./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/indexer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/indexer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA --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 f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:04:21,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:04:21,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:04:21,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:04:21,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:04:21,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:04:21,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:04:21,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:04:21,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:04:21,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:04:21,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:04:21,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:04:21,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:04:21,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:04:21,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:04:21,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:04:21,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:04:21,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:04:21,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:04:21,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:04:21,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:04:21,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:04:21,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:04:21,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:04:21,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:04:21,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:04:21,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:04:21,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:04:21,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:04:21,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:04:21,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:04:21,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:04:21,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:04:21,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:04:21,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:04:21,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:04:21,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:04:21,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:04:21,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:04:21,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:04:21,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:04:21,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-22 23:04:21,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:04:21,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:04:21,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:04:21,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:04:21,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:04:21,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-22 23:04:21,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:04:21,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:04:21,256 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:04:21,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:04:21,257 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:04:21,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:04:21,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:04:21,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:04:21,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:04:21,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:04:21,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:04:21,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:04:21,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:04:21,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:04:21,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:04:21,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:04:21,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:04:21,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-22 23:04:21,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:04:21,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:04:21,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:04:21,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:04:21,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:04:21,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:04:21,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:04:21,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:04:21,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-22 23:04:21,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:04:21,265 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-22 23:04:21,265 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-22 23:04:21,265 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_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2021-11-22 23:04:21,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:04:21,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:04:21,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:04:21,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:04:21,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:04:21,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/../../sv-benchmarks/c/pthread/indexer.i [2021-11-22 23:04:21,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/data/17e1e79f9/3ae90a1cc6174a7b8ef4bbcb68393ab9/FLAGc669ea14c [2021-11-22 23:04:22,209 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:04:22,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/sv-benchmarks/c/pthread/indexer.i [2021-11-22 23:04:22,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/data/17e1e79f9/3ae90a1cc6174a7b8ef4bbcb68393ab9/FLAGc669ea14c [2021-11-22 23:04:22,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/data/17e1e79f9/3ae90a1cc6174a7b8ef4bbcb68393ab9 [2021-11-22 23:04:22,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:04:22,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:04:22,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:04:22,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:04:22,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:04:22,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:04:22" (1/1) ... [2021-11-22 23:04:22,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c82e3df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:22, skipping insertion in model container [2021-11-22 23:04:22,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:04:22" (1/1) ... [2021-11-22 23:04:22,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:04:22,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:04:23,099 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_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/sv-benchmarks/c/pthread/indexer.i[47556,47569] [2021-11-22 23:04:23,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:04:23,213 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:04:23,277 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_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/sv-benchmarks/c/pthread/indexer.i[47556,47569] [2021-11-22 23:04:23,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:04:23,352 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:04:23,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23 WrapperNode [2021-11-22 23:04:23,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:04:23,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:04:23,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:04:23,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:04:23,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,415 INFO L137 Inliner]: procedures = 269, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 114 [2021-11-22 23:04:23,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:04:23,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:04:23,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:04:23,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:04:23,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:04:23,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:04:23,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:04:23,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:04:23,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (1/1) ... [2021-11-22 23:04:23,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:04:23,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:23,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 23:04:23,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 23:04:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:04:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:04:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:04:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2021-11-22 23:04:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2021-11-22 23:04:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:04:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-22 23:04:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:04:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:04:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:04:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:04:23,590 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:04:23,712 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:04:23,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:04:23,978 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:04:23,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:04:23,989 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-22 23:04:23,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:04:23 BoogieIcfgContainer [2021-11-22 23:04:23,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:04:23,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:04:23,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:04:23,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:04:23,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:04:22" (1/3) ... [2021-11-22 23:04:23,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fb16d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:04:23, skipping insertion in model container [2021-11-22 23:04:23,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:04:23" (2/3) ... [2021-11-22 23:04:23,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fb16d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:04:23, skipping insertion in model container [2021-11-22 23:04:23,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:04:23" (3/3) ... [2021-11-22 23:04:24,001 INFO L111 eAbstractionObserver]: Analyzing ICFG indexer.i [2021-11-22 23:04:24,006 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 23:04:24,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:04:24,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 23:04:24,009 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 23:04:24,046 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,046 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,046 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,046 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,047 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,047 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,047 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,048 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,048 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,048 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,048 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,049 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,049 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,049 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,049 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,050 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,050 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,050 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,050 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,051 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,051 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,051 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,051 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,052 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,052 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,052 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,052 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,053 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,053 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,053 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,054 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,054 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,054 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,054 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,055 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,055 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,055 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,055 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,056 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,056 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,056 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,056 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,057 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,057 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,057 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,057 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,058 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,058 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,058 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,058 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,059 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,059 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,059 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,059 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,060 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,060 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,060 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,061 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,061 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,061 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,062 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,062 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,062 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,062 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,062 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,063 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,063 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,063 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,063 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,064 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,064 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,064 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,064 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,064 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,065 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,065 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,065 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,066 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,066 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,066 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,066 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,066 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,067 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,067 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,067 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,067 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,067 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,068 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,068 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,068 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,068 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,069 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,069 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,069 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,069 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,069 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,070 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,070 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,070 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,070 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,071 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,071 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,071 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,071 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,072 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,072 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,072 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,072 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,073 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,073 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,073 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,073 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,074 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,074 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,074 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,074 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,075 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,075 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,076 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,076 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,077 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,077 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,077 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,077 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,078 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,078 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,078 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,078 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,079 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,079 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,079 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,079 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,080 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,080 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,080 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,080 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,081 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,081 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,081 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,081 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,082 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,082 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,082 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,082 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,083 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,083 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,083 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,083 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,084 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,084 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,084 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,084 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,085 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,085 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,085 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,085 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,086 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,086 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,086 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,086 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,087 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,087 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,087 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,088 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,088 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,088 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,088 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,089 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,089 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,089 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,089 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,090 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,090 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,090 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,094 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,094 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,094 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,094 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,095 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,095 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,095 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,095 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,096 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,096 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,096 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,096 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,097 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,097 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,097 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,097 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,098 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,098 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,098 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,098 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,099 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,099 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,099 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,099 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,100 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:04:24,104 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-22 23:04:24,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:04:24,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:24,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:04:24,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-22 23:04:24,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread_routineThread1of1ForFork0 ======== [2021-11-22 23:04:24,230 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 [2021-11-22 23:04:24,231 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:04:24,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:24,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2053267711, now seen corresponding path program 1 times [2021-11-22 23:04:24,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:24,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300496540] [2021-11-22 23:04:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:24,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:04:24,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:24,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300496540] [2021-11-22 23:04:24,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300496540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:24,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:04:24,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 23:04:24,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940748662] [2021-11-22 23:04:24,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:24,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 23:04:24,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:24,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 23:04:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 23:04:24,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:24,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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) [2021-11-22 23:04:24,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:04:24,636 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:24,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash -23941632, now seen corresponding path program 1 times [2021-11-22 23:04:24,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:24,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987668869] [2021-11-22 23:04:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:24,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:04:24,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:24,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987668869] [2021-11-22 23:04:24,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987668869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:24,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:04:24,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:04:24,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641007779] [2021-11-22 23:04:24,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:24,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:04:24,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:24,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:04:24,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:04:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,717 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:24,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-22 23:04:24,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:24,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:24,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:04:24,763 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:24,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2099698045, now seen corresponding path program 1 times [2021-11-22 23:04:24,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:24,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425939988] [2021-11-22 23:04:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:24,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:04:24,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:24,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425939988] [2021-11-22 23:04:24,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425939988] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:24,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985380734] [2021-11-22 23:04:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:24,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:24,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:24,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:24,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 23:04:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:24,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 23:04:25,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:04:25,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:04:25,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985380734] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:25,291 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:25,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-22 23:04:25,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861283039] [2021-11-22 23:04:25,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:25,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:04:25,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:25,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:04:25,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:04:25,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:25,293 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:25,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 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) [2021-11-22 23:04:25,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:25,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:25,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:25,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:25,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:25,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:25,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:25,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:25,627 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 687896739, now seen corresponding path program 2 times [2021-11-22 23:04:25,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:25,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503952468] [2021-11-22 23:04:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:25,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:04:25,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503952468] [2021-11-22 23:04:25,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503952468] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333058460] [2021-11-22 23:04:25,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:04:25,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:25,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:25,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:25,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 23:04:25,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-22 23:04:25,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:04:25,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-22 23:04:25,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:26,012 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 23:04:26,013 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 [2021-11-22 23:04:26,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 23:04:26,342 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-22 23:04:26,483 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 19 treesize of output 11 [2021-11-22 23:04:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-22 23:04:26,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:04:26,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333058460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:26,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:04:26,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2021-11-22 23:04:26,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286424831] [2021-11-22 23:04:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:26,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-22 23:04:26,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-22 23:04:26,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-22 23:04:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:26,911 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:26,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 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) [2021-11-22 23:04:26,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:26,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:26,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:26,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:27,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:27,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:27,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:27,924 INFO L85 PathProgramCache]: Analyzing trace with hash 11182102, now seen corresponding path program 1 times [2021-11-22 23:04:27,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:27,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811513384] [2021-11-22 23:04:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:27,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:28,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:28,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811513384] [2021-11-22 23:04:28,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811513384] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:28,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313894366] [2021-11-22 23:04:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:28,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:28,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:28,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:28,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 23:04:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:28,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:04:28,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:28,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:28,623 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:28,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313894366] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:28,624 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:28,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-22 23:04:28,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608432051] [2021-11-22 23:04:28,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:28,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 23:04:28,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:28,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 23:04:28,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-22 23:04:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:28,626 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:28,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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) [2021-11-22 23:04:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:28,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:28,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:28,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:29,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:29,076 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -989008938, now seen corresponding path program 2 times [2021-11-22 23:04:29,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:29,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814767277] [2021-11-22 23:04:29,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:29,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:29,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814767277] [2021-11-22 23:04:29,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814767277] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460553804] [2021-11-22 23:04:29,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:04:29,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:29,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:29,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 23:04:29,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:04:29,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:04:29,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:04:29,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:29,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:30,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460553804] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:30,121 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:30,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2021-11-22 23:04:30,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944240937] [2021-11-22 23:04:30,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:30,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 23:04:30,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 23:04:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 23:04:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:30,124 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:30,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.411764705882353) internal successors, (150), 34 states have internal predecessors, (150), 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) [2021-11-22 23:04:30,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:30,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:30,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:30,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:30,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:30,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:30,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:30,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:30,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:30,918 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:30,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1714381654, now seen corresponding path program 3 times [2021-11-22 23:04:30,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:30,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354016678] [2021-11-22 23:04:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:30,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 23:04:31,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354016678] [2021-11-22 23:04:31,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354016678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:31,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302074313] [2021-11-22 23:04:31,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:04:31,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:31,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:31,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:31,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 23:04:31,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-22 23:04:31,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:04:31,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-22 23:04:31,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:31,735 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 23:04:31,736 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 [2021-11-22 23:04:32,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 23:04:32,415 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-22 23:04:32,620 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 19 treesize of output 11 [2021-11-22 23:04:33,171 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-11-22 23:04:33,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:51,865 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-22 23:04:51,865 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 13 treesize of output 12 [2021-11-22 23:04:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-11-22 23:04:51,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302074313] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:51,886 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:51,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 17, 17] total 62 [2021-11-22 23:04:51,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711540472] [2021-11-22 23:04:51,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:51,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-22 23:04:51,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:51,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-22 23:04:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=3398, Unknown=3, NotChecked=0, Total=3782 [2021-11-22 23:04:51,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:51,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:51,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 4.629032258064516) internal successors, (287), 62 states have internal predecessors, (287), 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) [2021-11-22 23:04:51,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:51,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:51,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:51,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:51,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:51,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:51,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:04:55,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-22 23:04:55,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-22 23:04:55,667 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash -872839887, now seen corresponding path program 1 times [2021-11-22 23:04:55,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:55,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891249104] [2021-11-22 23:04:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:55,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-11-22 23:04:55,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:55,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891249104] [2021-11-22 23:04:55,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891249104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:04:55,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:04:55,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:04:55,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039422062] [2021-11-22 23:04:55,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:04:55,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:04:55,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:04:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:04:55,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:55,771 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:55,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2021-11-22 23:04:55,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:04:55,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:04:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:04:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:04:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:04:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:04:55,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 23:04:55,891 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:04:55,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:04:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1028246020, now seen corresponding path program 1 times [2021-11-22 23:04:55,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:04:55,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475114312] [2021-11-22 23:04:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:55,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:04:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 110 proven. 1 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2021-11-22 23:04:56,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:04:56,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475114312] [2021-11-22 23:04:56,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475114312] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:04:56,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509335294] [2021-11-22 23:04:56,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:04:56,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:04:56,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:04:56,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:04:56,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 23:04:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:04:56,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-22 23:04:56,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:04:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-22 23:04:57,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:04:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2021-11-22 23:04:58,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509335294] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:04:58,305 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:04:58,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 35, 35] total 70 [2021-11-22 23:04:58,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963380886] [2021-11-22 23:04:58,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:04:58,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-11-22 23:04:58,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:04:58,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-11-22 23:04:58,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=3602, Unknown=0, NotChecked=0, Total=4830 [2021-11-22 23:04:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:58,311 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:04:58,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 4.4) internal successors, (308), 70 states have internal predecessors, (308), 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) [2021-11-22 23:04:58,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:04:58,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:04:58,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:00,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:05:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:05:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:05:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:05:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:05:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:05:00,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:00,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-22 23:05:00,827 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:00,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1797917552, now seen corresponding path program 1 times [2021-11-22 23:05:00,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:00,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663842574] [2021-11-22 23:05:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:00,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2849 backedges. 0 proven. 2673 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-22 23:05:02,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:02,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663842574] [2021-11-22 23:05:02,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663842574] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:02,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933221404] [2021-11-22 23:05:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:02,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:02,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:02,552 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:02,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 23:05:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:02,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-22 23:05:02,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:03,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2849 backedges. 0 proven. 2673 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-22 23:05:03,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2849 backedges. 0 proven. 2673 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-22 23:05:07,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933221404] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:07,110 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:07,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 138 [2021-11-22 23:05:07,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743916735] [2021-11-22 23:05:07,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:07,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2021-11-22 23:05:07,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:07,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2021-11-22 23:05:07,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4830, Invalid=14076, Unknown=0, NotChecked=0, Total=18906 [2021-11-22 23:05:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:07,120 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:07,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 3.0434782608695654) internal successors, (420), 138 states have internal predecessors, (420), 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) [2021-11-22 23:05:07,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:07,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:07,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:07,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:05:07,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:05:07,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:05:07,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:05:07,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:05:07,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:05:07,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:05:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:05:14,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:14,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:14,219 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash -347711600, now seen corresponding path program 2 times [2021-11-22 23:05:14,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:14,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892775014] [2021-11-22 23:05:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:14,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:19,588 INFO L134 CoverageAnalysis]: Checked inductivity of 11298 backedges. 0 proven. 11122 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-22 23:05:19,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:19,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892775014] [2021-11-22 23:05:19,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892775014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:19,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7825066] [2021-11-22 23:05:19,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:05:19,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:19,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:19,597 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:19,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-22 23:05:19,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:05:19,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:05:19,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 136 conjunts are in the unsatisfiable core [2021-11-22 23:05:19,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11298 backedges. 0 proven. 11122 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-22 23:05:20,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:05:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 11298 backedges. 0 proven. 11122 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-22 23:05:32,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7825066] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:05:32,099 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:05:32,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [137, 137, 137] total 259 [2021-11-22 23:05:32,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057432848] [2021-11-22 23:05:32,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:05:32,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2021-11-22 23:05:32,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:05:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2021-11-22 23:05:32,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16899, Invalid=49923, Unknown=0, NotChecked=0, Total=66822 [2021-11-22 23:05:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:32,122 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:05:32,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 259 states, 259 states have (on average 2.799227799227799) internal successors, (725), 259 states have internal predecessors, (725), 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) [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:05:32,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:05:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:05:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:05:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:05:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:05:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:05:56,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-22 23:05:56,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-22 23:05:56,240 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:05:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:05:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1454439085, now seen corresponding path program 3 times [2021-11-22 23:05:56,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:05:56,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593573962] [2021-11-22 23:05:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:05:56,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:05:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:05:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 40944 backedges. 126 proven. 31 refuted. 0 times theorem prover too weak. 40787 trivial. 0 not checked. [2021-11-22 23:05:57,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:05:57,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593573962] [2021-11-22 23:05:57,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593573962] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:05:57,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845424961] [2021-11-22 23:05:57,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:05:57,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:05:57,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:05:57,643 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:05:57,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-22 23:05:58,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-22 23:05:58,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:05:58,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 23:05:58,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:05:58,228 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 23:05:58,228 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 [2021-11-22 23:06:02,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 23:06:02,785 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-22 23:06:02,923 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 19 treesize of output 11 [2021-11-22 23:06:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 40944 backedges. 140 proven. 17 refuted. 0 times theorem prover too weak. 40787 trivial. 0 not checked. [2021-11-22 23:06:03,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:09,534 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#tids~0.offset| Int) (|v_thread_routineThread1of1ForFork0_~w~0#1_44| Int) (|ULTIMATE.start_main_#t~pre10#1| Int) (|v_thread_routineThread1of1ForFork0_#t~pre6#1_55| Int)) (or (= (mod (* |v_thread_routineThread1of1ForFork0_~w~0#1_44| 7) 128) 0) (< |v_thread_routineThread1of1ForFork0_~w~0#1_44| (+ (* 11 |v_thread_routineThread1of1ForFork0_#t~pre6#1_55|) (select (select (store |c_#memory_int| |c_~#tids~0.base| (store (select |c_#memory_int| |c_~#tids~0.base|) (+ |~#tids~0.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |ULTIMATE.start_main_#t~pre10#1|)) |c_ULTIMATE.start_main_~#arg~0#1.base|) |c_ULTIMATE.start_main_~#arg~0#1.offset|))) (<= 0 (* 7 |v_thread_routineThread1of1ForFork0_~w~0#1_44|)) (< |v_thread_routineThread1of1ForFork0_#t~pre6#1_55| 4))) is different from false [2021-11-22 23:06:11,117 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-22 23:06:11,118 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 13 treesize of output 12 [2021-11-22 23:06:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 40944 backedges. 140 proven. 17 refuted. 0 times theorem prover too weak. 40787 trivial. 0 not checked. [2021-11-22 23:06:11,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845424961] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:11,138 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:11,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 48 [2021-11-22 23:06:11,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778439833] [2021-11-22 23:06:11,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:11,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-22 23:06:11,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:11,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-22 23:06:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1970, Unknown=1, NotChecked=90, Total=2256 [2021-11-22 23:06:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:11,142 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:11,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.25) internal successors, (444), 48 states have internal predecessors, (444), 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) [2021-11-22 23:06:11,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:11,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:11,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:11,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-22 23:06:11,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:06:11,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:06:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:06:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:06:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:06:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:06:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-11-22 23:06:27,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:27,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:27,543 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:27,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:27,544 INFO L85 PathProgramCache]: Analyzing trace with hash -499613943, now seen corresponding path program 1 times [2021-11-22 23:06:27,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:27,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454265990] [2021-11-22 23:06:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:27,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2021-11-22 23:06:28,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:28,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454265990] [2021-11-22 23:06:28,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454265990] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:28,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401649854] [2021-11-22 23:06:28,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:28,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:28,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:28,163 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:28,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-22 23:06:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:28,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 23:06:28,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:29,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-22 23:06:29,786 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 15 treesize of output 7 [2021-11-22 23:06:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 40770 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2021-11-22 23:06:29,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 23:06:29,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401649854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:29,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 23:06:29,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 26 [2021-11-22 23:06:29,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88794007] [2021-11-22 23:06:29,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:29,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 23:06:29,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 23:06:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2021-11-22 23:06:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:29,943 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:06:29,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:29,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:29,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:29,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:06:29,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:06:29,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2021-11-22 23:06:29,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:06:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:06:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:06:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:06:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:06:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-11-22 23:06:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:34,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:34,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:34,641 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:06:34,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:34,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1387096759, now seen corresponding path program 2 times [2021-11-22 23:06:34,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:34,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441101977] [2021-11-22 23:06:34,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:34,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 40773 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2021-11-22 23:06:35,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:35,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441101977] [2021-11-22 23:06:35,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441101977] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:35,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261627193] [2021-11-22 23:06:35,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:06:35,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:35,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:35,812 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:35,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-22 23:06:36,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:06:36,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:36,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-22 23:06:36,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:36,153 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 23:06:36,154 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 [2021-11-22 23:06:41,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-22 23:06:41,415 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-11-22 23:06:41,448 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 19 treesize of output 11 [2021-11-22 23:06:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 40773 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 40768 trivial. 0 not checked. [2021-11-22 23:06:41,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:43,359 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thread_routineThread1of1ForFork0_~w~0#1_50| Int) (|v_thread_routineThread1of1ForFork0_#t~pre6#1_64| Int) (|~#tids~0.offset| Int) (|ULTIMATE.start_main_#t~pre10#1| Int)) (or (<= 0 (* 7 |v_thread_routineThread1of1ForFork0_~w~0#1_50|)) (= (mod (* |v_thread_routineThread1of1ForFork0_~w~0#1_50| 7) 128) 0) (< |v_thread_routineThread1of1ForFork0_~w~0#1_50| (+ (select (select (store |c_#memory_int| |c_~#tids~0.base| (store (select |c_#memory_int| |c_~#tids~0.base|) (+ |~#tids~0.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) |ULTIMATE.start_main_#t~pre10#1|)) |c_thread_routineThread1of1ForFork0_~arg#1.base|) |c_thread_routineThread1of1ForFork0_~arg#1.offset|) (* 11 |v_thread_routineThread1of1ForFork0_#t~pre6#1_64|))) (< |v_thread_routineThread1of1ForFork0_#t~pre6#1_64| (+ |c_thread_routineThread1of1ForFork0_~m~0#1| 1)))) is different from false [2021-11-22 23:06:43,444 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 231 treesize of output 223 [2021-11-22 23:06:47,721 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-22 23:06:47,722 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 13 treesize of output 12 [2021-11-22 23:06:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 40773 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40768 trivial. 3 not checked. [2021-11-22 23:06:47,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261627193] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:47,746 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:47,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 47 [2021-11-22 23:06:47,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007484943] [2021-11-22 23:06:47,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:47,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-22 23:06:47,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:47,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-22 23:06:47,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1887, Unknown=1, NotChecked=88, Total=2162 [2021-11-22 23:06:47,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:47,749 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:47,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.3404255319148937) internal successors, (157), 47 states have internal predecessors, (157), 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) [2021-11-22 23:06:47,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:47,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:47,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:47,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:47,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:06:47,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 150 states. [2021-11-22 23:06:47,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:47,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 23:06:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 23:06:48,633 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 23:06:48,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:48,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-22 23:06:48,853 INFO L732 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1] [2021-11-22 23:06:48,853 INFO L308 ceAbstractionStarter]: Result for error location thread_routineThread1of1ForFork0 was SAFE (1/2) [2021-11-22 23:06:48,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:06:48,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:48,856 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:06:48,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-11-22 23:06:48,858 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:06:48,859 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 [2021-11-22 23:06:48,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:06:48,905 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:48,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:48,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1973979282, now seen corresponding path program 1 times [2021-11-22 23:06:48,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:48,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672944369] [2021-11-22 23:06:48,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:48,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:48,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:48,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672944369] [2021-11-22 23:06:48,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672944369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:48,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:06:48,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 23:06:48,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517724743] [2021-11-22 23:06:48,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:48,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 23:06:48,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:48,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 23:06:48,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 23:06:48,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,920 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:48,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-22 23:06:48,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 23:06:48,924 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1129507411, now seen corresponding path program 1 times [2021-11-22 23:06:48,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:48,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466105619] [2021-11-22 23:06:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:48,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466105619] [2021-11-22 23:06:48,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466105619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:06:48,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:06:48,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:06:48,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470985449] [2021-11-22 23:06:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:06:48,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:06:48,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:48,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:06:48,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:06:48,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,943 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:48,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-22 23:06:48,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:48,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 23:06:48,960 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1175273194, now seen corresponding path program 1 times [2021-11-22 23:06:48,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:48,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214240916] [2021-11-22 23:06:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:48,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:48,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:48,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214240916] [2021-11-22 23:06:48,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214240916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:48,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630796620] [2021-11-22 23:06:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:48,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:48,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:48,995 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:49,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-22 23:06:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:49,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 23:06:49,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:49,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:49,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630796620] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:49,220 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:49,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-22 23:06:49,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79050715] [2021-11-22 23:06:49,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:49,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 23:06:49,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 23:06:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-22 23:06:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:49,221 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:49,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 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) [2021-11-22 23:06:49,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:49,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:49,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:49,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:49,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-22 23:06:49,501 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:49,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1677055178, now seen corresponding path program 2 times [2021-11-22 23:06:49,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:49,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818805543] [2021-11-22 23:06:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:49,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:49,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818805543] [2021-11-22 23:06:49,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818805543] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889677701] [2021-11-22 23:06:49,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-22 23:06:49,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:49,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:49,632 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:49,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-22 23:06:49,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-22 23:06:49,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:49,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 23:06:49,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:49,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:49,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889677701] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:49,922 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:49,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-22 23:06:49,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791221605] [2021-11-22 23:06:49,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:49,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-22 23:06:49,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-22 23:06:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-22 23:06:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:49,923 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:49,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.166666666666667) internal successors, (75), 18 states have internal predecessors, (75), 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) [2021-11-22 23:06:49,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:49,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:49,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:49,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:50,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:50,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-22 23:06:50,277 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash 894994294, now seen corresponding path program 3 times [2021-11-22 23:06:50,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:50,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649099804] [2021-11-22 23:06:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:50,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:50,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:50,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649099804] [2021-11-22 23:06:50,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649099804] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:50,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992433573] [2021-11-22 23:06:50,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-22 23:06:50,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:50,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:50,417 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:50,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-22 23:06:50,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-11-22 23:06:50,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:50,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-22 23:06:50,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:50,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:51,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992433573] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:51,024 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:51,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2021-11-22 23:06:51,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331460611] [2021-11-22 23:06:51,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:51,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 23:06:51,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:51,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 23:06:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-11-22 23:06:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:51,026 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:51,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.3823529411764706) internal successors, (115), 34 states have internal predecessors, (115), 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) [2021-11-22 23:06:51,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:51,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:51,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:51,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:51,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:51,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:51,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:51,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1528078346, now seen corresponding path program 4 times [2021-11-22 23:06:51,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:51,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443272967] [2021-11-22 23:06:51,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:51,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:52,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:52,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443272967] [2021-11-22 23:06:52,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443272967] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:52,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968829152] [2021-11-22 23:06:52,116 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-22 23:06:52,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:52,117 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:52,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-22 23:06:52,186 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-22 23:06:52,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:06:52,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-22 23:06:52,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:06:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:52,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:06:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:53,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968829152] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:06:53,269 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:06:53,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2021-11-22 23:06:53,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656125231] [2021-11-22 23:06:53,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:06:53,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-22 23:06:53,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:06:53,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-22 23:06:53,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2021-11-22 23:06:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:53,271 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:06:53,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.9545454545454546) internal successors, (195), 66 states have internal predecessors, (195), 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) [2021-11-22 23:06:53,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:53,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:53,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:53,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:53,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:53,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:06:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:06:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:06:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:06:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:06:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:06:54,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-22 23:06:55,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:55,019 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:06:55,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:06:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash 665424118, now seen corresponding path program 5 times [2021-11-22 23:06:55,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:06:55,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800171080] [2021-11-22 23:06:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:06:55,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:06:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:06:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:06:56,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:06:56,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800171080] [2021-11-22 23:06:56,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800171080] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:06:56,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86026141] [2021-11-22 23:06:56,280 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-22 23:06:56,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:06:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:06:56,287 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:06:56,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-22 23:07:00,785 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2021-11-22 23:07:00,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-22 23:07:00,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-22 23:07:00,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:07:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:07:01,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 23:07:04,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:07:04,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86026141] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 23:07:04,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 23:07:04,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2021-11-22 23:07:04,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858160090] [2021-11-22 23:07:04,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 23:07:04,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2021-11-22 23:07:04,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:07:04,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2021-11-22 23:07:04,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2021-11-22 23:07:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:04,367 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:07:04,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.730769230769231) internal successors, (355), 130 states have internal predecessors, (355), 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) [2021-11-22 23:07:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:04,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:07:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:07:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:07:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:04,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:07:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:07:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 23:07:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 23:07:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-22 23:07:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-22 23:07:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2021-11-22 23:07:10,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-22 23:07:10,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-22 23:07:10,581 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-22 23:07:10,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:07:10,581 INFO L85 PathProgramCache]: Analyzing trace with hash -108530954, now seen corresponding path program 6 times [2021-11-22 23:07:10,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:07:10,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948314945] [2021-11-22 23:07:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:07:10,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:07:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:07:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9834 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-22 23:07:15,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:07:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948314945] [2021-11-22 23:07:15,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948314945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 23:07:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52127303] [2021-11-22 23:07:15,195 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-22 23:07:15,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 23:07:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:07:15,196 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 23:07:15,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cd44867-f3fc-4cfe-91a4-a6af76d654c8/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process