./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6 --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 dfec19cb420bdcc992ee0af7789c6701a360457d4b79eebd70c54f4e314fbf3f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 01:44:38,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 01:44:38,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 01:44:38,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 01:44:38,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 01:44:38,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 01:44:38,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 01:44:38,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 01:44:38,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 01:44:38,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 01:44:38,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 01:44:38,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 01:44:38,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 01:44:38,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 01:44:38,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 01:44:38,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 01:44:38,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 01:44:38,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 01:44:38,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 01:44:38,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 01:44:38,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 01:44:38,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 01:44:38,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 01:44:38,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 01:44:38,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 01:44:38,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 01:44:38,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 01:44:38,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 01:44:38,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 01:44:38,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 01:44:38,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 01:44:38,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 01:44:38,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 01:44:38,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 01:44:38,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 01:44:38,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 01:44:38,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 01:44:38,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 01:44:38,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 01:44:38,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 01:44:38,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 01:44:38,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-16 01:44:38,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 01:44:38,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 01:44:38,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 01:44:38,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 01:44:38,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 01:44:38,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 01:44:38,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 01:44:38,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 01:44:38,203 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 01:44:38,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 01:44:38,205 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 01:44:38,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 01:44:38,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 01:44:38,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 01:44:38,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 01:44:38,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 01:44:38,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 01:44:38,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 01:44:38,207 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 01:44:38,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 01:44:38,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 01:44:38,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 01:44:38,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 01:44:38,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 01:44:38,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 01:44:38,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 01:44:38,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 01:44:38,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 01:44:38,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 01:44:38,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 01:44:38,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 01:44:38,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 01:44:38,210 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-16 01:44:38,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 01:44:38,211 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 01:44:38,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 01:44:38,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 01:44:38,211 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 01:44:38,212 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 01:44:38,212 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_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfec19cb420bdcc992ee0af7789c6701a360457d4b79eebd70c54f4e314fbf3f [2022-11-16 01:44:38,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 01:44:38,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 01:44:38,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 01:44:38,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 01:44:38,578 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 01:44:38,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-11-16 01:44:38,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/data/2fb32a00f/e30e600a67c34a039f6a212a15d36cd8/FLAG9c1469e89 [2022-11-16 01:44:39,066 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 01:44:39,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2022-11-16 01:44:39,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/data/2fb32a00f/e30e600a67c34a039f6a212a15d36cd8/FLAG9c1469e89 [2022-11-16 01:44:39,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/data/2fb32a00f/e30e600a67c34a039f6a212a15d36cd8 [2022-11-16 01:44:39,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 01:44:39,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 01:44:39,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 01:44:39,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 01:44:39,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 01:44:39,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d26f069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39, skipping insertion in model container [2022-11-16 01:44:39,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 01:44:39,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 01:44:39,713 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-11-16 01:44:39,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 01:44:39,723 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 01:44:39,759 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c[2098,2111] [2022-11-16 01:44:39,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 01:44:39,776 INFO L208 MainTranslator]: Completed translation [2022-11-16 01:44:39,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39 WrapperNode [2022-11-16 01:44:39,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 01:44:39,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 01:44:39,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 01:44:39,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 01:44:39,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,828 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-16 01:44:39,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 01:44:39,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 01:44:39,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 01:44:39,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 01:44:39,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 01:44:39,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 01:44:39,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 01:44:39,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 01:44:39,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (1/1) ... [2022-11-16 01:44:39,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 01:44:39,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:39,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 01:44:39,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 01:44:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 01:44:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 01:44:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 01:44:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 01:44:39,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 01:44:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 01:44:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 01:44:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 01:44:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 01:44:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 01:44:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 01:44:39,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 01:44:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 01:44:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 01:44:39,973 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 01:44:40,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 01:44:40,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 01:44:40,322 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 01:44:40,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 01:44:40,417 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 01:44:40,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:44:40 BoogieIcfgContainer [2022-11-16 01:44:40,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 01:44:40,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 01:44:40,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 01:44:40,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 01:44:40,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 01:44:39" (1/3) ... [2022-11-16 01:44:40,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e33ce2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:44:40, skipping insertion in model container [2022-11-16 01:44:40,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 01:44:39" (2/3) ... [2022-11-16 01:44:40,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e33ce2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 01:44:40, skipping insertion in model container [2022-11-16 01:44:40,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 01:44:40" (3/3) ... [2022-11-16 01:44:40,434 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2022-11-16 01:44:40,443 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 01:44:40,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 01:44:40,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 01:44:40,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 01:44:40,553 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 01:44:40,597 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 01:44:40,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 01:44:40,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:40,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 01:44:40,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 01:44:40,656 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 01:44:40,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2022-11-16 01:44:40,699 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;@5002bf68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 01:44:40,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 01:44:40,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:40,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2120558884, now seen corresponding path program 1 times [2022-11-16 01:44:40,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:40,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894620358] [2022-11-16 01:44:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:40,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:41,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894620358] [2022-11-16 01:44:41,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894620358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:41,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:41,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:44:41,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806953157] [2022-11-16 01:44:41,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:41,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 01:44:41,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 01:44:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 01:44:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:41,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:41,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 01:44:41,314 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:41,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:41,314 INFO L85 PathProgramCache]: Analyzing trace with hash 748948176, now seen corresponding path program 1 times [2022-11-16 01:44:41,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:41,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183692042] [2022-11-16 01:44:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:41,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:41,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:41,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183692042] [2022-11-16 01:44:41,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183692042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:41,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:41,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:44:41,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714992707] [2022-11-16 01:44:41,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:41,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 01:44:41,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:41,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 01:44:41,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 01:44:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,535 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:41,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:41,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:41,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 01:44:41,608 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash 818781854, now seen corresponding path program 1 times [2022-11-16 01:44:41,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:41,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877468855] [2022-11-16 01:44:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:41,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:41,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:41,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877468855] [2022-11-16 01:44:41,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877468855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:41,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:41,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 01:44:41,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662217273] [2022-11-16 01:44:41,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:41,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:44:41,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:41,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:44:41,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 01:44:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,779 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:41,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:41,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:41,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:41,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 01:44:41,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:41,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1234098174, now seen corresponding path program 1 times [2022-11-16 01:44:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:41,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559904702] [2022-11-16 01:44:41,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:41,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:41,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:41,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559904702] [2022-11-16 01:44:41,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559904702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:41,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:41,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 01:44:41,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115916085] [2022-11-16 01:44:41,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:41,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:44:41,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:44:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 01:44:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,974 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:41,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:41,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:41,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:41,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:41,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:42,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 01:44:42,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1234098176, now seen corresponding path program 1 times [2022-11-16 01:44:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:42,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87313970] [2022-11-16 01:44:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:42,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:42,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:42,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87313970] [2022-11-16 01:44:42,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87313970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:42,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:42,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:44:42,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205225963] [2022-11-16 01:44:42,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:42,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 01:44:42,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:42,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 01:44:42,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 01:44:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,208 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:42,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:42,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:42,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 01:44:42,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:42,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash -819247683, now seen corresponding path program 1 times [2022-11-16 01:44:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:42,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860994908] [2022-11-16 01:44:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:42,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:42,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860994908] [2022-11-16 01:44:42,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860994908] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:42,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356801678] [2022-11-16 01:44:42,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:42,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:42,434 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:42,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 01:44:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:42,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 01:44:42,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:42,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:42,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:42,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356801678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:42,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:42,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-11-16 01:44:42,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704261088] [2022-11-16 01:44:42,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:42,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 01:44:42,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:42,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 01:44:42,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 01:44:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,806 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:42,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:42,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:42,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:42,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:42,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:43,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:43,093 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:43,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:43,094 INFO L85 PathProgramCache]: Analyzing trace with hash -819247682, now seen corresponding path program 1 times [2022-11-16 01:44:43,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:43,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801176472] [2022-11-16 01:44:43,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:43,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:43,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:43,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801176472] [2022-11-16 01:44:43,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801176472] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:43,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379497591] [2022-11-16 01:44:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:43,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:43,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:43,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:43,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 01:44:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:43,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 01:44:43,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:43,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379497591] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:43,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 01:44:43,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 11 [2022-11-16 01:44:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605334182] [2022-11-16 01:44:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:43,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 01:44:43,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 01:44:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-16 01:44:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:43,739 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:43,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:43,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:43,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:43,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:43,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:43,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:43,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:43,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:43,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:44,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:44,017 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:44,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:44,018 INFO L85 PathProgramCache]: Analyzing trace with hash -282290103, now seen corresponding path program 1 times [2022-11-16 01:44:44,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:44,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327909973] [2022-11-16 01:44:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:44,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:44,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327909973] [2022-11-16 01:44:44,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327909973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:44,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487211633] [2022-11-16 01:44:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:44,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:44,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:44,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:44,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 01:44:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:44,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 01:44:44,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:44,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:44,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487211633] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:44,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:44,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-16 01:44:44,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319567822] [2022-11-16 01:44:44,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:44,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 01:44:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 01:44:44,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 01:44:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:44,399 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:44,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:44,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:44,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:44,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:44,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:44,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:44,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:44,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:44,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:44,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:44,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 01:44:44,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 01:44:44,759 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:44,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:44,759 INFO L85 PathProgramCache]: Analyzing trace with hash -161035311, now seen corresponding path program 1 times [2022-11-16 01:44:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:44,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674248038] [2022-11-16 01:44:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:44,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:44,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:44,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674248038] [2022-11-16 01:44:44,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674248038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:44,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:44,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:44:44,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202565535] [2022-11-16 01:44:44,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:44,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 01:44:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 01:44:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 01:44:44,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:44,817 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:44,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:44,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:44,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:44,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:44,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:44,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:45,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-16 01:44:45,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-16 01:44:45,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-16 01:44:45,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-16 01:44:45,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 01:44:45,541 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 01:44:45,543 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE (1/3) [2022-11-16 01:44:45,546 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 01:44:45,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 01:44:45,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:45,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 01:44:45,561 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 01:44:45,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2022-11-16 01:44:45,562 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;@5002bf68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 01:44:45,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 01:44:45,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-11-16 01:44:45,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:45,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2121285444, now seen corresponding path program 1 times [2022-11-16 01:44:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:45,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468067735] [2022-11-16 01:44:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:45,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468067735] [2022-11-16 01:44:45,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468067735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:45,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:45,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:44:45,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424184335] [2022-11-16 01:44:45,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:45,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 01:44:45,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:45,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 01:44:45,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 01:44:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,654 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:45,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:45,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 01:44:45,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:45,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1516471783, now seen corresponding path program 1 times [2022-11-16 01:44:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:45,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122517396] [2022-11-16 01:44:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:45,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:45,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:45,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122517396] [2022-11-16 01:44:45,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122517396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:45,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:45,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 01:44:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736958132] [2022-11-16 01:44:45,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:45,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 01:44:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:45,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 01:44:45,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 01:44:45,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,709 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:45,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:45,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:45,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 01:44:45,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:45,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1335459364, now seen corresponding path program 1 times [2022-11-16 01:44:45,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:45,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430089608] [2022-11-16 01:44:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:45,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:45,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:45,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430089608] [2022-11-16 01:44:45,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430089608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:45,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:45,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 01:44:45,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275173396] [2022-11-16 01:44:45,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:45,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:44:45,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:45,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:44:45,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 01:44:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,771 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:45,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:45,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:45,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:45,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 01:44:45,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 97984777, now seen corresponding path program 1 times [2022-11-16 01:44:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:45,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105380742] [2022-11-16 01:44:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:45,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105380742] [2022-11-16 01:44:45,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105380742] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288386157] [2022-11-16 01:44:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:45,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:45,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:45,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:45,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 01:44:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:45,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 01:44:45,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:46,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:46,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:46,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288386157] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:46,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:46,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-16 01:44:46,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697299782] [2022-11-16 01:44:46,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:46,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 01:44:46,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:46,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 01:44:46,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 01:44:46,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,144 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:46,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.0) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:46,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:46,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-16 01:44:46,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 01:44:46,376 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:46,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:46,376 INFO L85 PathProgramCache]: Analyzing trace with hash 97984778, now seen corresponding path program 1 times [2022-11-16 01:44:46,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:46,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687702395] [2022-11-16 01:44:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:46,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:46,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:46,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687702395] [2022-11-16 01:44:46,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687702395] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:46,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707865646] [2022-11-16 01:44:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:46,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:46,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 01:44:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:46,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 01:44:46,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:46,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 01:44:46,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707865646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:46,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 01:44:46,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-16 01:44:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949803760] [2022-11-16 01:44:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:46,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 01:44:46,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:46,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 01:44:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 01:44:46,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:46,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:46,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:46,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:46,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:46,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:46,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:46,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:46,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 01:44:46,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:46,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:46,828 INFO L85 PathProgramCache]: Analyzing trace with hash -325899060, now seen corresponding path program 1 times [2022-11-16 01:44:46,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:46,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739498256] [2022-11-16 01:44:46,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:46,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:46,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739498256] [2022-11-16 01:44:46,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739498256] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:46,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758593033] [2022-11-16 01:44:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:46,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:46,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:46,898 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:46,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 01:44:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:46,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 01:44:46,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:47,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:47,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:47,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758593033] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:47,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:47,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-16 01:44:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502335093] [2022-11-16 01:44:47,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:47,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 01:44:47,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:47,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 01:44:47,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 01:44:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,099 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:47,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:47,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:47,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:47,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-16 01:44:47,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 01:44:47,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:47,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1512935958, now seen corresponding path program 1 times [2022-11-16 01:44:47,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:47,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568218745] [2022-11-16 01:44:47,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:47,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:47,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:47,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568218745] [2022-11-16 01:44:47,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568218745] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:47,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28036439] [2022-11-16 01:44:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:47,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:47,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:47,530 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:47,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 01:44:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:47,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 01:44:47,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:47,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 01:44:47,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28036439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:47,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 01:44:47,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 01:44:47,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287305397] [2022-11-16 01:44:47,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:47,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 01:44:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:47,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 01:44:47,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 01:44:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,672 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:47,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:47,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:47,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:47,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:47,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:47,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:47,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 01:44:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:47,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:48,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 01:44:48,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:48,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1717406546, now seen corresponding path program 2 times [2022-11-16 01:44:48,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:48,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117685253] [2022-11-16 01:44:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:48,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:48,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117685253] [2022-11-16 01:44:48,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117685253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:48,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787193350] [2022-11-16 01:44:48,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 01:44:48,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:48,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:48,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 01:44:48,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 01:44:48,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:44:48,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 01:44:48,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:48,349 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:48,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:48,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787193350] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:48,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:48,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-16 01:44:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362783536] [2022-11-16 01:44:48,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:48,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 01:44:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:48,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 01:44:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-16 01:44:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:48,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:48,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 15.0) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:48,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:48,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:48,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:48,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:48,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:48,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-16 01:44:48,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:48,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 01:44:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:44:48,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:48,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 01:44:48,759 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:48,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1160238287, now seen corresponding path program 2 times [2022-11-16 01:44:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:48,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113447015] [2022-11-16 01:44:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:48,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:48,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:48,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113447015] [2022-11-16 01:44:48,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113447015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:48,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877371110] [2022-11-16 01:44:48,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 01:44:48,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:48,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:48,935 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 01:44:49,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 01:44:49,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:44:49,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 01:44:49,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-16 01:44:49,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:49,269 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-16 01:44:49,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877371110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:49,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:49,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2022-11-16 01:44:49,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767037761] [2022-11-16 01:44:49,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:49,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 01:44:49,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:49,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 01:44:49,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-16 01:44:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:49,272 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:49,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.0) internal successors, (120), 16 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:49,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:49,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:49,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:49,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:49,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:49,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-11-16 01:44:49,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:49,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 01:44:49,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:49,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:49,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:49,946 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:49,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:49,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1836433522, now seen corresponding path program 3 times [2022-11-16 01:44:49,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:49,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650253603] [2022-11-16 01:44:49,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:49,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:50,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650253603] [2022-11-16 01:44:50,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650253603] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:50,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896547798] [2022-11-16 01:44:50,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 01:44:50,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:50,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:50,195 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:50,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 01:44:50,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-16 01:44:50,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:44:50,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 01:44:50,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:50,458 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-11-16 01:44:50,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 01:44:50,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896547798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:50,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 01:44:50,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2022-11-16 01:44:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240571652] [2022-11-16 01:44:50,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:50,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 01:44:50,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:50,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 01:44:50,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 01:44:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,461 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:50,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:50,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:50,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:50,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:50,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:50,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:50,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:50,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:50,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:50,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:50,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:50,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:50,891 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1057801245, now seen corresponding path program 1 times [2022-11-16 01:44:50,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:50,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629031784] [2022-11-16 01:44:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:50,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-11-16 01:44:50,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:50,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629031784] [2022-11-16 01:44:50,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629031784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 01:44:50,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 01:44:50,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 01:44:50,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796306088] [2022-11-16 01:44:50,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 01:44:50,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 01:44:50,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:50,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 01:44:50,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 01:44:50,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,959 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:50,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:50,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:50,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:50,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:50,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:50,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:50,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 01:44:50,998 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:50,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:50,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1254584515, now seen corresponding path program 1 times [2022-11-16 01:44:50,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:50,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686718219] [2022-11-16 01:44:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:50,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 408 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:51,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:51,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686718219] [2022-11-16 01:44:51,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686718219] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:51,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007834359] [2022-11-16 01:44:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:51,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:51,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:51,392 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:51,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 01:44:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:51,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 01:44:51,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:51,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 8 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:52,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007834359] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:52,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:52,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 27 [2022-11-16 01:44:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883488347] [2022-11-16 01:44:52,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:52,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 01:44:52,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 01:44:52,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=400, Unknown=0, NotChecked=0, Total=756 [2022-11-16 01:44:52,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:52,194 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:52,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 9.185185185185185) internal successors, (248), 28 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:52,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:52,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:52,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:52,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:52,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:52,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:52,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:52,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:52,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-16 01:44:52,548 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:52,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:52,548 INFO L85 PathProgramCache]: Analyzing trace with hash 514484739, now seen corresponding path program 2 times [2022-11-16 01:44:52,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:52,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214488465] [2022-11-16 01:44:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1818 backedges. 0 proven. 1818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:53,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:53,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214488465] [2022-11-16 01:44:53,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214488465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:53,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811057431] [2022-11-16 01:44:53,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 01:44:53,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:53,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:53,467 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:53,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 01:44:53,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 01:44:53,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:44:53,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-16 01:44:53,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:53,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1818 backedges. 0 proven. 1816 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:53,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:44:55,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1818 backedges. 8 proven. 1810 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:55,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811057431] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:44:55,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:44:55,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 26] total 51 [2022-11-16 01:44:55,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334335411] [2022-11-16 01:44:55,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:44:55,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-16 01:44:55,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:44:55,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-16 01:44:55,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1280, Invalid=1372, Unknown=0, NotChecked=0, Total=2652 [2022-11-16 01:44:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:55,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:44:55,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 8.156862745098039) internal successors, (416), 52 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:44:55,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:55,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:55,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:55,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:55,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:55,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:55,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:44:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:44:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:44:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:44:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:44:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:44:55,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 01:44:56,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-16 01:44:56,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:44:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:44:56,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1240007549, now seen corresponding path program 3 times [2022-11-16 01:44:56,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:44:56,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061628456] [2022-11-16 01:44:56,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:44:56,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:44:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:44:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7662 backedges. 0 proven. 7662 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:44:59,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:44:59,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061628456] [2022-11-16 01:44:59,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061628456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:44:59,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681893777] [2022-11-16 01:44:59,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 01:44:59,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:44:59,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:44:59,091 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:44:59,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-16 01:44:59,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2022-11-16 01:44:59,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:44:59,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-16 01:44:59,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:44:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 7662 backedges. 0 proven. 7660 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:44:59,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:45:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 7662 backedges. 8 proven. 7654 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:45:03,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681893777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:45:03,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:45:03,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 50] total 99 [2022-11-16 01:45:03,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113346093] [2022-11-16 01:45:03,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:45:03,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-11-16 01:45:03,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:45:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-11-16 01:45:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4856, Invalid=5044, Unknown=0, NotChecked=0, Total=9900 [2022-11-16 01:45:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:45:03,778 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:45:03,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 7.595959595959596) internal successors, (752), 100 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:45:03,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:45:03,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:45:03,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:45:03,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:45:03,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:45:03,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:45:03,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:45:03,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:45:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:45:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:45:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:45:07,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-11-16 01:45:07,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-16 01:45:07,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:45:07,344 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:45:07,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:45:07,345 INFO L85 PathProgramCache]: Analyzing trace with hash -565534333, now seen corresponding path program 4 times [2022-11-16 01:45:07,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:45:07,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328296378] [2022-11-16 01:45:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:45:07,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:45:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:45:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 31446 backedges. 0 proven. 31446 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:45:17,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:45:17,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328296378] [2022-11-16 01:45:17,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328296378] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:45:17,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623828805] [2022-11-16 01:45:17,648 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 01:45:17,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:45:17,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:45:17,651 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:45:17,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-16 01:45:17,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 01:45:17,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:45:17,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-16 01:45:17,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:45:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 31446 backedges. 0 proven. 31444 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:45:19,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:45:31,001 INFO L134 CoverageAnalysis]: Checked inductivity of 31446 backedges. 8 proven. 31438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:45:31,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623828805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:45:31,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:45:31,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 97, 98] total 195 [2022-11-16 01:45:31,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327486401] [2022-11-16 01:45:31,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:45:31,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-11-16 01:45:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:45:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-11-16 01:45:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18920, Invalid=19300, Unknown=0, NotChecked=0, Total=38220 [2022-11-16 01:45:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:45:31,023 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:45:31,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 7.302564102564102) internal successors, (1424), 196 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:45:31,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:45:31,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-11-16 01:45:31,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:46:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:46:04,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:46:04,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-11-16 01:46:04,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-11-16 01:46:04,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-16 01:46:05,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-16 01:46:05,136 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:46:05,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:46:05,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1441010813, now seen corresponding path program 5 times [2022-11-16 01:46:05,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:46:05,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939047559] [2022-11-16 01:46:05,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:46:05,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:46:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 01:46:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 127398 backedges. 0 proven. 127398 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:46:45,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 01:46:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939047559] [2022-11-16 01:46:45,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939047559] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 01:46:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91308084] [2022-11-16 01:46:45,285 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 01:46:45,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:46:45,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 [2022-11-16 01:46:45,287 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 01:46:45,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-16 01:46:47,653 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 191 check-sat command(s) [2022-11-16 01:46:47,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 01:46:47,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 197 conjunts are in the unsatisfiable core [2022-11-16 01:46:47,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 01:46:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 127398 backedges. 0 proven. 127396 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 01:46:49,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 01:47:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 127398 backedges. 8 proven. 127390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 01:47:33,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91308084] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 01:47:33,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 01:47:33,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 193, 194] total 387 [2022-11-16 01:47:33,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347770031] [2022-11-16 01:47:33,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 01:47:33,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2022-11-16 01:47:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 01:47:33,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2022-11-16 01:47:33,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74696, Invalid=75460, Unknown=0, NotChecked=0, Total=150156 [2022-11-16 01:47:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:47:33,759 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 01:47:33,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 388 states, 387 states have (on average 7.152454780361757) internal successors, (2768), 388 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 01:47:33,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:47:33,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2022-11-16 01:47:33,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:55:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-16 01:55:38,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-11-16 01:55:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-11-16 01:55:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 385 states. [2022-11-16 01:55:38,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-16 01:55:38,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8d72762-6d27-40fd-8c51-deb6c7998e82/bin/ugemcutter-0EfhiD2kp6/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 01:55:38,753 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 01:55:38,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 01:55:38,754 INFO L85 PathProgramCache]: Analyzing trace with hash -546930813, now seen corresponding path program 6 times [2022-11-16 01:55:38,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 01:55:38,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026873308] [2022-11-16 01:55:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 01:55:38,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 01:55:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat