./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix046.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b09c85b7 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_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix046.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U --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 0c2da3652c054af11b47a99e37d3ddb516e4f65f65f3696b960347af3ebf57e8 --- 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-b09c85b [2022-11-08 07:42:52,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-08 07:42:52,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-08 07:42:52,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-08 07:42:52,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-08 07:42:52,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-08 07:42:52,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-08 07:42:52,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-08 07:42:52,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-08 07:42:52,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-08 07:42:52,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-08 07:42:52,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-08 07:42:52,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-08 07:42:52,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-08 07:42:52,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-08 07:42:52,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-08 07:42:52,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-08 07:42:52,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-08 07:42:52,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-08 07:42:52,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-08 07:42:52,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-08 07:42:52,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-08 07:42:52,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-08 07:42:52,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-08 07:42:52,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-08 07:42:52,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-08 07:42:52,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-08 07:42:52,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-08 07:42:52,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-08 07:42:52,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-08 07:42:52,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-08 07:42:52,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-08 07:42:52,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-08 07:42:52,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-08 07:42:52,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-08 07:42:52,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-08 07:42:52,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-08 07:42:52,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-08 07:42:52,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-08 07:42:52,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-08 07:42:52,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-08 07:42:52,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-08 07:42:52,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-08 07:42:52,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-08 07:42:52,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-08 07:42:52,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-08 07:42:52,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-08 07:42:52,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-08 07:42:52,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-08 07:42:52,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-08 07:42:52,683 INFO L138 SettingsManager]: * Use SBE=true [2022-11-08 07:42:52,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-08 07:42:52,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-08 07:42:52,684 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-08 07:42:52,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-08 07:42:52,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-08 07:42:52,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-08 07:42:52,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-08 07:42:52,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-08 07:42:52,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-08 07:42:52,685 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-08 07:42:52,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-08 07:42:52,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-08 07:42:52,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-08 07:42:52,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-08 07:42:52,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-08 07:42:52,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-08 07:42:52,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-08 07:42:52,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-08 07:42:52,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:42:52,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-08 07:42:52,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-08 07:42:52,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-08 07:42:52,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-08 07:42:52,688 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-08 07:42:52,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-08 07:42:52,688 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-08 07:42:52,688 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-08 07:42:52,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-08 07:42:52,689 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-08 07:42:52,689 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-08 07:42:52,689 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_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c2da3652c054af11b47a99e37d3ddb516e4f65f65f3696b960347af3ebf57e8 [2022-11-08 07:42:52,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-08 07:42:53,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-08 07:42:53,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-08 07:42:53,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-08 07:42:53,014 INFO L275 PluginConnector]: CDTParser initialized [2022-11-08 07:42:53,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/../../sv-benchmarks/c/pthread-wmm/mix046.oepc.i [2022-11-08 07:42:53,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/data/b8a6255e9/ce5ea2ffe1034e2d92cfad8d5eea9441/FLAGdd19c52c8 [2022-11-08 07:42:53,689 INFO L306 CDTParser]: Found 1 translation units. [2022-11-08 07:42:53,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/sv-benchmarks/c/pthread-wmm/mix046.oepc.i [2022-11-08 07:42:53,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/data/b8a6255e9/ce5ea2ffe1034e2d92cfad8d5eea9441/FLAGdd19c52c8 [2022-11-08 07:42:53,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/data/b8a6255e9/ce5ea2ffe1034e2d92cfad8d5eea9441 [2022-11-08 07:42:53,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-08 07:42:53,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-08 07:42:53,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-08 07:42:53,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-08 07:42:53,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-08 07:42:53,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:42:53" (1/1) ... [2022-11-08 07:42:53,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f39f3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:53, skipping insertion in model container [2022-11-08 07:42:53,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:42:53" (1/1) ... [2022-11-08 07:42:53,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-08 07:42:54,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-08 07:42:54,253 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_7864bc14-390f-4cd7-bba3-49abdfe88509/sv-benchmarks/c/pthread-wmm/mix046.oepc.i[945,958] [2022-11-08 07:42:54,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:42:54,453 INFO L203 MainTranslator]: Completed pre-run [2022-11-08 07:42:54,465 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_7864bc14-390f-4cd7-bba3-49abdfe88509/sv-benchmarks/c/pthread-wmm/mix046.oepc.i[945,958] [2022-11-08 07:42:54,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-08 07:42:54,589 INFO L208 MainTranslator]: Completed translation [2022-11-08 07:42:54,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54 WrapperNode [2022-11-08 07:42:54,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-08 07:42:54,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-08 07:42:54,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-08 07:42:54,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-08 07:42:54,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,692 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2022-11-08 07:42:54,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-08 07:42:54,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-08 07:42:54,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-08 07:42:54,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-08 07:42:54,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-08 07:42:54,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-08 07:42:54,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-08 07:42:54,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-08 07:42:54,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (1/1) ... [2022-11-08 07:42:54,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-08 07:42:54,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:54,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-08 07:42:54,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-08 07:42:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-08 07:42:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-08 07:42:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-08 07:42:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-08 07:42:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-08 07:42:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-08 07:42:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-08 07:42:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-08 07:42:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-08 07:42:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-08 07:42:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-08 07:42:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-08 07:42:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-08 07:42:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-08 07:42:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-08 07:42:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-08 07:42:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-08 07:42:54,870 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-08 07:42:55,067 INFO L235 CfgBuilder]: Building ICFG [2022-11-08 07:42:55,069 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-08 07:42:55,975 INFO L276 CfgBuilder]: Performing block encoding [2022-11-08 07:42:56,603 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-08 07:42:56,603 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-08 07:42:56,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:42:56 BoogieIcfgContainer [2022-11-08 07:42:56,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-08 07:42:56,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-08 07:42:56,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-08 07:42:56,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-08 07:42:56,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:42:53" (1/3) ... [2022-11-08 07:42:56,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3865ce8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:42:56, skipping insertion in model container [2022-11-08 07:42:56,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:42:54" (2/3) ... [2022-11-08 07:42:56,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3865ce8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:42:56, skipping insertion in model container [2022-11-08 07:42:56,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:42:56" (3/3) ... [2022-11-08 07:42:56,617 INFO L112 eAbstractionObserver]: Analyzing ICFG mix046.oepc.i [2022-11-08 07:42:56,627 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-08 07:42:56,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-08 07:42:56,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-08 07:42:56,638 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-08 07:42:56,743 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-08 07:42:56,812 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:42:56,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:42:56,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:42:56,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:42:56,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-08 07:42:56,857 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:42:56,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork1 ======== [2022-11-08 07:42:56,878 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;@1cbf174e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:42:56,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:42:57,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:42:57,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1382596015, now seen corresponding path program 1 times [2022-11-08 07:42:57,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:57,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084284627] [2022-11-08 07:42:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:57,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:57,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:57,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084284627] [2022-11-08 07:42:57,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084284627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:57,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:57,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:42:57,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592810961] [2022-11-08 07:42:57,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:57,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:42:57,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:57,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:42:57,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:42:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:57,860 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:57,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2022-11-08 07:42:57,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:57,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:57,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-08 07:42:57,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:42:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2067541326, now seen corresponding path program 1 times [2022-11-08 07:42:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:57,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280218564] [2022-11-08 07:42:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:58,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:58,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280218564] [2022-11-08 07:42:58,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280218564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:58,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:58,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:42:58,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190385550] [2022-11-08 07:42:58,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:58,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:42:58,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:58,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:42:58,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:42:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:58,197 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:58,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-08 07:42:58,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:58,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:58,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:58,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-08 07:42:58,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:42:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:58,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2067541325, now seen corresponding path program 1 times [2022-11-08 07:42:58,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:58,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801812425] [2022-11-08 07:42:58,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:58,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:58,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:58,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801812425] [2022-11-08 07:42:58,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801812425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:58,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:58,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:42:58,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64848941] [2022-11-08 07:42:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:58,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:42:58,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:58,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:42:58,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:42:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:58,382 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:58,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 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) [2022-11-08 07:42:58,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:58,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:58,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:58,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-08 07:42:58,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:42:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:42:58,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1839996323, now seen corresponding path program 1 times [2022-11-08 07:42:58,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:42:58,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273825629] [2022-11-08 07:42:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:42:58,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:42:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:42:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:42:59,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:42:59,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273825629] [2022-11-08 07:42:59,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273825629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:42:59,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:42:59,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:42:59,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770626860] [2022-11-08 07:42:59,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:42:59,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:42:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:42:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:42:59,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:42:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:42:59,287 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:42:59,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:42:59,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:42:59,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:59,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:42:59,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:43:17,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-08 07:43:17,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-08 07:43:17,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-08 07:43:17,117 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-08 07:43:17,118 INFO L307 ceAbstractionStarter]: Result for error location P2Thread1of1ForFork1 was SAFE,SAFE (1/5) [2022-11-08 07:43:17,123 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:17,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:43:17,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:43:17,126 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:43:17,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-11-08 07:43:17,159 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:43:17,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Thread1of1ForFork3 ======== [2022-11-08 07:43:17,161 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;@1cbf174e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:17,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:43:17,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:17,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:17,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2096344738, now seen corresponding path program 1 times [2022-11-08 07:43:17,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:17,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265073777] [2022-11-08 07:43:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:18,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265073777] [2022-11-08 07:43:18,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265073777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:18,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:18,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:43:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561288613] [2022-11-08 07:43:18,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:18,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:43:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:43:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:43:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-11-08 07:43:18,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:18,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-08 07:43:18,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:18,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:18,085 INFO L85 PathProgramCache]: Analyzing trace with hash 124839201, now seen corresponding path program 1 times [2022-11-08 07:43:18,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:18,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654239279] [2022-11-08 07:43:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:18,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:18,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654239279] [2022-11-08 07:43:18,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654239279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:18,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:18,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:43:18,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032397708] [2022-11-08 07:43:18,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:18,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:43:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:43:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:43:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,209 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:18,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2022-11-08 07:43:18,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:18,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:18,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-08 07:43:18,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:18,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1632391011, now seen corresponding path program 1 times [2022-11-08 07:43:18,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:18,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32937215] [2022-11-08 07:43:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:18,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:18,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:18,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32937215] [2022-11-08 07:43:18,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32937215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:18,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:18,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:43:18,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949724829] [2022-11-08 07:43:18,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:18,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:43:18,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:18,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:43:18,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:43:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,374 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:18,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2022-11-08 07:43:18,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:18,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:18,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:18,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:18,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-08 07:43:18,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1800322940, now seen corresponding path program 1 times [2022-11-08 07:43:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:18,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162214027] [2022-11-08 07:43:18,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:18,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:18,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:18,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162214027] [2022-11-08 07:43:18,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162214027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:18,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:18,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:43:18,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298354665] [2022-11-08 07:43:18,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:18,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-08 07:43:18,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-08 07:43:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-08 07:43:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:18,584 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:18,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 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) [2022-11-08 07:43:18,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:18,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:18,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:18,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-08 07:43:35,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-08 07:43:35,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-08 07:43:35,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-08 07:43:35,106 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-08 07:43:35,107 INFO L307 ceAbstractionStarter]: Result for error location P3Thread1of1ForFork3 was SAFE,SAFE (2/5) [2022-11-08 07:43:35,109 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:35,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:43:35,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:43:35,113 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:43:35,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-11-08 07:43:35,125 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:43:35,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P1Thread1of1ForFork0 ======== [2022-11-08 07:43:35,125 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;@1cbf174e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:35,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:43:35,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:35,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:35,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1496026886, now seen corresponding path program 1 times [2022-11-08 07:43:35,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:35,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101388669] [2022-11-08 07:43:35,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:35,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:35,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101388669] [2022-11-08 07:43:35,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101388669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:35,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:35,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-08 07:43:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684162592] [2022-11-08 07:43:35,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:35,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:43:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:43:35,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:43:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:35,342 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:35,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-11-08 07:43:35,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:35,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:35,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-08 07:43:35,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:35,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:35,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1491279746, now seen corresponding path program 1 times [2022-11-08 07:43:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:35,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988970346] [2022-11-08 07:43:35,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:35,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:35,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:35,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988970346] [2022-11-08 07:43:35,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988970346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:35,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:35,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:43:35,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281603115] [2022-11-08 07:43:35,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:35,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:43:35,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:35,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:43:35,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:43:35,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:35,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:35,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-11-08 07:43:35,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:35,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:35,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:35,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-08 07:43:35,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1352554049, now seen corresponding path program 1 times [2022-11-08 07:43:35,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:35,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459926354] [2022-11-08 07:43:35,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:35,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:36,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:36,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459926354] [2022-11-08 07:43:36,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459926354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:36,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:36,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:43:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763610769] [2022-11-08 07:43:36,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:36,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:43:36,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:36,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:43:36,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:43:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:36,143 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:36,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:43:36,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:36,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:36,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:43:40,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-08 07:43:40,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:40,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:40,441 INFO L85 PathProgramCache]: Analyzing trace with hash 233186497, now seen corresponding path program 1 times [2022-11-08 07:43:40,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:40,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925456030] [2022-11-08 07:43:40,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:40,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:40,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925456030] [2022-11-08 07:43:40,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925456030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:40,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:40,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:43:40,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371479089] [2022-11-08 07:43:40,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:40,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:43:40,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:40,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:43:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:43:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:40,560 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:40,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 4 states have internal predecessors, (86), 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) [2022-11-08 07:43:40,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:43:40,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-08 07:43:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:48,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-08 07:43:48,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-08 07:43:48,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-08 07:43:48,501 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-08 07:43:48,502 INFO L307 ceAbstractionStarter]: Result for error location P1Thread1of1ForFork0 was SAFE,SAFE (3/5) [2022-11-08 07:43:48,504 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:48,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:43:48,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:43:48,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:43:48,521 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:43:48,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-08 07:43:48,522 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;@1cbf174e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:48,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-08 07:43:48,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-11-08 07:43:49,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-08 07:43:49,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-08 07:43:49,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-08 07:43:49,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-08 07:43:49,486 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-11-08 07:43:49,487 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (4/5) [2022-11-08 07:43:49,489 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:49,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-08 07:43:49,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 [2022-11-08 07:43:49,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-08 07:43:49,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7864bc14-390f-4cd7-bba3-49abdfe88509/bin/ugemcutter-QpsTfqS70U/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-11-08 07:43:49,501 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-08 07:43:49,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Thread1of1ForFork2 ======== [2022-11-08 07:43:49,502 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1cbf174e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-08 07:43:49,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-08 07:43:49,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:49,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:49,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1216604042, now seen corresponding path program 1 times [2022-11-08 07:43:49,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:49,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489794074] [2022-11-08 07:43:49,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:49,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:49,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:49,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489794074] [2022-11-08 07:43:49,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489794074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:49,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:49,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-08 07:43:49,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615851610] [2022-11-08 07:43:49,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:49,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-08 07:43:49,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:49,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-08 07:43:49,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-08 07:43:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:49,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:49,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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) [2022-11-08 07:43:49,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-08 07:43:50,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:50,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:50,045 INFO L85 PathProgramCache]: Analyzing trace with hash -158699122, now seen corresponding path program 1 times [2022-11-08 07:43:50,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:50,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544049327] [2022-11-08 07:43:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:50,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:50,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:50,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544049327] [2022-11-08 07:43:50,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544049327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:50,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:50,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:43:50,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171175157] [2022-11-08 07:43:50,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:50,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:43:50,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:50,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:43:50,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:43:50,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,197 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:50,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-11-08 07:43:50,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-08 07:43:50,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:50,251 INFO L85 PathProgramCache]: Analyzing trace with hash -918994291, now seen corresponding path program 1 times [2022-11-08 07:43:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:50,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531883455] [2022-11-08 07:43:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:50,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:50,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:50,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:50,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531883455] [2022-11-08 07:43:50,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531883455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:50,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:50,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-08 07:43:50,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706836541] [2022-11-08 07:43:50,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:50,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-08 07:43:50,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-08 07:43:50,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-08 07:43:50,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,607 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:50,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2022-11-08 07:43:50,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-08 07:43:50,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:50,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:50,685 INFO L85 PathProgramCache]: Analyzing trace with hash 549121803, now seen corresponding path program 1 times [2022-11-08 07:43:50,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:50,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343081976] [2022-11-08 07:43:50,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:50,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:50,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:50,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343081976] [2022-11-08 07:43:50,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343081976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:50,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:50,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:43:50,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012512175] [2022-11-08 07:43:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:50,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-08 07:43:50,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-08 07:43:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-08 07:43:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:50,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-08 07:43:50,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:50,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-08 07:43:50,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-08 07:43:50,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-08 07:43:50,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-08 07:43:50,903 INFO L85 PathProgramCache]: Analyzing trace with hash -22203800, now seen corresponding path program 1 times [2022-11-08 07:43:50,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-08 07:43:50,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724725783] [2022-11-08 07:43:50,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-08 07:43:50,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-08 07:43:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-08 07:43:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-08 07:43:51,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-08 07:43:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724725783] [2022-11-08 07:43:51,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724725783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-08 07:43:51,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-08 07:43:51,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-08 07:43:51,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640089731] [2022-11-08 07:43:51,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-08 07:43:51,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-08 07:43:51,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-08 07:43:51,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-08 07:43:51,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-08 07:43:51,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-08 07:43:51,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-08 07:43:51,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 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) [2022-11-08 07:43:51,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-08 07:43:51,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:51,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-08 07:43:51,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-08 07:43:51,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.