./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ecda181bd3fe1882667151a04232fb9d04292dd6ca3491d98fdc8de5d539856a --- 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-5e519f3 [2022-11-04 12:06:17,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-04 12:06:17,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-04 12:06:17,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-04 12:06:17,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-04 12:06:17,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-04 12:06:17,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-04 12:06:17,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-04 12:06:17,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-04 12:06:17,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-04 12:06:17,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-04 12:06:17,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-04 12:06:17,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-04 12:06:17,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-04 12:06:17,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-04 12:06:17,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-04 12:06:17,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-04 12:06:17,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-04 12:06:17,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-04 12:06:17,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-04 12:06:17,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-04 12:06:17,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-04 12:06:17,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-04 12:06:17,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-04 12:06:17,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-04 12:06:17,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-04 12:06:17,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-04 12:06:17,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-04 12:06:17,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-04 12:06:17,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-04 12:06:17,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-04 12:06:17,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-04 12:06:17,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-04 12:06:17,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-04 12:06:17,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-04 12:06:17,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-04 12:06:17,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-04 12:06:17,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-04 12:06:17,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-04 12:06:17,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-04 12:06:17,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-04 12:06:17,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-11-04 12:06:17,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-04 12:06:17,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-04 12:06:17,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-04 12:06:17,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-04 12:06:17,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-04 12:06:17,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-04 12:06:17,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-04 12:06:17,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-04 12:06:17,441 INFO L138 SettingsManager]: * Use SBE=true [2022-11-04 12:06:17,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-04 12:06:17,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-04 12:06:17,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-04 12:06:17,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-04 12:06:17,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-04 12:06:17,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-04 12:06:17,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-04 12:06:17,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-04 12:06:17,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-04 12:06:17,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-04 12:06:17,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-04 12:06:17,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-04 12:06:17,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-04 12:06:17,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-04 12:06:17,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-04 12:06:17,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-04 12:06:17,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-04 12:06:17,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-04 12:06:17,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-04 12:06:17,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-04 12:06:17,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-04 12:06:17,448 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-04 12:06:17,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-04 12:06:17,449 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-04 12:06:17,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-04 12:06:17,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-04 12:06:17,450 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-04 12:06:17,450 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-04 12:06:17,450 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_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecda181bd3fe1882667151a04232fb9d04292dd6ca3491d98fdc8de5d539856a [2022-11-04 12:06:17,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-04 12:06:17,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-04 12:06:17,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-04 12:06:17,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-04 12:06:17,806 INFO L275 PluginConnector]: CDTParser initialized [2022-11-04 12:06:17,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2022-11-04 12:06:17,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/data/88a8ef1cf/6722ca306f2b4d13b15ea8baf5000240/FLAG42f1275f2 [2022-11-04 12:06:18,302 INFO L306 CDTParser]: Found 1 translation units. [2022-11-04 12:06:18,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2022-11-04 12:06:18,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/data/88a8ef1cf/6722ca306f2b4d13b15ea8baf5000240/FLAG42f1275f2 [2022-11-04 12:06:18,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/data/88a8ef1cf/6722ca306f2b4d13b15ea8baf5000240 [2022-11-04 12:06:18,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-04 12:06:18,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-04 12:06:18,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-04 12:06:18,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-04 12:06:18,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-04 12:06:18,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:18,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761716e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18, skipping insertion in model container [2022-11-04 12:06:18,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:18,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-04 12:06:18,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-04 12:06:18,934 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c[2924,2937] [2022-11-04 12:06:18,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-04 12:06:18,951 INFO L203 MainTranslator]: Completed pre-run [2022-11-04 12:06:18,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c[2924,2937] [2022-11-04 12:06:18,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-04 12:06:18,988 INFO L208 MainTranslator]: Completed translation [2022-11-04 12:06:18,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18 WrapperNode [2022-11-04 12:06:18,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-04 12:06:18,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-04 12:06:18,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-04 12:06:18,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-04 12:06:18,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,056 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 191 [2022-11-04 12:06:19,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-04 12:06:19,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-04 12:06:19,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-04 12:06:19,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-04 12:06:19,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,112 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-04 12:06:19,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-04 12:06:19,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-04 12:06:19,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-04 12:06:19,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (1/1) ... [2022-11-04 12:06:19,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-04 12:06:19,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:06:19,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-04 12:06:19,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-04 12:06:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-04 12:06:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-04 12:06:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-04 12:06:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-04 12:06:19,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-04 12:06:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-04 12:06:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-04 12:06:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-04 12:06:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-04 12:06:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-04 12:06:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-04 12:06:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-04 12:06:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-04 12:06:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-04 12:06:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-04 12:06:19,209 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-04 12:06:19,336 INFO L235 CfgBuilder]: Building ICFG [2022-11-04 12:06:19,339 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-04 12:06:19,781 INFO L276 CfgBuilder]: Performing block encoding [2022-11-04 12:06:19,906 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-04 12:06:19,906 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-04 12:06:19,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:06:19 BoogieIcfgContainer [2022-11-04 12:06:19,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-04 12:06:19,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-04 12:06:19,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-04 12:06:19,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-04 12:06:19,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 12:06:18" (1/3) ... [2022-11-04 12:06:19,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f208dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:06:19, skipping insertion in model container [2022-11-04 12:06:19,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 12:06:18" (2/3) ... [2022-11-04 12:06:19,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f208dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 12:06:19, skipping insertion in model container [2022-11-04 12:06:19,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 12:06:19" (3/3) ... [2022-11-04 12:06:19,924 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2022-11-04 12:06:19,937 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-04 12:06:19,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-04 12:06:19,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-04 12:06:19,951 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-04 12:06:20,114 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-04 12:06:20,188 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-04 12:06:20,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-04 12:06:20,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:06:20,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-04 12:06:20,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-04 12:06:20,241 INFO L156 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-04 12:06:20,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-04 12:06:20,275 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;@7e3a4026, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-04 12:06:20,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-04 12:06:20,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:20,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:20,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1885589734, now seen corresponding path program 1 times [2022-11-04 12:06:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:20,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724419469] [2022-11-04 12:06:20,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:20,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-04 12:06:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:20,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724419469] [2022-11-04 12:06:20,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724419469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-04 12:06:20,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-04 12:06:20,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-04 12:06:20,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639165664] [2022-11-04 12:06:20,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-04 12:06:20,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-04 12:06:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-04 12:06:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-04 12:06:20,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:20,921 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:20,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 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) [2022-11-04 12:06:20,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:20,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-04 12:06:20,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:20,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:20,957 INFO L85 PathProgramCache]: Analyzing trace with hash 532094629, now seen corresponding path program 1 times [2022-11-04 12:06:20,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:20,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820693370] [2022-11-04 12:06:20,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:20,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-04 12:06:21,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:21,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820693370] [2022-11-04 12:06:21,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820693370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-04 12:06:21,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-04 12:06:21,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-04 12:06:21,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912379648] [2022-11-04 12:06:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-04 12:06:21,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-04 12:06:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:21,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-04 12:06:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-04 12:06:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:21,668 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:21,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2022-11-04 12:06:21,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:21,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:21,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-04 12:06:21,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:21,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:21,864 INFO L85 PathProgramCache]: Analyzing trace with hash 90971035, now seen corresponding path program 1 times [2022-11-04 12:06:21,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:21,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947537906] [2022-11-04 12:06:21,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:21,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-04 12:06:22,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:22,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947537906] [2022-11-04 12:06:22,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947537906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-04 12:06:22,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-04 12:06:22,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-04 12:06:22,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618158968] [2022-11-04 12:06:22,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-04 12:06:22,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-04 12:06:22,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:22,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-04 12:06:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-04 12:06:22,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:22,453 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:22,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2022-11-04 12:06:22,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:22,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:22,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:22,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-04 12:06:22,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:22,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:22,713 INFO L85 PathProgramCache]: Analyzing trace with hash 276527094, now seen corresponding path program 1 times [2022-11-04 12:06:22,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:22,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613303437] [2022-11-04 12:06:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:22,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:23,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:23,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613303437] [2022-11-04 12:06:23,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613303437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-04 12:06:23,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-04 12:06:23,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-04 12:06:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021051104] [2022-11-04 12:06:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-04 12:06:23,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-04 12:06:23,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:23,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-04 12:06:23,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-04 12:06:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:23,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:23,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-04 12:06:23,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:23,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:23,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:23,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:23,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:23,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-04 12:06:23,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:23,418 INFO L85 PathProgramCache]: Analyzing trace with hash 83365203, now seen corresponding path program 1 times [2022-11-04 12:06:23,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:23,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394592020] [2022-11-04 12:06:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:23,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-04 12:06:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394592020] [2022-11-04 12:06:23,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394592020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-04 12:06:23,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-04 12:06:23,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-04 12:06:23,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850160889] [2022-11-04 12:06:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-04 12:06:23,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-04 12:06:23,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-04 12:06:23,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-04 12:06:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:23,730 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:23,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 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) [2022-11-04 12:06:23,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:23,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:23,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:23,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:23,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:24,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:24,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-04 12:06:24,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:24,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:24,053 INFO L85 PathProgramCache]: Analyzing trace with hash -732015546, now seen corresponding path program 1 times [2022-11-04 12:06:24,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:24,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133791914] [2022-11-04 12:06:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:24,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:26,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:26,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133791914] [2022-11-04 12:06:26,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133791914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:06:26,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746414094] [2022-11-04 12:06:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:26,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:26,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:06:26,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:06:26,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-04 12:06:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:26,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-04 12:06:26,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:06:29,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-04 12:06:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:29,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:06:29,908 INFO L356 Elim1Store]: treesize reduction 15, result has 83.9 percent of original size [2022-11-04 12:06:29,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 103 [2022-11-04 12:06:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:31,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746414094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:06:31,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:06:31,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 20] total 56 [2022-11-04 12:06:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641698314] [2022-11-04 12:06:31,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:06:31,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-04 12:06:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-04 12:06:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2022-11-04 12:06:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:31,785 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:31,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.267857142857143) internal successors, (407), 56 states have internal predecessors, (407), 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) [2022-11-04 12:06:31,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:31,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:31,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:31,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:31,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:31,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-04 12:06:37,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-04 12:06:37,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:37,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:37,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:37,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1531297126, now seen corresponding path program 2 times [2022-11-04 12:06:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:37,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458475702] [2022-11-04 12:06:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:37,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-04 12:06:38,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:38,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458475702] [2022-11-04 12:06:38,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458475702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:06:38,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875905897] [2022-11-04 12:06:38,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-04 12:06:38,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:38,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:06:38,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:06:38,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-04 12:06:38,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-04 12:06:38,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:06:38,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-04 12:06:38,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:06:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-04 12:06:38,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-04 12:06:38,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875905897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-04 12:06:38,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-04 12:06:38,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-11-04 12:06:38,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160917797] [2022-11-04 12:06:38,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-04 12:06:38,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-04 12:06:38,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-04 12:06:38,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-04 12:06:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:38,613 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:38,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2022-11-04 12:06:38,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:38,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:38,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:38,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-11-04 12:06:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-04 12:06:38,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:06:38,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-04 12:06:38,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:38,990 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:38,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 501168425, now seen corresponding path program 3 times [2022-11-04 12:06:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:38,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950129670] [2022-11-04 12:06:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:39,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:39,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950129670] [2022-11-04 12:06:39,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950129670] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:06:39,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906446049] [2022-11-04 12:06:39,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-04 12:06:39,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:39,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:06:39,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:06:39,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-04 12:06:39,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-04 12:06:39,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:06:39,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-04 12:06:39,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:06:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:40,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:06:40,448 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:40,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906446049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:06:40,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:06:40,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 23 [2022-11-04 12:06:40,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103290999] [2022-11-04 12:06:40,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:06:40,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-04 12:06:40,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:06:40,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-04 12:06:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-11-04 12:06:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:40,456 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:06:40,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 15.173913043478262) internal successors, (349), 23 states have internal predecessors, (349), 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) [2022-11-04 12:06:40,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:40,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:40,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:40,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:40,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:40,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-11-04 12:06:40,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:06:40,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:06:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:06:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:06:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:06:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-04 12:06:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:06:43,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-04 12:06:43,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-04 12:06:43,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:43,659 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:06:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:06:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -282215482, now seen corresponding path program 4 times [2022-11-04 12:06:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:06:43,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766374993] [2022-11-04 12:06:43,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:06:43,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:06:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:06:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:06:47,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:06:47,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766374993] [2022-11-04 12:06:47,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766374993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:06:47,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955367299] [2022-11-04 12:06:47,226 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-04 12:06:47,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:06:47,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:06:47,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:06:47,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-04 12:06:47,350 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-04 12:06:47,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:06:47,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-04 12:06:47,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:06:49,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-04 12:06:49,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-04 12:06:49,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-04 12:06:49,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-04 12:06:50,051 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-04 12:06:50,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 10 [2022-11-04 12:06:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-04 12:06:50,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:06:55,309 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset (* c_~i~0 4))) (.cse3 (* c_~end~0 4))) (and (forall ((v_ArrVal_192 (Array Int Int)) (~queue~0.base Int) (~queue~0.offset Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_192))) (let ((.cse2 (select .cse0 ~queue~0.base))) (or (not (= (select (select .cse0 c_~A~0.base) .cse1) (select .cse2 (+ .cse3 ~queue~0.offset)))) (< (select .cse2 (+ (* c_~start~0 4) ~queue~0.offset)) (+ c_~v_old~0 1)))))) (or (forall ((v_ArrVal_192 (Array Int Int)) (~queue~0.base Int) (~queue~0.offset Int)) (not (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_192))) (= (select (select .cse4 c_~A~0.base) .cse1) (select (select .cse4 ~queue~0.base) (+ .cse3 ~queue~0.offset)))))) (not (= (mod c_~ok~0 256) 0))))) is different from false [2022-11-04 12:06:55,406 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset (* c_~i~0 4))) (.cse2 (* c_~end~0 4))) (and (or (not (= (mod c_~ok~0 256) 0)) (forall ((v_ArrVal_191 (Array Int Int)) (v_ArrVal_192 (Array Int Int)) (~queue~0.base Int) (~queue~0.offset Int)) (not (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_191) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_192))) (= (select (select .cse0 c_~A~0.base) .cse1) (select (select .cse0 ~queue~0.base) (+ .cse2 ~queue~0.offset))))))) (forall ((v_ArrVal_191 (Array Int Int)) (v_ArrVal_192 (Array Int Int)) (~queue~0.base Int) (~queue~0.offset Int)) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_191) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_192))) (let ((.cse3 (select .cse4 ~queue~0.base))) (or (< (select .cse3 (+ (* c_~start~0 4) ~queue~0.offset)) (+ c_~v_old~0 1)) (not (= (select (select .cse4 c_~A~0.base) .cse1) (select .cse3 (+ .cse2 ~queue~0.offset)))))))))) is different from false [2022-11-04 12:06:55,498 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~A~0.offset (* c_~i~0 4))) (.cse2 (* c_~end~0 4))) (and (or (not (= (mod c_~ok~0 256) 0)) (forall ((v_ArrVal_191 (Array Int Int)) (v_ArrVal_192 (Array Int Int)) (~queue~0.base Int) (~queue~0.offset Int)) (not (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_191) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_192))) (= (select (select .cse0 c_~A~0.base) .cse1) (select (select .cse0 ~queue~0.base) (+ .cse2 ~queue~0.offset))))))) (forall ((v_ArrVal_191 (Array Int Int)) (v_ArrVal_192 (Array Int Int)) (~queue~0.base Int) (~queue~0.offset Int)) (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_191) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_192))) (let ((.cse3 (select .cse4 ~queue~0.base))) (or (< (select .cse3 (+ (* c_~start~0 4) ~queue~0.offset)) (+ |c_ULTIMATE.start_main_#t~mem14#1| 1)) (not (= (select (select .cse4 c_~A~0.base) .cse1) (select .cse3 (+ .cse2 ~queue~0.offset)))))))))) is different from false [2022-11-04 12:06:55,615 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:06:55,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1801 treesize of output 1687 [2022-11-04 12:06:55,677 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:06:55,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1528 treesize of output 1471 [2022-11-04 12:06:55,744 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:06:55,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1426 treesize of output 1267 [2022-11-04 12:06:55,792 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:06:55,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1222 treesize of output 1143 [2022-11-04 12:06:55,843 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:06:55,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1126 treesize of output 951 [2022-11-04 12:07:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 1 not checked. [2022-11-04 12:07:09,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955367299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:07:09,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:07:09,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 25, 24] total 70 [2022-11-04 12:07:09,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719863025] [2022-11-04 12:07:09,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:07:09,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-04 12:07:09,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:07:09,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-04 12:07:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=4077, Unknown=15, NotChecked=396, Total=4830 [2022-11-04 12:07:09,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:09,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:07:09,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 6.242857142857143) internal successors, (437), 70 states have internal predecessors, (437), 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) [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:07:09,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-11-04 12:07:09,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-04 12:07:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-11-04 12:07:25,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-04 12:07:26,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:07:26,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:07:26,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:07:26,040 INFO L85 PathProgramCache]: Analyzing trace with hash 579947454, now seen corresponding path program 5 times [2022-11-04 12:07:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:07:26,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146056592] [2022-11-04 12:07:26,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:07:26,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:07:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:07:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:07:28,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:07:28,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146056592] [2022-11-04 12:07:28,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146056592] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:07:28,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773548520] [2022-11-04 12:07:28,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-04 12:07:28,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:07:28,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:07:28,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:07:28,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-04 12:07:28,192 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-04 12:07:28,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:07:28,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-04 12:07:28,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:07:28,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:07:28,377 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-04 12:07:28,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-04 12:07:31,267 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-04 12:07:31,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-11-04 12:07:31,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-04 12:07:31,622 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-11-04 12:07:31,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-11-04 12:07:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-04 12:07:31,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:07:32,052 WARN L833 $PredicateComparison]: unable to prove that (or (< c_~start~0 0) (<= c_~end~0 c_~start~0) (and (forall ((v_ArrVal_226 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_226) c_~queue~0.base) (+ (* c_~start~0 4) c_~queue~0.offset)) (+ c_~v_old~0 1))) (not (= (mod c_~ok~0 256) 0)))) is different from false [2022-11-04 12:07:32,382 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:07:32,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 139 [2022-11-04 12:07:32,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2022-11-04 12:07:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-04 12:07:34,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773548520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:07:34,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:07:34,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 22, 20] total 55 [2022-11-04 12:07:34,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784996643] [2022-11-04 12:07:34,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:07:34,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-04 12:07:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:07:34,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-04 12:07:34,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=2541, Unknown=2, NotChecked=104, Total=2970 [2022-11-04 12:07:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:34,453 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:07:34,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 7.2) internal successors, (396), 55 states have internal predecessors, (396), 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) [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:07:34,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-11-04 12:07:34,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-11-04 12:07:34,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-04 12:07:39,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-04 12:07:39,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-04 12:07:40,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-04 12:07:40,043 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:07:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:07:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1182337734, now seen corresponding path program 6 times [2022-11-04 12:07:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:07:40,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021550516] [2022-11-04 12:07:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:07:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:07:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:07:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:07:42,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:07:42,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021550516] [2022-11-04 12:07:42,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021550516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:07:42,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469350684] [2022-11-04 12:07:42,165 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-04 12:07:42,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:07:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:07:42,166 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:07:42,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-04 12:07:42,302 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-04 12:07:42,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:07:42,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-04 12:07:42,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:07:42,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:07:42,635 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-04 12:07:42,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-04 12:07:44,216 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-04 12:07:44,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 45 [2022-11-04 12:07:44,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-04 12:07:44,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:07:44,622 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:07:44,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-11-04 12:07:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:07:44,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:07:45,094 WARN L833 $PredicateComparison]: unable to prove that (or (and (forall ((v_ArrVal_260 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_260) c_~queue~0.base) (+ (* c_~start~0 4) c_~queue~0.offset)) (+ c_~v_old~0 1))) (not (= (mod c_~ok~0 256) 0))) (< c_~start~0 0) (<= c_~end~0 c_~start~0) (<= c_~n~0 c_~start~0)) is different from false [2022-11-04 12:07:45,416 INFO L356 Elim1Store]: treesize reduction 19, result has 62.7 percent of original size [2022-11-04 12:07:45,417 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 72 [2022-11-04 12:07:45,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2022-11-04 12:07:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:07:48,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469350684] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:07:48,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:07:48,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28, 26] total 70 [2022-11-04 12:07:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931629207] [2022-11-04 12:07:48,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:07:48,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-11-04 12:07:48,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:07:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-11-04 12:07:48,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=548, Invalid=4147, Unknown=1, NotChecked=134, Total=4830 [2022-11-04 12:07:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:48,543 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:07:48,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 6.0285714285714285) internal successors, (422), 70 states have internal predecessors, (422), 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) [2022-11-04 12:07:48,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:07:48,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:07:48,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:07:48,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-11-04 12:07:48,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:08:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:08:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-04 12:08:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:08:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-04 12:08:10,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-04 12:08:10,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-04 12:08:11,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:08:11,023 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:08:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:08:11,024 INFO L85 PathProgramCache]: Analyzing trace with hash 883815377, now seen corresponding path program 1 times [2022-11-04 12:08:11,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:08:11,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967530798] [2022-11-04 12:08:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:08:11,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:08:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:08:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-04 12:08:17,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:08:17,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967530798] [2022-11-04 12:08:17,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967530798] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:08:17,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302050004] [2022-11-04 12:08:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:08:17,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:08:17,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:08:17,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:08:17,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-04 12:08:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:08:17,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-04 12:08:17,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:08:17,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:08:17,835 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-04 12:08:17,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-04 12:08:19,558 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-04 12:08:19,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-11-04 12:08:19,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-04 12:08:19,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-04 12:08:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-04 12:08:20,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:08:20,362 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_298 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_298) c_~queue~0.base) (+ (* c_~start~0 4) c_~queue~0.offset)) (+ c_~v_old~0 1))) (not (= (mod c_~ok~0 256) 0))) is different from false [2022-11-04 12:08:20,752 INFO L356 Elim1Store]: treesize reduction 19, result has 62.7 percent of original size [2022-11-04 12:08:20,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 72 [2022-11-04 12:08:20,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2022-11-04 12:08:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 4 not checked. [2022-11-04 12:08:23,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302050004] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:08:23,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:08:23,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 28, 26] total 92 [2022-11-04 12:08:23,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097081790] [2022-11-04 12:08:23,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:08:23,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-04 12:08:23,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:08:23,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-04 12:08:23,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=7637, Unknown=1, NotChecked=178, Total=8372 [2022-11-04 12:08:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:08:23,471 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:08:23,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 4.978260869565218) internal successors, (458), 92 states have internal predecessors, (458), 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) [2022-11-04 12:08:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:08:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:08:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:08:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:08:23,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-11-04 12:08:23,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:09:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:09:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-04 12:09:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-11-04 12:09:21,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-04 12:09:21,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-04 12:09:21,220 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:09:21,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:09:21,222 INFO L85 PathProgramCache]: Analyzing trace with hash 819178703, now seen corresponding path program 2 times [2022-11-04 12:09:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:09:21,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532633849] [2022-11-04 12:09:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:09:21,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:09:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:09:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-04 12:09:23,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:09:23,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532633849] [2022-11-04 12:09:23,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532633849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:09:23,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492960773] [2022-11-04 12:09:23,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-04 12:09:23,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:09:23,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:09:23,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:09:23,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-04 12:09:23,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-04 12:09:23,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:09:23,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-04 12:09:23,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:09:23,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:09:23,799 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-04 12:09:23,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-04 12:09:25,282 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-04 12:09:25,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-11-04 12:09:25,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-04 12:09:25,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-04 12:09:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-04 12:09:25,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:09:26,609 INFO L356 Elim1Store]: treesize reduction 19, result has 62.7 percent of original size [2022-11-04 12:09:26,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 72 [2022-11-04 12:09:26,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2022-11-04 12:09:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-04 12:09:29,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492960773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:09:29,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:09:29,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26, 27] total 67 [2022-11-04 12:09:29,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843061091] [2022-11-04 12:09:29,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:09:29,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-11-04 12:09:29,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:09:29,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-11-04 12:09:29,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=473, Invalid=3946, Unknown=3, NotChecked=0, Total=4422 [2022-11-04 12:09:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:09:29,679 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:09:29,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.358208955223881) internal successors, (426), 67 states have internal predecessors, (426), 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) [2022-11-04 12:09:29,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:09:29,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-11-04 12:09:29,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-11-04 12:09:29,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-11-04 12:09:29,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2022-11-04 12:09:29,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:10:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:10:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-04 12:10:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-11-04 12:10:08,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-11-04 12:10:08,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-11-04 12:10:08,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-11-04 12:10:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-11-04 12:10:08,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-04 12:10:09,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:10:09,050 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:10:09,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:10:09,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1186117705, now seen corresponding path program 7 times [2022-11-04 12:10:09,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:10:09,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755601580] [2022-11-04 12:10:09,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:10:09,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:10:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:10:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:10:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:10:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755601580] [2022-11-04 12:10:11,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755601580] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:10:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817753193] [2022-11-04 12:10:11,722 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-04 12:10:11,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:10:11,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:10:11,723 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:10:11,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-04 12:10:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:10:11,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-04 12:10:11,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:10:13,327 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-04 12:10:13,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 10 [2022-11-04 12:10:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:10:13,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:10:13,921 INFO L356 Elim1Store]: treesize reduction 15, result has 83.9 percent of original size [2022-11-04 12:10:13,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 103 [2022-11-04 12:10:15,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-04 12:10:15,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817753193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-04 12:10:15,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-04 12:10:15,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 20] total 55 [2022-11-04 12:10:15,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829006905] [2022-11-04 12:10:15,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-04 12:10:15,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-04 12:10:15,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-04 12:10:15,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-04 12:10:15,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=617, Invalid=2353, Unknown=0, NotChecked=0, Total=2970 [2022-11-04 12:10:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:10:15,808 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-04 12:10:15,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 7.836363636363636) internal successors, (431), 55 states have internal predecessors, (431), 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) [2022-11-04 12:10:15,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:10:15,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:10:15,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:10:15,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:10:15,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 255 states. [2022-11-04 12:10:15,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 146 states. [2022-11-04 12:10:15,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:10:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-11-04 12:10:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-11-04 12:10:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-11-04 12:10:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2022-11-04 12:10:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-04 12:10:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-11-04 12:10:26,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-04 12:10:26,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-04 12:10:26,256 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-04 12:10:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-04 12:10:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash 335291463, now seen corresponding path program 8 times [2022-11-04 12:10:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-04 12:10:26,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304102698] [2022-11-04 12:10:26,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-04 12:10:26,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-04 12:10:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-04 12:10:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-04 12:10:29,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-04 12:10:29,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304102698] [2022-11-04 12:10:29,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304102698] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-04 12:10:29,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670644256] [2022-11-04 12:10:29,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-04 12:10:29,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-04 12:10:29,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 [2022-11-04 12:10:29,483 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-04 12:10:29,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac5d3c7-6ff5-423c-ae59-b17783a9c1ca/bin/ugemcutter-C1kR7RIaUi/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-04 12:10:29,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-04 12:10:29,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-04 12:10:29,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-04 12:10:29,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-04 12:10:29,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:10:30,134 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-04 12:10:30,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-04 12:10:30,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-04 12:10:30,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-04 12:10:31,600 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-04 12:10:31,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-04 12:10:31,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:10:31,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:10:32,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:10:32,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-04 12:10:34,657 INFO L356 Elim1Store]: treesize reduction 41, result has 56.8 percent of original size [2022-11-04 12:10:34,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 69 [2022-11-04 12:10:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-04 12:10:34,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-04 12:10:59,034 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:10:59,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 235 treesize of output 140 [2022-11-04 12:10:59,149 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:10:59,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 887970 treesize of output 820220 [2022-11-04 12:11:01,855 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:11:01,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 818632 treesize of output 767318 [2022-11-04 12:11:03,958 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:11:03,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 768738 treesize of output 666032 [2022-11-04 12:11:06,086 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:11:06,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 665954 treesize of output 460464 [2022-11-04 12:11:47,326 WARN L234 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 531 DAG size of output: 531 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-04 12:12:03,022 WARN L234 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 517 DAG size of output: 517 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-04 12:12:32,966 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:12:32,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 315 treesize of output 180 [2022-11-04 12:12:33,267 INFO L356 Elim1Store]: treesize reduction 17, result has 92.3 percent of original size [2022-11-04 12:12:33,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 225319 treesize of output 208302 [2022-11-04 12:12:34,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:12:34,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:12:34,479 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:12:34,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 206601 treesize of output 193729 [2022-11-04 12:12:35,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:12:35,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:12:35,199 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:12:35,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 195055 treesize of output 169139 [2022-11-04 12:12:35,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:12:35,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-04 12:12:35,956 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-04 12:12:35,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 168967 treesize of output 116963