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 14:18:53,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-11-23 14:18:53,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:53,973 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:53,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:53,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:53,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:53,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:54,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:18:54,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:18:54,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-23 14:18:54,739 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:54,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:54,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1345216262, now seen corresponding path program 2 times [2021-11-23 14:18:54,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:54,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968531256] [2021-11-23 14:18:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:54,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:18:54,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:54,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968531256] [2021-11-23 14:18:54,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968531256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:18:54,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:18:54,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:18:54,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739982453] [2021-11-23 14:18:54,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:18:54,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:18:54,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:18:54,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:18:54,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:18:54,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:54,978 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:18:54,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:18:54,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:18:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:18:55,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:18:55,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:18:55,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:18:55,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:18:55,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:18:55,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:18:55,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1829805562, now seen corresponding path program 3 times [2021-11-23 14:18:55,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:18:55,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654659068] [2021-11-23 14:18:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:18:55,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:18:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:18:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:18:59,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:18:59,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654659068] [2021-11-23 14:18:59,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654659068] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:18:59,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717626603] [2021-11-23 14:18:59,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:18:59,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:18:59,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:18:59,267 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:18:59,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:18:59,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-23 14:18:59,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:18:59,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 14:18:59,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:19:00,516 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 14:19:00,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 17 [2021-11-23 14:19:00,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:19:00,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:19:00,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717626603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:19:00,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 14:19:00,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [39] total 47 [2021-11-23 14:19:00,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555042351] [2021-11-23 14:19:00,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:19:00,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 14:19:00,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:19:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 14:19:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2029, Unknown=0, NotChecked=0, Total=2162 [2021-11-23 14:19:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:00,715 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:19:00,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:19:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:19:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:19:00,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:19:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:19:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:19:01,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:19:01,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:19:01,531 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:19:01,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:19:01,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1561562335, now seen corresponding path program 1 times [2021-11-23 14:19:01,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:19:01,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703274652] [2021-11-23 14:19:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:19:01,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:19:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:19:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:19:01,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:19:01,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703274652] [2021-11-23 14:19:01,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703274652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:19:01,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:19:01,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:19:01,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020256549] [2021-11-23 14:19:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:19:01,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:19:01,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:19:01,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:19:01,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:19:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,670 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:19:01,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:19:01,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:01,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:19:01,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:19:01,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:19:01,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:19:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:19:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:19:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:19:01,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:19:01,841 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:19:01,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:19:01,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2058694605, now seen corresponding path program 1 times [2021-11-23 14:19:01,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:19:01,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147190539] [2021-11-23 14:19:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:19:01,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:19:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:19:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:19:01,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:19:01,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147190539] [2021-11-23 14:19:01,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147190539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:19:01,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:19:01,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 14:19:01,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788406645] [2021-11-23 14:19:01,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:19:01,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 14:19:01,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:19:01,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 14:19:01,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 14:19:01,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,981 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:19:01,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:19:01,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:01,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:01,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:19:01,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:19:01,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:19:01,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:19:01,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:19:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:19:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:19:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:19:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:19:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:19:02,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:19:02,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 14:19:02,113 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:19:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:19:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1891632462, now seen corresponding path program 1 times [2021-11-23 14:19:02,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:19:02,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915927225] [2021-11-23 14:19:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:19:02,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:19:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:19:03,527 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:19:03,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:19:03,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915927225] [2021-11-23 14:19:03,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915927225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:19:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899058079] [2021-11-23 14:19:03,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:19:03,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:19:03,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:19:03,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:19:03,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:19:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:19:03,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-23 14:19:03,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:19:04,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 14:19:05,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-23 14:19:05,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-23 14:19:06,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-23 14:19:07,430 INFO L354 Elim1Store]: treesize reduction 93, result has 7.0 percent of original size [2021-11-23 14:19:07,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 34 [2021-11-23 14:19:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:19:08,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:19:54,628 INFO L354 Elim1Store]: treesize reduction 47, result has 53.0 percent of original size [2021-11-23 14:19:54,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3129791 treesize of output 2974195 [2021-11-23 14:24:05,832 WARN L227 SmtUtils]: Spent 4.19m on a formula simplification. DAG size of input: 1750 DAG size of output: 1742 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 14:24:05,879 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2021-11-23 14:24:05,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:24:06,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:24:06,107 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 14:24:06,114 INFO L158 Benchmark]: Toolchain (without parser) took 317060.15ms. Allocated memory was 81.8MB in the beginning and 318.8MB in the end (delta: 237.0MB). Free memory was 42.4MB in the beginning and 102.9MB in the end (delta: -60.5MB). Peak memory consumption was 194.1MB. Max. memory is 16.1GB. [2021-11-23 14:24:06,114 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:24:06,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.58ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 42.2MB in the beginning and 76.6MB in the end (delta: -34.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-23 14:24:06,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.92ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 74.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:24:06,116 INFO L158 Benchmark]: Boogie Preprocessor took 36.75ms. Allocated memory is still 102.8MB. Free memory was 74.5MB in the beginning and 73.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:24:06,117 INFO L158 Benchmark]: RCFGBuilder took 728.10ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 51.8MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 14:24:06,117 INFO L158 Benchmark]: TraceAbstraction took 315846.35ms. Allocated memory was 102.8MB in the beginning and 318.8MB in the end (delta: 216.0MB). Free memory was 51.5MB in the beginning and 102.9MB in the end (delta: -51.5MB). Peak memory consumption was 183.7MB. Max. memory is 16.1GB. [2021-11-23 14:24:06,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 44.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.58ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 42.2MB in the beginning and 76.6MB in the end (delta: -34.5MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.92ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 74.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.75ms. Allocated memory is still 102.8MB. Free memory was 74.5MB in the beginning and 73.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 728.10ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 51.8MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 315846.35ms. Allocated memory was 102.8MB in the beginning and 318.8MB in the end (delta: 216.0MB). Free memory was 51.5MB in the beginning and 102.9MB in the end (delta: -51.5MB). Peak memory consumption was 183.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 14:24:06,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:24:06,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:24:09,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:24:09,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:24:09,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:24:09,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:24:09,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:24:09,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:24:09,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:24:09,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:24:09,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:24:09,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:24:09,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:24:09,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:24:09,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:24:09,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:24:09,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:24:09,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:24:09,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:24:09,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:24:09,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:24:09,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:24:09,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:24:09,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:24:09,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:24:09,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:24:09,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:24:09,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:24:09,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:24:09,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:24:09,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:24:09,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:24:09,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:24:09,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:24:09,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:24:09,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:24:09,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:24:09,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:24:09,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:24:09,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:24:09,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:24:09,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:24:09,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2021-11-23 14:24:09,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:24:09,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:24:09,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:24:09,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:24:09,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:24:09,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:24:09,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:24:09,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:24:09,449 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:24:09,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:24:09,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:24:09,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:24:09,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:24:09,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:24:09,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:24:09,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:24:09,453 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 14:24:09,453 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 14:24:09,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:24:09,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:24:09,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:24:09,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:24:09,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:24:09,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:24:09,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:24:09,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:24:09,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:24:09,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:24:09,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:24:09,457 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 14:24:09,458 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:24:09,458 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 14:24:09,459 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:24:09,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:24:09,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:24:09,459 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:24:09,460 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:24:09,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 14:24:09,461 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa [2021-11-23 14:24:09,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:24:10,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:24:10,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:24:10,015 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:24:10,016 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:24:10,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2021-11-23 14:24:10,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/4af4d5d6b/a871af65ac3742569c1d3fd47cc70085/FLAG9d8d1468e [2021-11-23 14:24:10,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:24:10,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2021-11-23 14:24:10,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/4af4d5d6b/a871af65ac3742569c1d3fd47cc70085/FLAG9d8d1468e [2021-11-23 14:24:11,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/data/4af4d5d6b/a871af65ac3742569c1d3fd47cc70085 [2021-11-23 14:24:11,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:24:11,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:24:11,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:24:11,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:24:11,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:24:11,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a97fa6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11, skipping insertion in model container [2021-11-23 14:24:11,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:24:11,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:24:11,365 WARN L230 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_ab54ac75-eed3-42aa-bbcd-7d29a570018f/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2021-11-23 14:24:11,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:24:11,420 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:24:11,506 WARN L230 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_ab54ac75-eed3-42aa-bbcd-7d29a570018f/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2021-11-23 14:24:11,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:24:11,534 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:24:11,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11 WrapperNode [2021-11-23 14:24:11,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:24:11,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:24:11,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:24:11,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:24:11,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,596 INFO L137 Inliner]: procedures = 28, calls = 50, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 176 [2021-11-23 14:24:11,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:24:11,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:24:11,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:24:11,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:24:11,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:24:11,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:24:11,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:24:11,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:24:11,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (1/1) ... [2021-11-23 14:24:11,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:24:11,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:24:11,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:24:11,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:24:11,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:24:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 14:24:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:24:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 14:24:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 14:24:11,759 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 14:24:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 14:24:11,759 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 14:24:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 14:24:11,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 14:24:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 14:24:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 14:24:11,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:24:11,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:24:11,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:24:11,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:24:11,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 14:24:11,764 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:24:11,924 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:24:11,926 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:24:12,431 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:24:12,569 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:24:12,569 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 14:24:12,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:12 BoogieIcfgContainer [2021-11-23 14:24:12,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:24:12,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:24:12,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:24:12,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:24:12,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:24:11" (1/3) ... [2021-11-23 14:24:12,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6c1818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:24:12, skipping insertion in model container [2021-11-23 14:24:12,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:11" (2/3) ... [2021-11-23 14:24:12,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6c1818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:24:12, skipping insertion in model container [2021-11-23 14:24:12,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:12" (3/3) ... [2021-11-23 14:24:12,599 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2021-11-23 14:24:12,606 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:24:12,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:24:12,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:24:12,608 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:24:12,679 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,680 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,681 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,682 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,683 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,684 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,685 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,686 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,687 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,688 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,689 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,690 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,691 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,692 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,693 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,694 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,695 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,695 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,696 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,697 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,698 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,698 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,698 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,699 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,699 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,699 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,700 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,702 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,707 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,708 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,708 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,708 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,709 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,709 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,710 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,711 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,712 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,713 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,715 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,719 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,720 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,720 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,721 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,723 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,724 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,725 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,746 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,747 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,748 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,768 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~x~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,772 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,772 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,773 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,774 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,775 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,775 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:24:12,784 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-23 14:24:12,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:24:12,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:24:12,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:24:12,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:24:12,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-23 14:24:12,951 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:24:12,951 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 14:24:13,491 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:24:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:24:13,498 INFO L85 PathProgramCache]: Analyzing trace with hash 736554170, now seen corresponding path program 1 times [2021-11-23 14:24:13,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:24:13,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653590253] [2021-11-23 14:24:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:24:13,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:24:13,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:24:13,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:24:13,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 14:24:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:24:13,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 14:24:13,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:24:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:24:14,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:24:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:24:14,258 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:24:14,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653590253] [2021-11-23 14:24:14,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653590253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:24:14,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:24:14,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 14:24:14,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919292746] [2021-11-23 14:24:14,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:24:14,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:24:14,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:24:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:24:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:24:14,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:14,319 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:24:14,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.5) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:24:14,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:14,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:14,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 14:24:14,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:24:14,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:24:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:24:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash -539303892, now seen corresponding path program 1 times [2021-11-23 14:24:14,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:24:14,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645675017] [2021-11-23 14:24:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:24:14,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:24:14,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:24:14,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:24:14,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 14:24:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:24:14,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 14:24:14,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:24:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:24:16,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:24:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:24:18,767 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:24:18,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645675017] [2021-11-23 14:24:18,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645675017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:24:18,768 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:24:18,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 11] imperfect sequences [] total 22 [2021-11-23 14:24:18,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74674598] [2021-11-23 14:24:18,770 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:24:18,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 14:24:18,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:24:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 14:24:18,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=283, Unknown=0, NotChecked=0, Total=462 [2021-11-23 14:24:18,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:18,780 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:24:18,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.318181818181818) internal successors, (161), 22 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:24:18,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:18,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:24:20,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:24:20,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:24:20,712 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:24:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:24:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash -889418990, now seen corresponding path program 1 times [2021-11-23 14:24:20,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:24:20,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602666418] [2021-11-23 14:24:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:24:20,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:24:20,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:24:20,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:24:20,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 14:24:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:24:20,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 14:24:20,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:24:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:24:22,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:24:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:24:25,626 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:24:25,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602666418] [2021-11-23 14:24:25,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602666418] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:24:25,638 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:24:25,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 26 [2021-11-23 14:24:25,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78108490] [2021-11-23 14:24:25,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:24:25,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 14:24:25,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:24:25,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 14:24:25,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2021-11-23 14:24:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:25,642 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:24:25,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.0) internal successors, (182), 26 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:24:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:25,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:24:25,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:24:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:24:28,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:24:28,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:24:28,266 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:24:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:24:28,267 INFO L85 PathProgramCache]: Analyzing trace with hash 975004024, now seen corresponding path program 2 times [2021-11-23 14:24:28,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:24:28,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990879087] [2021-11-23 14:24:28,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:24:28,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:24:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:24:28,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:24:28,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 14:24:28,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 14:24:28,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:24:28,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 14:24:28,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:24:31,053 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 14:24:31,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 29 [2021-11-23 14:24:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:24:31,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:24:34,614 INFO L354 Elim1Store]: treesize reduction 94, result has 8.7 percent of original size [2021-11-23 14:24:34,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 20 [2021-11-23 14:24:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:24:35,963 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:24:35,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990879087] [2021-11-23 14:24:35,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990879087] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:24:35,964 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:24:35,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26, 12] imperfect sequences [] total 34 [2021-11-23 14:24:35,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351194898] [2021-11-23 14:24:35,964 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:24:35,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 14:24:35,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:24:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 14:24:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=972, Unknown=1, NotChecked=0, Total=1122 [2021-11-23 14:24:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:35,970 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:24:35,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:24:35,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:35,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:24:35,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:24:35,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:24:59,349 WARN L227 SmtUtils]: Spent 20.23s on a formula simplification. DAG size of input: 43 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:25:02,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:25:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-23 14:25:02,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:25:02,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:25:02,541 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:25:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:25:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash 20847605, now seen corresponding path program 1 times [2021-11-23 14:25:02,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:25:02,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741588716] [2021-11-23 14:25:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:25:02,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:25:02,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:25:02,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:25:02,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 14:25:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:25:02,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:25:02,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:25:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:25:03,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:25:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:25:03,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:25:03,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741588716] [2021-11-23 14:25:03,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741588716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:25:03,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:25:03,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-23 14:25:03,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408934769] [2021-11-23 14:25:03,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:25:03,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:25:03,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:25:03,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:25:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:25:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:03,278 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:25:03,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:25:03,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:03,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:03,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:03,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-23 14:25:03,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:05,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:25:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:25:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:06,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 14:25:06,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:25:06,727 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:25:06,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:25:06,728 INFO L85 PathProgramCache]: Analyzing trace with hash -474580816, now seen corresponding path program 3 times [2021-11-23 14:25:06,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:25:06,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907970315] [2021-11-23 14:25:06,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:25:06,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:25:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:25:06,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:25:06,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 14:25:06,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-23 14:25:06,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:25:06,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 14:25:06,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:25:08,848 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 14:25:08,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 29 [2021-11-23 14:25:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:25:09,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:25:11,821 INFO L354 Elim1Store]: treesize reduction 47, result has 7.8 percent of original size [2021-11-23 14:25:11,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 14:25:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:25:12,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:25:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907970315] [2021-11-23 14:25:12,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907970315] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:25:12,922 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:25:12,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26, 12] imperfect sequences [] total 34 [2021-11-23 14:25:12,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019625355] [2021-11-23 14:25:12,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:25:12,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 14:25:12,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:25:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 14:25:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=972, Unknown=1, NotChecked=0, Total=1122 [2021-11-23 14:25:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:12,926 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:25:12,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:25:12,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:12,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:12,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:12,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:25:12,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:12,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:18,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:25:20,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:25:40,721 WARN L227 SmtUtils]: Spent 20.19s on a formula simplification. DAG size of input: 43 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:25:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:25:41,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:25:41,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:25:41,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:25:41,594 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:25:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:25:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash -643097821, now seen corresponding path program 1 times [2021-11-23 14:25:41,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:25:41,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728556755] [2021-11-23 14:25:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:25:41,596 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:25:41,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:25:41,597 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:25:41,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 14:25:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:25:41,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 14:25:41,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:25:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:25:41,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:25:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:25:42,171 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:25:42,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728556755] [2021-11-23 14:25:42,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728556755] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 14:25:42,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:25:42,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-23 14:25:42,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892809977] [2021-11-23 14:25:42,176 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 14:25:42,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:25:42,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:25:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:25:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:25:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:42,181 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:25:42,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:25:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:42,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:25:42,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:42,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:25:42,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:44,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:25:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:25:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:25:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:44,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 14:25:44,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:25:44,720 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:25:44,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:25:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1040576460, now seen corresponding path program 1 times [2021-11-23 14:25:44,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:25:44,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45618175] [2021-11-23 14:25:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:25:44,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:25:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:25:44,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:25:44,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 14:25:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:25:44,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-23 14:25:44,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:25:48,304 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-23 14:25:48,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 23 [2021-11-23 14:25:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:25:48,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:25:49,492 INFO L354 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2021-11-23 14:25:49,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 64 [2021-11-23 14:25:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 14:25:55,415 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:25:55,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45618175] [2021-11-23 14:25:55,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45618175] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:25:55,416 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:25:55,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 25] total 55 [2021-11-23 14:25:55,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413811712] [2021-11-23 14:25:55,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:25:55,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-23 14:25:55,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:25:55,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-23 14:25:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=2364, Unknown=0, NotChecked=0, Total=2970 [2021-11-23 14:25:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:55,421 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:25:55,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.236363636363636) internal successors, (233), 55 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:25:55,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:25:55,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:25:55,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:25:55,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:25:55,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:55,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:25:55,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:25:55,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:07,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:26:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:26:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-23 14:26:08,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-23 14:26:08,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:26:08,462 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:26:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:26:08,462 INFO L85 PathProgramCache]: Analyzing trace with hash 232088097, now seen corresponding path program 2 times [2021-11-23 14:26:08,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:26:08,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512448197] [2021-11-23 14:26:08,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:26:08,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:26:08,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:26:08,465 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:26:08,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 14:26:08,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:26:08,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:26:08,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 14:26:08,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:26:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:26:09,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:26:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:26:10,004 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:26:10,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512448197] [2021-11-23 14:26:10,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512448197] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:26:10,005 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:26:10,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-23 14:26:10,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124580611] [2021-11-23 14:26:10,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:26:10,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 14:26:10,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:26:10,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 14:26:10,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-11-23 14:26:10,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:10,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:26:10,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.38888888888889) internal successors, (169), 18 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:26:10,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:10,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:10,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:10,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:10,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:10,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:26:10,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:10,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-11-23 14:26:10,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:13,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:26:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-23 14:26:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:26:13,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 14:26:13,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:26:13,662 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:26:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:26:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash -431857329, now seen corresponding path program 3 times [2021-11-23 14:26:13,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:26:13,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458467890] [2021-11-23 14:26:13,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:26:13,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:26:13,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:26:13,665 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:26:13,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 14:26:13,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 14:26:13,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:26:13,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 14:26:13,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:26:14,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:26:14,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:26:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:26:15,647 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:26:15,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458467890] [2021-11-23 14:26:15,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458467890] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:26:15,648 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:26:15,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-11-23 14:26:15,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507692803] [2021-11-23 14:26:15,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:26:15,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 14:26:15,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:26:15,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 14:26:15,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-11-23 14:26:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:15,651 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:26:15,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 22 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:26:15,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:15,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:15,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:15,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:26:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-23 14:26:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:26:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:26:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:26:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:22,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:26:22,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 14:26:22,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:26:22,578 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:26:22,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:26:22,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1856262152, now seen corresponding path program 4 times [2021-11-23 14:26:22,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:26:22,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352933948] [2021-11-23 14:26:22,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 14:26:22,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:26:22,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:26:22,581 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:26:22,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 14:26:22,720 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 14:26:22,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:26:22,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 14:26:22,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:26:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:26:23,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:26:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:26:25,740 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:26:25,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352933948] [2021-11-23 14:26:25,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352933948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:26:25,741 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:26:25,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2021-11-23 14:26:25,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95679442] [2021-11-23 14:26:25,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:26:25,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 14:26:25,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:26:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 14:26:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2021-11-23 14:26:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:25,744 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:26:25,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.111111111111111) internal successors, (192), 27 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:26:25,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:25,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:25,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:25,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:25,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:25,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:26:25,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:25,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:26:25,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:25,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:26:25,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:26:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:26:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-23 14:26:32,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-23 14:26:32,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:26:32,556 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:26:32,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:26:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2107745927, now seen corresponding path program 5 times [2021-11-23 14:26:32,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:26:32,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396173249] [2021-11-23 14:26:32,557 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 14:26:32,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:26:32,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:26:32,558 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:26:32,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 14:26:32,689 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-23 14:26:32,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:26:32,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 14:26:32,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:26:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:26:33,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:26:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:26:37,261 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:26:37,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396173249] [2021-11-23 14:26:37,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396173249] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:26:37,261 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:26:37,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2021-11-23 14:26:37,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052745070] [2021-11-23 14:26:37,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:26:37,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-23 14:26:37,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:26:37,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-23 14:26:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1209, Unknown=0, NotChecked=0, Total=1406 [2021-11-23 14:26:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:37,265 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:26:37,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.5) internal successors, (209), 38 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:26:37,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:26:37,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:26:37,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:26:37,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:26:37,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-11-23 14:26:37,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:27:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:27:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:27:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:27:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:27:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:27:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:27:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:27:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:27:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:27:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:27:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:27:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-23 14:27:03,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 14:27:04,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:27:04,123 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:27:04,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:27:04,124 INFO L85 PathProgramCache]: Analyzing trace with hash 617034751, now seen corresponding path program 6 times [2021-11-23 14:27:04,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:27:04,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522843912] [2021-11-23 14:27:04,124 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 14:27:04,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:27:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:27:04,125 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:27:04,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 14:27:04,450 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-23 14:27:04,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:27:04,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 14:27:04,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:27:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 130 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:27:05,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:27:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:27:19,510 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:27:19,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522843912] [2021-11-23 14:27:19,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522843912] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:27:19,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:27:19,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 33] total 63 [2021-11-23 14:27:19,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256631069] [2021-11-23 14:27:19,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:27:19,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-23 14:27:19,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:27:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-23 14:27:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=3417, Unknown=0, NotChecked=0, Total=3906 [2021-11-23 14:27:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:27:19,515 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:27:19,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.984126984126984) internal successors, (251), 63 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) [2021-11-23 14:27:19,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:27:19,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:27:19,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:27:19,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:27:19,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-11-23 14:27:19,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:28:05,931 WARN L227 SmtUtils]: Spent 14.36s on a formula simplification. DAG size of input: 81 DAG size of output: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:28:39,280 WARN L227 SmtUtils]: Spent 26.72s on a formula simplification. DAG size of input: 87 DAG size of output: 82 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:28:55,577 WARN L227 SmtUtils]: Spent 14.32s on a formula simplification. DAG size of input: 77 DAG size of output: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:29:06,648 WARN L227 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 68 DAG size of output: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:29:17,527 WARN L227 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 73 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:29:28,088 WARN L227 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:29:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:29:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:29:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-11-23 14:29:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-23 14:29:32,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 14:29:32,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:29:32,552 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:29:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:29:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1230952632, now seen corresponding path program 7 times [2021-11-23 14:29:32,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:29:32,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356704887] [2021-11-23 14:29:32,553 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 14:29:32,553 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:29:32,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:29:32,554 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:29:32,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 14:29:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:29:32,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 14:29:32,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:29:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 42 proven. 186 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:29:34,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:29:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 42 proven. 186 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 14:29:53,772 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:29:53,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356704887] [2021-11-23 14:29:53,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356704887] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:29:53,773 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:29:53,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 34] total 67 [2021-11-23 14:29:53,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560153166] [2021-11-23 14:29:53,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:29:53,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-23 14:29:53,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:29:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-23 14:29:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=537, Invalid=3885, Unknown=0, NotChecked=0, Total=4422 [2021-11-23 14:29:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:29:53,777 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:29:53,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 4.059701492537314) internal successors, (272), 67 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:29:53,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:29:53,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:29:53,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:29:53,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:29:53,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:29:53,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:29:53,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:29:53,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:29:53,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:29:53,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:29:53,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:29:53,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-11-23 14:29:53,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-23 14:29:53,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:30:46,148 WARN L227 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 75 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:31:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:31:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:31:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:31:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-23 14:31:20,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:31:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-11-23 14:31:20,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-23 14:31:20,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 [2021-11-23 14:31:20,335 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-23 14:31:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:31:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2037314601, now seen corresponding path program 8 times [2021-11-23 14:31:20,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 14:31:20,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183432273] [2021-11-23 14:31:20,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:31:20,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 14:31:20,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat [2021-11-23 14:31:20,338 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 14:31:20,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab54ac75-eed3-42aa-bbcd-7d29a570018f/bin/ugemcutter-aZbSL5k0Dw/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 14:31:20,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:31:20,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:31:20,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-23 14:31:20,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:31:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 36 proven. 224 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:31:22,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:31:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 36 proven. 224 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 14:31:37,794 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 14:31:37,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183432273] [2021-11-23 14:31:37,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183432273] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:31:37,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 14:31:37,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 72 [2021-11-23 14:31:37,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521342837] [2021-11-23 14:31:37,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 14:31:37,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-11-23 14:31:37,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 14:31:37,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-11-23 14:31:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=4561, Unknown=0, NotChecked=0, Total=5112 [2021-11-23 14:31:37,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:31:37,799 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:31:37,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 4.013888888888889) internal successors, (289), 72 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:31:37,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:31:37,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:31:37,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:31:37,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:31:37,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-23 14:31:37,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:31:37,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2021-11-23 14:31:37,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.