./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d --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 c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:45:07,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:45:07,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:45:07,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:45:07,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:45:07,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:45:07,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:45:07,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:45:07,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:45:07,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:45:07,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:45:07,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:45:07,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:45:07,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:45:07,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:45:07,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:45:07,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:45:07,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:45:07,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:45:07,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:45:07,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:45:07,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:45:07,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:45:07,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:45:07,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:45:07,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:45:07,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:45:07,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:45:07,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:45:07,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:45:07,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:45:07,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:45:07,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:45:07,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:45:07,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:45:07,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:45:07,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:45:07,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:45:07,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:45:07,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:45:07,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:45:07,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-20 07:45:07,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:45:07,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:45:07,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:45:07,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:45:07,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:45:07,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:45:07,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:45:07,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:45:07,261 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:45:07,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:45:07,262 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:45:07,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:45:07,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:45:07,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:45:07,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:45:07,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:45:07,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:45:07,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:45:07,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:45:07,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:45:07,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:45:07,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:45:07,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:45:07,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-20 07:45:07,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:45:07,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:45:07,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:45:07,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:45:07,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:45:07,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:45:07,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:45:07,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:45:07,269 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-20 07:45:07,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:45:07,269 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-20 07:45:07,269 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-20 07:45:07,270 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_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6847e0a77224cc67de11826c53270ee36a6eb5754e5add0bb0a49165dff2879 [2021-11-20 07:45:07,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:45:07,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:45:07,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:45:07,538 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:45:07,539 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:45:07,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/../../sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2021-11-20 07:45:07,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/data/1887146b5/7b874c740eb84c94a614b175940e944d/FLAG5cd3bb491 [2021-11-20 07:45:08,056 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:45:08,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c [2021-11-20 07:45:08,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/data/1887146b5/7b874c740eb84c94a614b175940e944d/FLAG5cd3bb491 [2021-11-20 07:45:08,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/data/1887146b5/7b874c740eb84c94a614b175940e944d [2021-11-20 07:45:08,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:45:08,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:45:08,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:45:08,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:45:08,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:45:08,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12632283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08, skipping insertion in model container [2021-11-20 07:45:08,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:45:08,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:45:08,677 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_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2021-11-20 07:45:08,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:45:08,693 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:45:08,721 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_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/sv-benchmarks/c/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2021-11-20 07:45:08,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:45:08,741 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:45:08,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08 WrapperNode [2021-11-20 07:45:08,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:45:08,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:45:08,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:45:08,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:45:08,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,791 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2021-11-20 07:45:08,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:45:08,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:45:08,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:45:08,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:45:08,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:45:08,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:45:08,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:45:08,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:45:08,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (1/1) ... [2021-11-20 07:45:08,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:45:08,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:08,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:45:08,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:45:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:45:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:45:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:45:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:45:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-20 07:45:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-20 07:45:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-20 07:45:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-20 07:45:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-20 07:45:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-20 07:45:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:45:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-20 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-20 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:45:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:45:08,969 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 07:45:09,116 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:45:09,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:45:09,564 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:45:09,687 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:45:09,687 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 07:45:09,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:45:09 BoogieIcfgContainer [2021-11-20 07:45:09,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:45:09,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:45:09,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:45:09,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:45:09,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:45:08" (1/3) ... [2021-11-20 07:45:09,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c83ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:45:09, skipping insertion in model container [2021-11-20 07:45:09,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:45:08" (2/3) ... [2021-11-20 07:45:09,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c83ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:45:09, skipping insertion in model container [2021-11-20 07:45:09,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:45:09" (3/3) ... [2021-11-20 07:45:09,699 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2021-11-20 07:45:09,705 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:45:09,705 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:45:09,705 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:45:09,705 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:45:09,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,760 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,760 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,760 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,760 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,761 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,761 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,761 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,761 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,761 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,762 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,762 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,762 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,762 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,762 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,763 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,763 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,763 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,763 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,764 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,764 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,764 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,764 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,776 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,777 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,778 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,779 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,780 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,780 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,781 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,781 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,782 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,782 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,783 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,783 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,783 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:45:09,786 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-20 07:45:09,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-20 07:45:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:09,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-20 07:45:09,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-20 07:45:09,927 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-20 07:45:09,942 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:45:09,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 07:45:10,197 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:10,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:10,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1247185842, now seen corresponding path program 1 times [2021-11-20 07:45:10,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:10,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589386475] [2021-11-20 07:45:10,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:10,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:45:10,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:10,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589386475] [2021-11-20 07:45:10,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589386475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:10,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:10,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:45:10,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611593255] [2021-11-20 07:45:10,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:10,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:45:10,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:10,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:45:10,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:45:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:10,535 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:10,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 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) [2021-11-20 07:45:10,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:10,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:45:10,643 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash 461426383, now seen corresponding path program 1 times [2021-11-20 07:45:10,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:10,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44633437] [2021-11-20 07:45:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:10,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:45:10,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:10,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44633437] [2021-11-20 07:45:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44633437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:10,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:10,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:45:10,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665665599] [2021-11-20 07:45:10,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:10,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:45:10,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:10,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:45:10,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:45:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:10,945 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:10,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:10,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:10,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:11,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:45:11,286 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:11,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:11,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1582218856, now seen corresponding path program 1 times [2021-11-20 07:45:11,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:11,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374421846] [2021-11-20 07:45:11,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:11,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:11,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:11,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:11,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374421846] [2021-11-20 07:45:11,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374421846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:11,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:11,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 07:45:11,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487673349] [2021-11-20 07:45:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:11,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:45:11,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:45:11,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:45:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:11,473 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:11,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:11,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:11,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:11,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:11,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:45:11,724 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1304091911, now seen corresponding path program 1 times [2021-11-20 07:45:11,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:11,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316720287] [2021-11-20 07:45:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:11,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:45:13,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:13,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316720287] [2021-11-20 07:45:13,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316720287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:13,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:45:13,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-20 07:45:13,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534609351] [2021-11-20 07:45:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:13,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 07:45:13,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:13,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 07:45:13,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:45:13,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:13,215 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:13,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:13,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:45:13,824 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:13,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:13,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1735787508, now seen corresponding path program 1 times [2021-11-20 07:45:13,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:13,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748519402] [2021-11-20 07:45:13,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:13,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:45:14,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:14,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748519402] [2021-11-20 07:45:14,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748519402] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:14,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989938649] [2021-11-20 07:45:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:14,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:14,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:14,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:14,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:45:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:14,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:45:14,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 07:45:14,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 07:45:14,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989938649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:45:14,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 07:45:14,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2021-11-20 07:45:14,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186233764] [2021-11-20 07:45:14,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:45:14,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:45:14,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:14,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:45:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:45:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:14,616 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:14,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:14,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:14,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:14,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:14,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:45:14,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:14,906 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:14,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1623765812, now seen corresponding path program 1 times [2021-11-20 07:45:14,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:14,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864745204] [2021-11-20 07:45:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:14,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:15,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:15,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864745204] [2021-11-20 07:45:15,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864745204] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:15,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775261868] [2021-11-20 07:45:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:15,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:15,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:15,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:15,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:45:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:15,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:45:15,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:15,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:45:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:16,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775261868] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:45:16,136 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:45:16,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-11-20 07:45:16,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221580405] [2021-11-20 07:45:16,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:45:16,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 07:45:16,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:16,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 07:45:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:45:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:16,141 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:16,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:16,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:16,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:16,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:16,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:16,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:16,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:45:16,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:45:16,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:16,630 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1028159202, now seen corresponding path program 1 times [2021-11-20 07:45:16,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:16,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881662111] [2021-11-20 07:45:16,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:16,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:16,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:16,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881662111] [2021-11-20 07:45:16,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881662111] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:16,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840253937] [2021-11-20 07:45:16,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:16,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:16,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:16,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:16,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:45:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:16,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 07:45:16,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:17,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:45:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:18,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840253937] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:45:18,065 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:45:18,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-11-20 07:45:18,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980214229] [2021-11-20 07:45:18,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:45:18,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 07:45:18,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:18,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 07:45:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-20 07:45:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:18,068 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:18,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:45:18,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:45:18,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:45:18,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 07:45:18,825 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:18,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:18,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1039401539, now seen corresponding path program 2 times [2021-11-20 07:45:18,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:18,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120189612] [2021-11-20 07:45:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:18,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:45:19,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:19,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120189612] [2021-11-20 07:45:19,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120189612] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:19,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449078011] [2021-11-20 07:45:19,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:45:19,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:19,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:19,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:19,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:45:19,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:45:19,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:45:19,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 07:45:19,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 07:45:20,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:45:21,494 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 07:45:21,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449078011] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:45:21,495 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:45:21,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 22 [2021-11-20 07:45:21,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236324238] [2021-11-20 07:45:21,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:45:21,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-20 07:45:21,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-20 07:45:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-11-20 07:45:21,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:21,498 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:21,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 18.636363636363637) internal successors, (410), 22 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:21,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:45:21,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:22,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:22,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:22,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:22,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:45:22,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:45:22,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:45:22,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-20 07:45:22,396 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:22,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash -857429205, now seen corresponding path program 2 times [2021-11-20 07:45:22,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:22,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273212674] [2021-11-20 07:45:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:22,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:23,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:23,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273212674] [2021-11-20 07:45:23,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273212674] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:23,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240084925] [2021-11-20 07:45:23,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:45:23,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:23,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:23,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:23,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 07:45:23,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:45:23,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:45:23,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-20 07:45:23,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:24,723 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-20 07:45:24,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2021-11-20 07:45:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:24,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:45:25,118 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-20 07:45:25,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2021-11-20 07:45:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:27,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240084925] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:45:27,001 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:45:27,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 42 [2021-11-20 07:45:27,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699572785] [2021-11-20 07:45:27,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:45:27,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-20 07:45:27,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:27,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-20 07:45:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2021-11-20 07:45:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:27,006 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:27,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 10.5) internal successors, (441), 42 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:27,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:27,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:45:27,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:45:27,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:45:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:45:28,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-20 07:45:29,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:45:29,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:29,196 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:29,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1197673415, now seen corresponding path program 3 times [2021-11-20 07:45:29,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:29,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440988970] [2021-11-20 07:45:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:29,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:45:32,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:32,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440988970] [2021-11-20 07:45:32,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440988970] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:32,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544598269] [2021-11-20 07:45:32,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:45:32,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:32,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:32,690 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:32,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 07:45:32,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 07:45:32,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:45:32,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-20 07:45:32,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:33,838 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-20 07:45:33,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-20 07:45:33,929 INFO L388 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 23 treesize of output 7 [2021-11-20 07:45:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:45:34,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:45:34,708 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#t3~0#1.offset| Int) (|ULTIMATE.start_main_#t~pre24#1| Int)) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset| |ULTIMATE.start_main_#t~pre24#1|)) c_~q1~0.base) (+ c_~q1~0.offset (* c_~q1_front~0 4))) 0))) is different from false [2021-11-20 07:45:34,751 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:45:34,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 55 [2021-11-20 07:45:36,046 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:45:36,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544598269] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:45:36,046 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:45:36,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 12, 12] total 59 [2021-11-20 07:45:36,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120386793] [2021-11-20 07:45:36,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:45:36,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-20 07:45:36,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-20 07:45:36,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=3157, Unknown=1, NotChecked=112, Total=3422 [2021-11-20 07:45:36,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:36,051 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:36,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 7.966101694915254) internal successors, (470), 59 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:36,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:36,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:36,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:36,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:36,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:36,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:36,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:45:36,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:45:36,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-20 07:45:36,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:45:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:45:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:45:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-20 07:45:46,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:45:46,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:46,322 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:45:46,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:45:46,322 INFO L85 PathProgramCache]: Analyzing trace with hash -307848099, now seen corresponding path program 4 times [2021-11-20 07:45:46,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:45:46,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551959893] [2021-11-20 07:45:46,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:45:46,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:45:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:45:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:47,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:45:47,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551959893] [2021-11-20 07:45:47,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551959893] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:45:47,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265446197] [2021-11-20 07:45:47,204 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:45:47,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:45:47,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:45:47,206 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:45:47,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 07:45:47,291 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:45:47,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:45:47,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-20 07:45:47,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:45:47,346 INFO L388 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 [2021-11-20 07:45:47,944 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 07:45:47,944 INFO L388 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 [2021-11-20 07:45:49,433 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-11-20 07:45:49,434 INFO L388 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 1 case distinctions, treesize of input 29 treesize of output 28 [2021-11-20 07:45:49,642 INFO L354 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2021-11-20 07:45:49,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-20 07:45:49,978 INFO L388 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 29 treesize of output 13 [2021-11-20 07:45:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:50,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:45:55,307 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:45:55,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243 treesize of output 235 [2021-11-20 07:45:58,701 INFO L388 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 10 treesize of output 8 [2021-11-20 07:45:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:45:58,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265446197] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:45:58,769 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:45:58,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 27, 26] total 69 [2021-11-20 07:45:58,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681556123] [2021-11-20 07:45:58,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:45:58,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-20 07:45:58,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:45:58,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-20 07:45:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=4270, Unknown=1, NotChecked=0, Total=4692 [2021-11-20 07:45:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:58,775 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:45:58,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 6.840579710144928) internal successors, (472), 69 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:45:58,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:45:58,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-20 07:45:58,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:46:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:46:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:46:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-20 07:46:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-20 07:46:04,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-20 07:46:04,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:46:04,943 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:46:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:04,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1072614890, now seen corresponding path program 5 times [2021-11-20 07:46:04,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:04,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448159849] [2021-11-20 07:46:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:04,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 34 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 07:46:05,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:05,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448159849] [2021-11-20 07:46:05,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448159849] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:46:05,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651736761] [2021-11-20 07:46:05,070 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:46:05,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:46:05,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:46:05,071 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:46:05,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 07:46:05,190 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-11-20 07:46:05,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:46:05,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:46:05,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:46:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:46:05,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:46:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:46:06,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651736761] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:46:06,341 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:46:06,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2021-11-20 07:46:06,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591163847] [2021-11-20 07:46:06,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:46:06,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-20 07:46:06,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:06,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-20 07:46:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2021-11-20 07:46:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:06,344 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:46:06,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.321428571428571) internal successors, (289), 28 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:46:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:46:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:46:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:46:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:46:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:46:06,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:46:06,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:46:06,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:46:06,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-20 07:46:06,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-11-20 07:46:06,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:08,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:46:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:46:08,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-20 07:46:09,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:46:09,010 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:46:09,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1211623185, now seen corresponding path program 1 times [2021-11-20 07:46:09,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:09,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796776549] [2021-11-20 07:46:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:09,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:46:11,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:11,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796776549] [2021-11-20 07:46:11,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796776549] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:46:11,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233781307] [2021-11-20 07:46:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:11,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:46:11,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:46:11,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:46:11,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 07:46:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:11,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-20 07:46:11,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:46:17,949 INFO L354 Elim1Store]: treesize reduction 106, result has 6.2 percent of original size [2021-11-20 07:46:17,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 40 [2021-11-20 07:46:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:46:17,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:46:18,813 INFO L354 Elim1Store]: treesize reduction 31, result has 71.6 percent of original size [2021-11-20 07:46:18,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 90 [2021-11-20 07:46:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:46:22,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233781307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:46:22,769 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:46:22,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32, 29] total 91 [2021-11-20 07:46:22,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414172292] [2021-11-20 07:46:22,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:46:22,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2021-11-20 07:46:22,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:46:22,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-11-20 07:46:22,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1017, Invalid=7172, Unknown=1, NotChecked=0, Total=8190 [2021-11-20 07:46:22,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:22,777 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:46:22,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 5.417582417582418) internal successors, (493), 91 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:46:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:46:22,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:46:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:46:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:46:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:46:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:46:22,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:46:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:46:35,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:46:35,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:46:35,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-20 07:46:35,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-20 07:46:35,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-20 07:46:35,884 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:46:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:46:35,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2002385164, now seen corresponding path program 1 times [2021-11-20 07:46:35,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:46:35,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538076581] [2021-11-20 07:46:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:35,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:46:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:46:42,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:46:42,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538076581] [2021-11-20 07:46:42,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538076581] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:46:42,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260443587] [2021-11-20 07:46:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:46:42,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:46:42,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:46:42,119 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:46:42,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 07:46:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:46:42,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-20 07:46:42,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:46:51,954 INFO L354 Elim1Store]: treesize reduction 109, result has 6.0 percent of original size [2021-11-20 07:46:51,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 44 [2021-11-20 07:46:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:46:52,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:46:57,366 INFO L354 Elim1Store]: treesize reduction 27, result has 75.2 percent of original size [2021-11-20 07:46:57,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 124 [2021-11-20 07:47:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:47:13,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260443587] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:47:13,862 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:47:13,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 50, 49] total 146 [2021-11-20 07:47:13,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907478541] [2021-11-20 07:47:13,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:47:13,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2021-11-20 07:47:13,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:47:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2021-11-20 07:47:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1726, Invalid=19444, Unknown=0, NotChecked=0, Total=21170 [2021-11-20 07:47:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:13,871 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:47:13,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 3.835616438356164) internal successors, (560), 146 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:47:13,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-20 07:47:13,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:47:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:47:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:47:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-20 07:47:42,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-20 07:47:42,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-20 07:47:42,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 07:47:42,743 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:47:42,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:47:42,744 INFO L85 PathProgramCache]: Analyzing trace with hash 963683087, now seen corresponding path program 2 times [2021-11-20 07:47:42,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:47:42,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920955158] [2021-11-20 07:47:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:47:42,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:47:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:47:42,976 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-20 07:47:42,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:47:42,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920955158] [2021-11-20 07:47:42,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920955158] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:47:42,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582496533] [2021-11-20 07:47:42,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:47:42,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:47:42,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:47:42,979 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:47:43,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 07:47:43,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:47:43,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:47:43,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 07:47:43,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:47:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-20 07:47:43,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:47:44,645 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-20 07:47:44,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582496533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:47:44,646 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:47:44,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 7] total 21 [2021-11-20 07:47:44,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511027990] [2021-11-20 07:47:44,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:47:44,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-20 07:47:44,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:47:44,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-20 07:47:44,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2021-11-20 07:47:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:44,648 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:47:44,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 21.19047619047619) internal successors, (445), 21 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:47:44,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:44,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:47:44,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:47:44,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:47:44,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:47:44,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:47:44,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-20 07:47:44,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-11-20 07:47:44,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:47:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:47:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:47:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:47:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:47:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:47:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-20 07:47:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-20 07:47:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:47:57,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:47:57,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 07:47:57,362 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:47:57,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:47:57,363 INFO L85 PathProgramCache]: Analyzing trace with hash -875797943, now seen corresponding path program 2 times [2021-11-20 07:47:57,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:47:57,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594356778] [2021-11-20 07:47:57,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:47:57,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:47:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:00,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:00,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594356778] [2021-11-20 07:48:00,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594356778] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:00,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325329757] [2021-11-20 07:48:00,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:48:00,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:00,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:00,153 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:48:00,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 07:48:00,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:48:00,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:48:00,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-20 07:48:00,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:48:01,847 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-20 07:48:01,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2021-11-20 07:48:02,377 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-20 07:48:02,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 23 [2021-11-20 07:48:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:48:02,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:48:02,937 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:48:02,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 54 [2021-11-20 07:48:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:48:05,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325329757] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:48:05,849 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:48:05,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 22, 22] total 75 [2021-11-20 07:48:05,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523831020] [2021-11-20 07:48:05,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:48:05,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-11-20 07:48:05,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:48:05,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-11-20 07:48:05,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=5164, Unknown=0, NotChecked=0, Total=5550 [2021-11-20 07:48:05,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:05,853 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:48:05,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 6.626666666666667) internal successors, (497), 75 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:48:05,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:05,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:48:05,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:48:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:48:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:48:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-20 07:48:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-20 07:48:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:48:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:48:13,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:48:13,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-20 07:48:13,579 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:48:13,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:48:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash 871368446, now seen corresponding path program 3 times [2021-11-20 07:48:13,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:48:13,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042591605] [2021-11-20 07:48:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:48:13,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:48:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:48:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:48:22,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:48:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042591605] [2021-11-20 07:48:22,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042591605] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:48:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120853018] [2021-11-20 07:48:22,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:48:22,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:48:22,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:48:22,016 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:48:22,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-20 07:48:22,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 07:48:22,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:48:22,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-20 07:48:22,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:48:27,440 INFO L354 Elim1Store]: treesize reduction 80, result has 30.4 percent of original size [2021-11-20 07:48:27,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 47 treesize of output 53 [2021-11-20 07:48:28,108 INFO L388 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 23 treesize of output 7 [2021-11-20 07:48:29,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 07:48:29,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:49:15,501 INFO L354 Elim1Store]: treesize reduction 27, result has 75.2 percent of original size [2021-11-20 07:49:15,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 153 [2021-11-20 07:49:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 07:49:29,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120853018] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:49:29,064 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:49:29,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 39, 40] total 130 [2021-11-20 07:49:29,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402615552] [2021-11-20 07:49:29,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:49:29,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2021-11-20 07:49:29,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:49:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2021-11-20 07:49:29,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=16135, Unknown=27, NotChecked=0, Total=16770 [2021-11-20 07:49:29,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:49:29,071 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:49:29,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 4.153846153846154) internal successors, (540), 130 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:49:29,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-20 07:49:29,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-11-20 07:49:29,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:49:29,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:49:29,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:49:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-20 07:49:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-20 07:49:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:49:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-20 07:49:53,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-20 07:49:53,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-20 07:49:53,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 07:49:53,871 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:49:53,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:49:53,871 INFO L85 PathProgramCache]: Analyzing trace with hash 708557529, now seen corresponding path program 4 times [2021-11-20 07:49:53,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:49:53,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58086251] [2021-11-20 07:49:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:49:53,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:49:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:49:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 07:49:54,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:49:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58086251] [2021-11-20 07:49:54,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58086251] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:49:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247359307] [2021-11-20 07:49:54,011 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:49:54,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:49:54,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:49:54,012 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:49:54,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-20 07:49:54,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:49:54,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:49:54,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:49:54,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:49:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 07:49:54,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:49:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 07:49:55,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247359307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:49:55,233 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:49:55,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2021-11-20 07:49:55,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067296689] [2021-11-20 07:49:55,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:49:55,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-20 07:49:55,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:49:55,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-20 07:49:55,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2021-11-20 07:49:55,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:49:55,234 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:49:55,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.535714285714286) internal successors, (295), 28 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:49:55,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-20 07:49:55,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:50:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-11-20 07:50:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 07:50:06,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-20 07:50:07,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-20 07:50:07,070 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:50:07,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:50:07,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1286213210, now seen corresponding path program 5 times [2021-11-20 07:50:07,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:50:07,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190488463] [2021-11-20 07:50:07,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:50:07,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:50:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:50:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-20 07:50:07,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:50:07,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190488463] [2021-11-20 07:50:07,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190488463] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:50:07,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055570438] [2021-11-20 07:50:07,186 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:50:07,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:50:07,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:50:07,188 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:50:07,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-20 07:50:07,318 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-20 07:50:07,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:50:07,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-20 07:50:07,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:50:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 07:50:07,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:50:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 07:50:08,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055570438] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:50:08,598 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:50:08,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 12, 12] total 24 [2021-11-20 07:50:08,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328245338] [2021-11-20 07:50:08,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:50:08,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-20 07:50:08,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:50:08,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-20 07:50:08,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2021-11-20 07:50:08,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:08,601 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:50:08,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.666666666666666) internal successors, (376), 24 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:50:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:50:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:50:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:50:08,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-20 07:50:08,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-11-20 07:50:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-11-20 07:50:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2021-11-20 07:50:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-20 07:50:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:50:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:50:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:50:38,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:50:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:38,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:50:38,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-11-20 07:50:38,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:50:38,249 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:50:38,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:50:38,250 INFO L85 PathProgramCache]: Analyzing trace with hash -826512866, now seen corresponding path program 6 times [2021-11-20 07:50:38,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:50:38,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860294512] [2021-11-20 07:50:38,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:50:38,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:50:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:50:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 07:50:40,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:50:40,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860294512] [2021-11-20 07:50:40,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860294512] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:50:40,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019480877] [2021-11-20 07:50:40,377 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 07:50:40,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:50:40,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:50:40,378 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:50:40,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-20 07:50:40,489 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-11-20 07:50:40,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:50:40,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-20 07:50:40,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:50:41,768 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-20 07:50:41,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-20 07:50:41,882 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-20 07:50:41,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-20 07:50:41,953 INFO L388 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 26 treesize of output 10 [2021-11-20 07:50:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-20 07:50:42,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:50:43,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:50:43,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243 treesize of output 235 [2021-11-20 07:50:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-20 07:50:45,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019480877] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:50:45,129 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:50:45,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 14, 14] total 50 [2021-11-20 07:50:45,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773453173] [2021-11-20 07:50:45,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:50:45,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-20 07:50:45,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:50:45,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-20 07:50:45,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2296, Unknown=1, NotChecked=0, Total=2450 [2021-11-20 07:50:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:45,132 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:50:45,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 9.3) internal successors, (465), 50 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:50:45,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:50:45,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:50:45,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:50:45,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-20 07:50:45,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:50:45,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:45,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:50:45,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:50:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:50:53,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-20 07:50:53,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:50:53,930 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:50:53,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:50:53,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1898727128, now seen corresponding path program 6 times [2021-11-20 07:50:53,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:50:53,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878945175] [2021-11-20 07:50:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:50:53,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:50:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:50:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:50:57,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:50:57,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878945175] [2021-11-20 07:50:57,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878945175] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:50:57,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807122944] [2021-11-20 07:50:57,002 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-20 07:50:57,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:50:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:50:57,003 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:50:57,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-20 07:50:57,143 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-11-20 07:50:57,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:50:57,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-20 07:50:57,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:50:59,054 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-20 07:50:59,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 19 [2021-11-20 07:50:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 07:50:59,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:50:59,600 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-20 07:50:59,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2021-11-20 07:51:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 07:51:02,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807122944] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:51:02,753 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:51:02,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 18, 18] total 82 [2021-11-20 07:51:02,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414149754] [2021-11-20 07:51:02,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:51:02,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-11-20 07:51:02,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:51:02,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-11-20 07:51:02,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=6246, Unknown=0, NotChecked=0, Total=6642 [2021-11-20 07:51:02,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:02,755 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:51:02,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 6.439024390243903) internal successors, (528), 82 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:51:02,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:51:02,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:51:02,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-11-20 07:51:02,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:51:02,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:02,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:51:02,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:51:02,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:51:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:51:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-20 07:51:10,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-20 07:51:10,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:51:10,398 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:51:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:51:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1166854381, now seen corresponding path program 3 times [2021-11-20 07:51:10,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:51:10,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543201306] [2021-11-20 07:51:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:51:10,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:51:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:51:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 07:51:11,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:51:11,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543201306] [2021-11-20 07:51:11,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543201306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:51:11,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115318818] [2021-11-20 07:51:11,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:51:11,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:51:11,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:51:11,086 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:51:11,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-20 07:51:11,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 07:51:11,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:51:11,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 07:51:11,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:51:12,179 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-20 07:51:12,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2021-11-20 07:51:12,249 INFO L388 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 24 treesize of output 8 [2021-11-20 07:51:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-20 07:51:12,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:51:21,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 07:51:21,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 54 [2021-11-20 07:51:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-20 07:51:22,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115318818] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:51:22,079 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:51:22,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 13] total 43 [2021-11-20 07:51:22,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782827008] [2021-11-20 07:51:22,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:51:22,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-20 07:51:22,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:51:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-20 07:51:22,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1684, Unknown=8, NotChecked=0, Total=1806 [2021-11-20 07:51:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:22,081 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:51:22,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 11.372093023255815) internal successors, (489), 43 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:51:22,081 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:51:22,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-11-20 07:51:22,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:51:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:51:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:51:27,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-20 07:51:27,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-20 07:51:27,938 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:51:27,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:51:27,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1103640308, now seen corresponding path program 7 times [2021-11-20 07:51:27,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:51:27,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290930122] [2021-11-20 07:51:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:51:27,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:51:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:51:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-20 07:51:28,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:51:28,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290930122] [2021-11-20 07:51:28,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290930122] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:51:28,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792941203] [2021-11-20 07:51:28,717 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-20 07:51:28,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:51:28,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:51:28,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:51:28,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-20 07:51:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:51:28,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 07:51:28,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:51:30,757 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-11-20 07:51:30,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2021-11-20 07:51:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 41 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-20 07:51:30,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:51:31,049 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-20 07:51:31,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17 [2021-11-20 07:51:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 3 proven. 44 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-20 07:51:33,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792941203] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:51:33,774 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:51:33,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19, 19] total 56 [2021-11-20 07:51:33,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369625780] [2021-11-20 07:51:33,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:51:33,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-20 07:51:33,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:51:33,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-20 07:51:33,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=2712, Unknown=0, NotChecked=0, Total=3080 [2021-11-20 07:51:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:33,776 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:51:33,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 8.660714285714286) internal successors, (485), 56 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:51:33,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:33,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:51:33,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:51:33,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:33,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:51:33,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:51:33,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:51:33,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:51:33,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:51:33,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:51:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:51:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:51:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:51:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:51:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:51:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-20 07:51:36,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-20 07:51:36,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-20 07:51:36,196 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:51:36,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:51:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1732564519, now seen corresponding path program 8 times [2021-11-20 07:51:36,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:51:36,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462988032] [2021-11-20 07:51:36,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:51:36,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:51:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:51:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:51:44,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:51:44,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462988032] [2021-11-20 07:51:44,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462988032] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:51:44,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167836705] [2021-11-20 07:51:44,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:51:44,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:51:44,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:51:44,866 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:51:44,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-20 07:51:45,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:51:45,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:51:45,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 136 conjunts are in the unsatisfiable core [2021-11-20 07:51:45,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:52:02,458 INFO L354 Elim1Store]: treesize reduction 528, result has 2.4 percent of original size [2021-11-20 07:52:02,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 124 treesize of output 68 [2021-11-20 07:52:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:52:04,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:52:17,295 INFO L354 Elim1Store]: treesize reduction 139, result has 73.2 percent of original size [2021-11-20 07:52:17,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 156 treesize of output 450 [2021-11-20 07:53:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:53:08,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167836705] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:53:08,351 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:53:08,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 61, 61] total 183 [2021-11-20 07:53:08,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798189133] [2021-11-20 07:53:08,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:53:08,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 183 states [2021-11-20 07:53:08,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:53:08,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2021-11-20 07:53:08,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2450, Invalid=30856, Unknown=0, NotChecked=0, Total=33306 [2021-11-20 07:53:08,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:53:08,357 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:53:08,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 183 states, 183 states have (on average 3.568306010928962) internal successors, (653), 183 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:53:08,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:53:08,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:53:08,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:53:08,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-20 07:53:08,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:54:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:54:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:54:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:54:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:54:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:54:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:54:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:54:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-20 07:54:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-11-20 07:54:33,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-20 07:54:33,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-20 07:54:33,970 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:54:33,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:54:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash -119882028, now seen corresponding path program 9 times [2021-11-20 07:54:33,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:54:33,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646703119] [2021-11-20 07:54:33,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:54:33,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:54:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:54:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 07:54:34,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:54:34,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646703119] [2021-11-20 07:54:34,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646703119] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:54:34,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205218731] [2021-11-20 07:54:34,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:54:34,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:54:34,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:54:34,134 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:54:34,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-20 07:54:34,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-20 07:54:34,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:54:34,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:54:34,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:54:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 07:54:34,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:54:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-20 07:54:36,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205218731] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:54:36,075 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:54:36,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 9] total 14 [2021-11-20 07:54:36,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492079634] [2021-11-20 07:54:36,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:54:36,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:54:36,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:54:36,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:54:36,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:54:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:54:36,077 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:54:36,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 26.285714285714285) internal successors, (368), 14 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:54:36,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2021-11-20 07:54:36,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:55:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:55:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:55:08,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-11-20 07:55:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:55:08,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-20 07:55:08,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-20 07:55:08,385 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:55:08,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:55:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1987046511, now seen corresponding path program 10 times [2021-11-20 07:55:08,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:55:08,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416964190] [2021-11-20 07:55:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:55:08,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:55:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:55:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-20 07:55:08,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:55:08,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416964190] [2021-11-20 07:55:08,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416964190] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:55:08,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140362612] [2021-11-20 07:55:08,616 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:55:08,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:55:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:55:08,617 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:55:08,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-20 07:55:08,742 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:55:08,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:55:08,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-20 07:55:08,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:55:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 36 proven. 24 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-20 07:55:09,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:55:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-20 07:55:10,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140362612] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:55:10,462 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:55:10,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2021-11-20 07:55:10,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178472349] [2021-11-20 07:55:10,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:55:10,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-20 07:55:10,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:55:10,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-20 07:55:10,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 07:55:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:55:10,465 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-20 07:55:10,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.756756756756756) internal successors, (324), 37 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:55:10,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:55:10,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:55:10,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:55:10,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:55:10,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:55:10,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:55:10,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:55:10,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-20 07:55:10,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2021-11-20 07:55:10,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:55:10,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 07:55:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-11-20 07:55:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:55:13,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 07:55:13,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-11-20 07:55:13,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:55:13,653 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-20 07:55:13,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:55:13,653 INFO L85 PathProgramCache]: Analyzing trace with hash 778268511, now seen corresponding path program 11 times [2021-11-20 07:55:13,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:55:13,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686161465] [2021-11-20 07:55:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:55:13,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:55:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:55:26,221 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:55:26,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:55:26,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686161465] [2021-11-20 07:55:26,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686161465] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:55:26,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313055337] [2021-11-20 07:55:26,221 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:55:26,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:55:26,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 [2021-11-20 07:55:26,222 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:55:26,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34fadd6f-6e6d-4b94-81fa-164903f0c2aa/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-20 07:55:26,428 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-20 07:55:26,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:55:26,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 154 conjunts are in the unsatisfiable core [2021-11-20 07:55:26,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:55:26,535 INFO L388 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 [2021-11-20 07:55:27,810 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 07:55:27,810 INFO L388 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 [2021-11-20 07:55:32,640 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-20 07:55:32,641 INFO L388 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 20 treesize of output 22 [2021-11-20 07:55:42,229 INFO L354 Elim1Store]: treesize reduction 132, result has 29.0 percent of original size [2021-11-20 07:55:42,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 91 [2021-11-20 07:56:33,147 INFO L354 Elim1Store]: treesize reduction 286, result has 23.7 percent of original size [2021-11-20 07:56:33,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 142 [2021-11-20 07:56:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:56:35,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:57:38,708 INFO L354 Elim1Store]: treesize reduction 120, result has 76.8 percent of original size [2021-11-20 07:57:38,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 435 treesize of output 705