./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/triangular-longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf --witnessprinter.witness.filename witness --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 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 17:18:39,309 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 17:18:39,433 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-21 17:18:39,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 17:18:39,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 17:18:39,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 17:18:39,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 17:18:39,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 17:18:39,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 17:18:39,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 17:18:39,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 17:18:39,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 17:18:39,525 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 17:18:39,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 17:18:39,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 17:18:39,528 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 17:18:39,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 17:18:39,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 17:18:39,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 17:18:39,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 17:18:39,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 17:18:39,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 17:18:39,531 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 17:18:39,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 17:18:39,534 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 17:18:39,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 17:18:39,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 17:18:39,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 17:18:39,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 17:18:39,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:18:39,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 17:18:39,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 17:18:39,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 17:18:39,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 17:18:39,547 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 17:18:39,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 17:18:39,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 17:18:39,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 17:18:39,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 17:18:39,549 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 17:18:39,549 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 17:18:39,549 INFO L153 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_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81809963fcaff21fd6241cde97e522447f695a8b323a0a16c5a31b7f82b0f683 [2023-11-21 17:18:39,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 17:18:39,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 17:18:39,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 17:18:39,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 17:18:39,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 17:18:39,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/../../sv-benchmarks/c/pthread/triangular-longest-1.i [2023-11-21 17:18:43,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 17:18:43,595 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 17:18:43,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/sv-benchmarks/c/pthread/triangular-longest-1.i [2023-11-21 17:18:43,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/data/05433ef18/4f963ac7a2ac4162ba75c28f24ca78f3/FLAGd3996c7f4 [2023-11-21 17:18:43,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/data/05433ef18/4f963ac7a2ac4162ba75c28f24ca78f3 [2023-11-21 17:18:43,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 17:18:43,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 17:18:43,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 17:18:43,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 17:18:43,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 17:18:43,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:18:43" (1/1) ... [2023-11-21 17:18:43,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aecf761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:43, skipping insertion in model container [2023-11-21 17:18:43,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:18:43" (1/1) ... [2023-11-21 17:18:43,741 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 17:18:44,144 WARN L240 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_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/sv-benchmarks/c/pthread/triangular-longest-1.i[30962,30975] [2023-11-21 17:18:44,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:18:44,165 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 17:18:44,213 WARN L240 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_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/sv-benchmarks/c/pthread/triangular-longest-1.i[30962,30975] [2023-11-21 17:18:44,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:18:44,262 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:18:44,262 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:18:44,271 INFO L206 MainTranslator]: Completed translation [2023-11-21 17:18:44,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44 WrapperNode [2023-11-21 17:18:44,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 17:18:44,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 17:18:44,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 17:18:44,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 17:18:44,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,336 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-21 17:18:44,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 17:18:44,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 17:18:44,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 17:18:44,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 17:18:44,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 17:18:44,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 17:18:44,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 17:18:44,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 17:18:44,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (1/1) ... [2023-11-21 17:18:44,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:18:44,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:44,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 17:18:44,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 17:18:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-21 17:18:44,554 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-21 17:18:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-21 17:18:44,554 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-21 17:18:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 17:18:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 17:18:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 17:18:44,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 17:18:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 17:18:44,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 17:18:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 17:18:44,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 17:18:44,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 17:18:44,561 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 17:18:44,752 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 17:18:44,754 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 17:18:44,947 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 17:18:45,100 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 17:18:45,111 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 17:18:45,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:45 BoogieIcfgContainer [2023-11-21 17:18:45,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 17:18:45,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 17:18:45,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 17:18:45,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 17:18:45,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:18:43" (1/3) ... [2023-11-21 17:18:45,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad540b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:18:45, skipping insertion in model container [2023-11-21 17:18:45,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:44" (2/3) ... [2023-11-21 17:18:45,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad540b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:18:45, skipping insertion in model container [2023-11-21 17:18:45,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:45" (3/3) ... [2023-11-21 17:18:45,128 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longest-1.i [2023-11-21 17:18:45,137 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 17:18:45,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 17:18:45,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 17:18:45,148 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 17:18:45,188 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 17:18:45,239 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 17:18:45,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 17:18:45,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:45,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 17:18:45,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-21 17:18:45,286 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 17:18:45,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-21 17:18:45,307 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cdce224, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 17:18:45,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 17:18:45,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:45,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:45,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1170894247, now seen corresponding path program 1 times [2023-11-21 17:18:45,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:45,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260663718] [2023-11-21 17:18:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:45,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:46,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:46,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260663718] [2023-11-21 17:18:46,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260663718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:46,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:46,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 17:18:46,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560821250] [2023-11-21 17:18:46,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:46,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 17:18:46,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:46,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 17:18:46,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 17:18:46,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:46,177 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:46,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-21 17:18:46,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:46,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 17:18:46,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:46,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:46,453 INFO L85 PathProgramCache]: Analyzing trace with hash 348194946, now seen corresponding path program 1 times [2023-11-21 17:18:46,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:46,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014085847] [2023-11-21 17:18:46,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:46,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:46,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014085847] [2023-11-21 17:18:46,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014085847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:46,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:18:46,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 17:18:46,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217289603] [2023-11-21 17:18:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:46,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 17:18:46,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:46,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 17:18:46,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 17:18:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:46,835 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:46,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-11-21 17:18:46,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:46,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:47,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:47,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 17:18:47,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:47,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash 332452637, now seen corresponding path program 2 times [2023-11-21 17:18:47,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:47,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138549152] [2023-11-21 17:18:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:47,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:47,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:47,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138549152] [2023-11-21 17:18:47,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138549152] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:47,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117710685] [2023-11-21 17:18:47,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 17:18:47,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:47,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:47,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 17:18:47,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 17:18:47,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:47,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 17:18:47,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:47,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:48,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117710685] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:48,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:48,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-11-21 17:18:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370546492] [2023-11-21 17:18:48,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:48,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-21 17:18:48,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:48,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-21 17:18:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-21 17:18:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:48,019 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:48,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:48,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:48,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:48,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:48,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:48,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:48,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:18:48,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:48,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-21 17:18:48,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:48,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:48,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1687735954, now seen corresponding path program 3 times [2023-11-21 17:18:48,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:48,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17398654] [2023-11-21 17:18:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:48,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:49,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:49,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17398654] [2023-11-21 17:18:49,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17398654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247559679] [2023-11-21 17:18:49,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 17:18:49,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:49,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:49,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 17:18:49,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-21 17:18:49,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:49,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 17:18:49,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:49,385 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:49,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:49,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247559679] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:49,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:49,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2023-11-21 17:18:49,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071613233] [2023-11-21 17:18:49,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:49,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-21 17:18:49,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:49,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-21 17:18:49,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2023-11-21 17:18:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:49,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:49,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.142857142857143) internal successors, (88), 27 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:49,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:49,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:49,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:18:49,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:18:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 17:18:50,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:50,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:50,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:50,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:50,929 INFO L85 PathProgramCache]: Analyzing trace with hash 413419344, now seen corresponding path program 4 times [2023-11-21 17:18:50,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:50,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571251758] [2023-11-21 17:18:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:50,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:51,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:51,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571251758] [2023-11-21 17:18:51,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571251758] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:51,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603607757] [2023-11-21 17:18:51,853 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-21 17:18:51,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:51,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:51,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:51,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 17:18:51,967 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-21 17:18:51,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:51,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-21 17:18:51,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:52,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:53,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603607757] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:53,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:53,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 46 [2023-11-21 17:18:53,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156063129] [2023-11-21 17:18:53,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:53,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-21 17:18:53,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:53,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-21 17:18:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=1668, Unknown=0, NotChecked=0, Total=2162 [2023-11-21 17:18:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:53,265 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:53,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.1702127659574466) internal successors, (149), 46 states have internal predecessors, (149), 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) [2023-11-21 17:18:53,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:53,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:53,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:18:53,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 17:18:53,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:18:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-21 17:18:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-21 17:18:55,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:55,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:55,240 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:55,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:55,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1972219166, now seen corresponding path program 5 times [2023-11-21 17:18:55,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:55,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605462151] [2023-11-21 17:18:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1202 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:56,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:56,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605462151] [2023-11-21 17:18:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605462151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677402438] [2023-11-21 17:18:56,080 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-21 17:18:56,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:56,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:56,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:56,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 17:18:56,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2023-11-21 17:18:56,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:56,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 17:18:56,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1260 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:56,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 17:18:56,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677402438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:18:56,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 17:18:56,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 24 [2023-11-21 17:18:56,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706796406] [2023-11-21 17:18:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:18:56,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-21 17:18:56,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-21 17:18:56,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=296, Unknown=0, NotChecked=0, Total=552 [2023-11-21 17:18:56,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:56,439 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:56,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 23 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 17:18:56,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:56,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:56,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:18:56,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-21 17:18:56,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-11-21 17:18:56,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:18:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:18:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:18:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:18:58,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 17:18:58,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:58,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:18:58,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:18:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1955069266, now seen corresponding path program 6 times [2023-11-21 17:18:58,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:18:58,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638303930] [2023-11-21 17:18:58,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:18:58,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:18:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:18:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:58,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:18:58,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638303930] [2023-11-21 17:18:58,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638303930] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:18:58,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111509065] [2023-11-21 17:18:58,732 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-21 17:18:58,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:18:58,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:18:58,736 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:18:58,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 17:18:58,817 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-11-21 17:18:58,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:18:58,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 17:18:58,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:18:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:58,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:18:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:18:58,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111509065] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:18:58,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:18:58,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-11-21 17:18:58,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414699957] [2023-11-21 17:18:58,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:18:58,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 17:18:58,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:18:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 17:18:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-21 17:18:58,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:18:58,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:18:58,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 states have internal predecessors, (37), 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) [2023-11-21 17:18:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:18:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:18:58,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:18:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:18:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:18:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:18:58,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:00,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:00,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:00,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 17:19:00,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:19:00,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:19:00,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:19:00,353 INFO L85 PathProgramCache]: Analyzing trace with hash 667198397, now seen corresponding path program 7 times [2023-11-21 17:19:00,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:19:00,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069716168] [2023-11-21 17:19:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:19:00,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:19:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:19:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:00,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:19:00,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069716168] [2023-11-21 17:19:00,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069716168] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:19:00,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058583760] [2023-11-21 17:19:00,610 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-21 17:19:00,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:19:00,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:19:00,612 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:19:00,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 17:19:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:19:00,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 17:19:00,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:19:00,784 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:00,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:19:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:01,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058583760] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:19:01,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:19:01,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-11-21 17:19:01,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294820564] [2023-11-21 17:19:01,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:19:01,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-21 17:19:01,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:19:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-21 17:19:01,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2023-11-21 17:19:01,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:01,021 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:19:01,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 24 states have internal predecessors, (73), 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) [2023-11-21 17:19:01,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:01,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:01,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:01,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:01,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:03,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 17:19:03,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 17:19:03,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:19:03,638 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:19:03,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:19:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash 380388507, now seen corresponding path program 8 times [2023-11-21 17:19:03,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:19:03,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502949334] [2023-11-21 17:19:03,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:19:03,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:19:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:19:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:04,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:19:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502949334] [2023-11-21 17:19:04,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502949334] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:19:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350054178] [2023-11-21 17:19:04,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 17:19:04,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:19:04,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:19:04,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:19:04,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 17:19:04,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 17:19:04,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:19:04,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-21 17:19:04,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:19:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:04,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:19:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:05,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350054178] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:19:05,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:19:05,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2023-11-21 17:19:05,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628661049] [2023-11-21 17:19:05,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:19:05,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-21 17:19:05,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:19:05,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-21 17:19:05,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=1803, Unknown=0, NotChecked=0, Total=2352 [2023-11-21 17:19:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:05,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:19:05,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 48 states have internal predecessors, (145), 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) [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-11-21 17:19:05,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 17:19:10,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-11-21 17:19:10,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 17:19:10,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:19:10,886 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:19:10,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:19:10,887 INFO L85 PathProgramCache]: Analyzing trace with hash 760545254, now seen corresponding path program 9 times [2023-11-21 17:19:10,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:19:10,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594251934] [2023-11-21 17:19:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:19:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:19:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:19:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 1102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:12,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:19:12,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594251934] [2023-11-21 17:19:12,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594251934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:19:12,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896646223] [2023-11-21 17:19:12,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 17:19:12,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:19:12,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 [2023-11-21 17:19:12,560 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:19:12,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 17:19:12,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2023-11-21 17:19:12,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:19:12,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-21 17:19:12,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:19:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 1102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:13,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:19:14,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 1102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:19:14,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896646223] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:19:14,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:19:14,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 86 [2023-11-21 17:19:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356160632] [2023-11-21 17:19:14,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:19:14,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2023-11-21 17:19:14,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:19:14,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2023-11-21 17:19:14,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1740, Invalid=5742, Unknown=0, NotChecked=0, Total=7482 [2023-11-21 17:19:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:14,360 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:19:14,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 2.954022988505747) internal successors, (257), 86 states have internal predecessors, (257), 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) [2023-11-21 17:19:14,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:14,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:14,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:14,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:14,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:14,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:14,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:14,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-11-21 17:19:14,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-11-21 17:19:14,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:19:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:19:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:19:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-21 17:19:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-21 17:19:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 17:19:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 17:19:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 17:19:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-11-21 17:19:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-11-21 17:19:20,761 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-21 17:19:20,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-21 17:19:20,762 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-21 17:19:20,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 17:19:20,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 17:19:20,992 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1] [2023-11-21 17:19:20,995 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 17:19:20,995 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 17:19:20,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:19:20 BasicIcfg [2023-11-21 17:19:20,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 17:19:20,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 17:19:20,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 17:19:21,000 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 17:19:21,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:45" (3/4) ... [2023-11-21 17:19:21,002 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 17:19:21,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2023-11-21 17:19:21,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2023-11-21 17:19:21,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-21 17:19:21,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-21 17:19:21,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 17:19:21,010 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 17:19:21,082 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/witness.graphml [2023-11-21 17:19:21,082 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/witness.yml [2023-11-21 17:19:21,082 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 17:19:21,083 INFO L158 Benchmark]: Toolchain (without parser) took 37420.61ms. Allocated memory was 176.2MB in the beginning and 853.5MB in the end (delta: 677.4MB). Free memory was 145.7MB in the beginning and 471.8MB in the end (delta: -326.1MB). Peak memory consumption was 351.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,084 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 97.2MB in the beginning and 97.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 17:19:21,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.60ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 126.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.46ms. Allocated memory is still 176.2MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,085 INFO L158 Benchmark]: Boogie Preprocessor took 121.90ms. Allocated memory is still 176.2MB. Free memory was 123.9MB in the beginning and 143.8MB in the end (delta: -19.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,085 INFO L158 Benchmark]: RCFGBuilder took 654.90ms. Allocated memory is still 176.2MB. Free memory was 143.8MB in the beginning and 123.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,086 INFO L158 Benchmark]: TraceAbstraction took 35881.46ms. Allocated memory was 176.2MB in the beginning and 853.5MB in the end (delta: 677.4MB). Free memory was 123.0MB in the beginning and 476.0MB in the end (delta: -353.0MB). Peak memory consumption was 327.1MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,086 INFO L158 Benchmark]: Witness Printer took 83.45ms. Allocated memory is still 853.5MB. Free memory was 476.0MB in the beginning and 471.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 17:19:21,089 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 97.2MB in the beginning and 97.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.60ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 126.0MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.46ms. Allocated memory is still 176.2MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.90ms. Allocated memory is still 176.2MB. Free memory was 123.9MB in the beginning and 143.8MB in the end (delta: -19.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.90ms. Allocated memory is still 176.2MB. Free memory was 143.8MB in the beginning and 123.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35881.46ms. Allocated memory was 176.2MB in the beginning and 853.5MB in the end (delta: 677.4MB). Free memory was 123.0MB in the beginning and 476.0MB in the end (delta: -353.0MB). Peak memory consumption was 327.1MB. Max. memory is 16.1GB. * Witness Printer took 83.45ms. Allocated memory is still 853.5MB. Free memory was 476.0MB in the beginning and 471.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 453123, independent: 375776, independent conditional: 375524, independent unconditional: 252, dependent: 77347, dependent conditional: 77340, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 386635, independent: 375776, independent conditional: 375524, independent unconditional: 252, dependent: 10859, dependent conditional: 10852, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 386635, independent: 375776, independent conditional: 375524, independent unconditional: 252, dependent: 10859, dependent conditional: 10852, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 469875, independent: 375776, independent conditional: 27683, independent unconditional: 348093, dependent: 94099, dependent conditional: 55557, dependent unconditional: 38542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 469875, independent: 375776, independent conditional: 27683, independent unconditional: 348093, dependent: 94099, dependent conditional: 40095, dependent unconditional: 54004, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 469875, independent: 375776, independent conditional: 27683, independent unconditional: 348093, dependent: 94099, dependent conditional: 40095, dependent unconditional: 54004, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1063, independent: 478, independent conditional: 254, independent unconditional: 224, dependent: 585, dependent conditional: 578, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1063, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 840, dependent conditional: 0, dependent unconditional: 840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 840, independent: 255, independent conditional: 254, independent unconditional: 1, dependent: 585, dependent conditional: 578, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 840, independent: 255, independent conditional: 254, independent unconditional: 1, dependent: 585, dependent conditional: 578, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1725, independent: 696, independent conditional: 662, independent unconditional: 34, dependent: 1028, dependent conditional: 974, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 469875, independent: 375298, independent conditional: 27429, independent unconditional: 347869, dependent: 93514, dependent conditional: 39517, dependent unconditional: 53997, unknown: 1063, unknown conditional: 832, unknown unconditional: 231] , Statistics on independence cache: Total cache size (in pairs): 1063, Positive cache size: 478, Positive conditional cache size: 254, Positive unconditional cache size: 224, Negative cache size: 585, Negative conditional cache size: 578, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 15462, Maximal queried relation: 10, Independence queries for same thread: 66488 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 79, Number of trivial persistent sets: 52, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 259, independent: 252, independent conditional: 0, independent unconditional: 252, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 453123, independent: 375776, independent conditional: 375524, independent unconditional: 252, dependent: 77347, dependent conditional: 77340, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 386635, independent: 375776, independent conditional: 375524, independent unconditional: 252, dependent: 10859, dependent conditional: 10852, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 386635, independent: 375776, independent conditional: 375524, independent unconditional: 252, dependent: 10859, dependent conditional: 10852, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 469875, independent: 375776, independent conditional: 27683, independent unconditional: 348093, dependent: 94099, dependent conditional: 55557, dependent unconditional: 38542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 469875, independent: 375776, independent conditional: 27683, independent unconditional: 348093, dependent: 94099, dependent conditional: 40095, dependent unconditional: 54004, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 469875, independent: 375776, independent conditional: 27683, independent unconditional: 348093, dependent: 94099, dependent conditional: 40095, dependent unconditional: 54004, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1063, independent: 478, independent conditional: 254, independent unconditional: 224, dependent: 585, dependent conditional: 578, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1063, independent: 223, independent conditional: 0, independent unconditional: 223, dependent: 840, dependent conditional: 0, dependent unconditional: 840, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 840, independent: 255, independent conditional: 254, independent unconditional: 1, dependent: 585, dependent conditional: 578, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 840, independent: 255, independent conditional: 254, independent unconditional: 1, dependent: 585, dependent conditional: 578, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1725, independent: 696, independent conditional: 662, independent unconditional: 34, dependent: 1028, dependent conditional: 974, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 469875, independent: 375298, independent conditional: 27429, independent unconditional: 347869, dependent: 93514, dependent conditional: 39517, dependent unconditional: 53997, unknown: 1063, unknown conditional: 832, unknown unconditional: 231] , Statistics on independence cache: Total cache size (in pairs): 1063, Positive cache size: 478, Positive conditional cache size: 254, Positive unconditional cache size: 224, Negative cache size: 585, Negative conditional cache size: 578, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 15462, Maximal queried relation: 10, Independence queries for same thread: 66488 - PositiveResult [Line: 722]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 35.7s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 20.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 349, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 1100 NumberOfCodeBlocks, 1100 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 1474 ConstructedInterpolants, 0 QuantifiedInterpolants, 6204 SizeOfPredicates, 119 NumberOfNonLiveVariables, 1577 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 2462/8022 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 17:19:21,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 17:19:21,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea2eb66e-4428-4add-a17c-b7c213ea3b4d/bin/ugemcutter-verify-n4DOmGwLwf/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE