./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 06:47:14,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 06:47:14,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 06:47:14,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 06:47:14,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 06:47:14,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 06:47:14,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 06:47:14,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 06:47:14,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 06:47:14,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 06:47:14,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 06:47:14,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 06:47:14,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 06:47:14,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 06:47:14,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 06:47:14,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 06:47:14,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 06:47:14,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 06:47:14,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 06:47:14,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 06:47:14,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 06:47:14,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 06:47:14,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 06:47:14,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 06:47:14,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 06:47:14,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 06:47:14,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 06:47:14,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 06:47:14,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 06:47:14,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 06:47:14,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 06:47:14,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 06:47:14,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 06:47:14,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 06:47:14,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 06:47:14,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 06:47:14,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 06:47:14,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 06:47:14,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 06:47:14,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 06:47:14,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 06:47:14,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-23 06:47:14,652 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 06:47:14,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 06:47:14,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 06:47:14,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 06:47:14,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 06:47:14,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 06:47:14,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 06:47:14,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 06:47:14,659 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 06:47:14,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 06:47:14,660 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 06:47:14,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 06:47:14,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 06:47:14,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 06:47:14,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 06:47:14,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 06:47:14,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 06:47:14,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 06:47:14,662 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 06:47:14,662 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 06:47:14,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 06:47:14,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 06:47:14,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 06:47:14,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 06:47:14,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 06:47:14,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 06:47:14,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:47:14,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 06:47:14,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 06:47:14,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 06:47:14,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 06:47:14,666 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-23 06:47:14,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 06:47:14,667 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-23 06:47:14,667 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-23 06:47:14,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-23 06:47:14,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 06:47:14,668 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-23 06:47:14,668 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-23 06:47:14,668 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_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2022-11-23 06:47:14,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 06:47:15,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 06:47:15,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 06:47:15,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 06:47:15,028 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 06:47:15,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2022-11-23 06:47:18,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 06:47:18,260 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 06:47:18,260 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2022-11-23 06:47:18,270 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/data/e1c338523/5d2cc762729c402ea66da03c87ed0810/FLAGf68879473 [2022-11-23 06:47:18,287 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/data/e1c338523/5d2cc762729c402ea66da03c87ed0810 [2022-11-23 06:47:18,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 06:47:18,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 06:47:18,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 06:47:18,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 06:47:18,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 06:47:18,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4d6328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18, skipping insertion in model container [2022-11-23 06:47:18,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 06:47:18,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 06:47:18,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2022-11-23 06:47:18,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:47:18,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 06:47:18,712 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2022-11-23 06:47:18,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 06:47:18,746 INFO L208 MainTranslator]: Completed translation [2022-11-23 06:47:18,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18 WrapperNode [2022-11-23 06:47:18,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 06:47:18,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 06:47:18,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 06:47:18,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 06:47:18,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,822 INFO L138 Inliner]: procedures = 27, calls = 73, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 297 [2022-11-23 06:47:18,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 06:47:18,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 06:47:18,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 06:47:18,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 06:47:18,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 06:47:18,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 06:47:18,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 06:47:18,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 06:47:18,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (1/1) ... [2022-11-23 06:47:18,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 06:47:18,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:47:18,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 06:47:18,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 06:47:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 06:47:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 06:47:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 06:47:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 06:47:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 06:47:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 06:47:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 06:47:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 06:47:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 06:47:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 06:47:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-23 06:47:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-23 06:47:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 06:47:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 06:47:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 06:47:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 06:47:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 06:47:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 06:47:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 06:47:18,957 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 06:47:19,101 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 06:47:19,117 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 06:47:19,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 06:47:20,306 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 06:47:20,306 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 06:47:20,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:47:20 BoogieIcfgContainer [2022-11-23 06:47:20,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 06:47:20,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 06:47:20,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 06:47:20,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 06:47:20,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:47:18" (1/3) ... [2022-11-23 06:47:20,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edf96cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:47:20, skipping insertion in model container [2022-11-23 06:47:20,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:47:18" (2/3) ... [2022-11-23 06:47:20,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edf96cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:47:20, skipping insertion in model container [2022-11-23 06:47:20,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:47:20" (3/3) ... [2022-11-23 06:47:20,319 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2022-11-23 06:47:20,329 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 06:47:20,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 06:47:20,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-23 06:47:20,341 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 06:47:20,501 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-11-23 06:47:20,547 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:47:20,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-23 06:47:20,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:47:20,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-23 06:47:20,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-23 06:47:20,626 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-23 06:47:20,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2022-11-23 06:47:20,654 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a1dc26e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 06:47:20,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 06:47:21,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:21,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash 333606382, now seen corresponding path program 1 times [2022-11-23 06:47:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:21,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323937241] [2022-11-23 06:47:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:22,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:22,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323937241] [2022-11-23 06:47:22,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323937241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:47:22,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:47:22,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:47:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673227118] [2022-11-23 06:47:22,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:47:22,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 06:47:22,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:47:22,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 06:47:22,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 06:47:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:47:22,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:47:22,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 06:47:22,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash 870735814, now seen corresponding path program 1 times [2022-11-23 06:47:22,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:22,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820834047] [2022-11-23 06:47:22,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:22,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:22,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:22,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820834047] [2022-11-23 06:47:22,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820834047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:47:22,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:47:22,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 06:47:22,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248199878] [2022-11-23 06:47:22,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:47:22,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 06:47:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:47:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 06:47:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 06:47:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,412 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:47:22,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 60.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:47:22,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:22,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 06:47:22,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:22,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:22,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1223007592, now seen corresponding path program 1 times [2022-11-23 06:47:22,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:22,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139788041] [2022-11-23 06:47:22,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:22,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:23,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:23,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139788041] [2022-11-23 06:47:23,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139788041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:47:23,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 06:47:23,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 06:47:23,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755749350] [2022-11-23 06:47:23,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:47:23,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 06:47:23,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:47:23,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 06:47:23,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 06:47:23,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:23,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:47:23,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 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) [2022-11-23 06:47:23,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:23,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:23,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:24,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:24,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:24,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 06:47:24,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:24,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:24,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1848562491, now seen corresponding path program 1 times [2022-11-23 06:47:24,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:24,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736982051] [2022-11-23 06:47:24,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:24,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:24,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736982051] [2022-11-23 06:47:24,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736982051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:47:24,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529117363] [2022-11-23 06:47:24,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:24,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:47:24,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:47:24,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:47:24,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 06:47:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:25,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 06:47:25,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:47:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:25,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:47:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:25,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529117363] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:47:25,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 06:47:25,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-23 06:47:25,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342036130] [2022-11-23 06:47:25,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 06:47:25,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-23 06:47:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:47:25,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-23 06:47:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-23 06:47:25,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:25,608 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:47:25,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.368421052631579) internal successors, (235), 19 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:47:25,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:25,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:25,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:25,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:47:27,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 06:47:27,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:47:27,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:27,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1208386872, now seen corresponding path program 2 times [2022-11-23 06:47:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:27,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940445804] [2022-11-23 06:47:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:27,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:27,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:27,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940445804] [2022-11-23 06:47:27,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940445804] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:47:27,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570054965] [2022-11-23 06:47:27,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 06:47:27,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:47:27,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:47:27,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:47:27,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 06:47:27,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 06:47:27,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 06:47:27,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 06:47:27,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:47:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 06:47:27,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 06:47:27,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570054965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 06:47:27,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 06:47:27,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-23 06:47:27,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343791390] [2022-11-23 06:47:27,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 06:47:27,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 06:47:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:47:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 06:47:27,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-23 06:47:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:27,894 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:47:27,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:47:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:47:27,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:47:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:47:28,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 06:47:28,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:47:28,958 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1868263134, now seen corresponding path program 1 times [2022-11-23 06:47:28,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:28,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357016025] [2022-11-23 06:47:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:31,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:31,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357016025] [2022-11-23 06:47:31,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357016025] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:47:31,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120769605] [2022-11-23 06:47:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:31,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:47:31,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:47:31,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:47:31,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 06:47:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:31,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-23 06:47:31,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:47:31,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 06:47:31,947 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-23 06:47:31,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2022-11-23 06:47:32,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 06:47:32,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:47:32,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-23 06:47:33,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:47:33,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-23 06:47:33,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-23 06:47:33,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:47:33,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-23 06:47:33,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-23 06:47:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:33,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:47:33,533 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_189 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork2_~#t3~0.base| v_ArrVal_189) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 9223372039002259456))) is different from false [2022-11-23 06:47:34,011 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork2_~#t3~0.base_15| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork2_~#t3~0.base_15|)) (forall ((v_ArrVal_188 (Array Int Int)) (v_ArrVal_187 (Array Int Int)) (v_ArrVal_189 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork2_~#t2~0.base| v_ArrVal_187) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_188) |v_thread1Thread1of1ForFork2_~#t3~0.base_15| v_ArrVal_189) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 9223372039002259456))))) is different from false [2022-11-23 06:47:36,060 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork2_~#t2~0.base_15| Int)) (or (forall ((|v_thread1Thread1of1ForFork2_~#t3~0.base_15| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork2_~#t3~0.base_15|)) (forall ((v_ArrVal_188 (Array Int Int)) (v_ArrVal_187 (Array Int Int)) (v_ArrVal_189 (Array Int Int))) (< 0 (+ (select (select (store (store (store |c_#memory_int| |v_thread1Thread1of1ForFork2_~#t2~0.base_15| v_ArrVal_187) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_188) |v_thread1Thread1of1ForFork2_~#t3~0.base_15| v_ArrVal_189) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 9223372039002259456))))) (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork2_~#t2~0.base_15|)))) is different from false [2022-11-23 06:47:37,344 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 06:47:37,345 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2022-11-23 06:47:37,364 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 06:47:37,365 INFO L350 Elim1Store]: Elim1 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 1226 treesize of output 1204 [2022-11-23 06:47:37,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 595 treesize of output 531 [2022-11-23 06:47:37,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1126 treesize of output 1094 [2022-11-23 06:47:37,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1094 treesize of output 966 [2022-11-23 06:47:37,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 966 treesize of output 950 [2022-11-23 06:47:42,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-23 06:47:42,357 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:42,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120769605] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 06:47:42,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 06:47:42,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 60 [2022-11-23 06:47:42,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079620929] [2022-11-23 06:47:42,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 06:47:42,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-11-23 06:47:42,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 06:47:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-11-23 06:47:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=2997, Unknown=76, NotChecked=342, Total=3660 [2022-11-23 06:47:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:42,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-23 06:47:42,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 6.066666666666666) internal successors, (364), 61 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 06:47:42,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:42,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:42,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:42,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:47:42,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:47:42,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 06:47:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 06:47:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 06:47:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 06:47:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 06:47:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 06:47:49,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 06:47:49,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 06:47:49,769 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 06:47:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 06:47:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1868263133, now seen corresponding path program 1 times [2022-11-23 06:47:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 06:47:49,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242341939] [2022-11-23 06:47:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 06:47:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:51,773 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:51,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 06:47:51,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242341939] [2022-11-23 06:47:51,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242341939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 06:47:51,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975669459] [2022-11-23 06:47:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 06:47:51,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 06:47:51,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 [2022-11-23 06:47:51,775 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 06:47:51,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e97ce07-6c4b-4571-bdc7-b40d79dc16e8/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 06:47:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 06:47:51,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-23 06:47:51,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 06:47:51,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-23 06:47:52,023 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 06:47:52,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-23 06:47:52,438 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-23 06:47:52,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 treesize of output 15 [2022-11-23 06:47:52,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 06:47:53,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-23 06:47:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:47:53,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-23 06:47:53,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:47:53,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-23 06:47:53,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 06:47:53,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-23 06:47:54,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-23 06:47:54,014 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 06:47:54,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 06:47:54,236 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_241 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork2_~#t3~0.base| v_ArrVal_241) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 4294967296)) is different from false [2022-11-23 06:47:54,421 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_239 (Array Int Int)) (v_ArrVal_241 (Array Int Int)) (v_ArrVal_240 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork2_~#t2~0.base| v_ArrVal_239) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_240) |c_thread1Thread1of1ForFork2_~#t3~0.base| v_ArrVal_241) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) 4294967296)) is different from false [2022-11-23 06:47:54,577 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork2_~#t3~0.base_17| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork2_~#t3~0.base_17|)) (forall ((v_ArrVal_239 (Array Int Int)) (v_ArrVal_241 (Array Int Int)) (v_ArrVal_240 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |c_thread1Thread1of1ForFork2_~#t2~0.base| v_ArrVal_239) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_240) |v_thread1Thread1of1ForFork2_~#t3~0.base_17| v_ArrVal_241) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 4294967296)))) is different from false [2022-11-23 06:47:56,606 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork2_~#t2~0.base_17| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork2_~#t2~0.base_17|)) (forall ((|v_thread1Thread1of1ForFork2_~#t3~0.base_17| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork2_~#t3~0.base_17|)) (forall ((v_ArrVal_239 (Array Int Int)) (v_ArrVal_241 (Array Int Int)) (v_ArrVal_240 (Array Int Int))) (< (select (select (store (store (store |c_#memory_int| |v_thread1Thread1of1ForFork2_~#t2~0.base_17| v_ArrVal_239) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_240) |v_thread1Thread1of1ForFork2_~#t3~0.base_17| v_ArrVal_241) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) 4294967296)))))) is different from false [2022-11-23 06:48:01,604 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 06:48:01,605 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-11-23 06:48:01,629 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 06:48:01,630 INFO L350 Elim1Store]: Elim1 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 35074 treesize of output 34308 [2022-11-23 06:48:01,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34294 treesize of output 33782 [2022-11-23 06:48:02,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33782 treesize of output 32758 [2022-11-23 06:48:02,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32758 treesize of output 28662 [2022-11-23 06:48:02,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28662 treesize of output 26614