./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx --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 3c66e95d4d33d89eed9ab2f285249dafeef639a3ca9f6d879b87b944d1b8c0ce --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:18:04,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:18:05,045 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-12-02 20:18:05,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:18:05,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:18:05,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:18:05,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:18:05,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:18:05,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:18:05,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:18:05,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:18:05,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:18:05,079 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:18:05,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:18:05,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:18:05,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:18:05,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:18:05,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:18:05,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:18:05,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:18:05,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:18:05,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:18:05,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:18:05,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:18:05,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:18:05,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:18:05,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:18:05,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:18:05,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:18:05,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:18:05,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:18:05,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:18:05,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:18:05,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-02 20:18:05,089 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-12-02 20:18:05,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:18:05,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:18:05,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:18:05,090 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:18:05,090 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:18:05,090 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:18:05,091 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_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c66e95d4d33d89eed9ab2f285249dafeef639a3ca9f6d879b87b944d1b8c0ce [2023-12-02 20:18:05,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:18:05,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:18:05,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:18:05,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:18:05,349 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:18:05,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2023-12-02 20:18:08,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:18:08,222 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:18:08,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2023-12-02 20:18:08,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/data/38e903b6d/2a95e49086014cc1b599d392a008d84d/FLAG7aec1bdd1 [2023-12-02 20:18:08,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/data/38e903b6d/2a95e49086014cc1b599d392a008d84d [2023-12-02 20:18:08,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:18:08,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:18:08,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:18:08,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:18:08,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:18:08,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581293e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08, skipping insertion in model container [2023-12-02 20:18:08,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:18:08,406 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_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c[2113,2126] [2023-12-02 20:18:08,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:18:08,420 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:18:08,441 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_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c[2113,2126] [2023-12-02 20:18:08,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:18:08,450 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:18:08,450 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:18:08,457 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:18:08,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08 WrapperNode [2023-12-02 20:18:08,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:18:08,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:18:08,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:18:08,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:18:08,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,486 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 79 [2023-12-02 20:18:08,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:18:08,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:18:08,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:18:08,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:18:08,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:18:08,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:18:08,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:18:08,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:18:08,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (1/1) ... [2023-12-02 20:18:08,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:18:08,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:08,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:18:08,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:18:08,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:18:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 20:18:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 20:18:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-02 20:18:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-02 20:18:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:18:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:18:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:18:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 20:18:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 20:18:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:18:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:18:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:18:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:18:08,567 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 20:18:08,670 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:18:08,672 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:18:08,832 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:18:08,958 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:18:08,959 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 20:18:08,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:08 BoogieIcfgContainer [2023-12-02 20:18:08,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:18:08,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:18:08,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:18:08,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:18:08,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:18:08" (1/3) ... [2023-12-02 20:18:08,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d206242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:18:08, skipping insertion in model container [2023-12-02 20:18:08,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:18:08" (2/3) ... [2023-12-02 20:18:08,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d206242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:18:08, skipping insertion in model container [2023-12-02 20:18:08,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:08" (3/3) ... [2023-12-02 20:18:08,968 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure1-alt.wvr.c [2023-12-02 20:18:08,976 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 20:18:08,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:18:08,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 20:18:08,984 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 20:18:09,019 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 20:18:09,060 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:18:09,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-12-02 20:18:09,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:09,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-12-02 20:18:09,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-12-02 20:18:09,090 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-12-02 20:18:09,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-12-02 20:18:09,110 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;@1380c16c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:18:09,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-02 20:18:09,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:09,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1234642328, now seen corresponding path program 1 times [2023-12-02 20:18:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127381211] [2023-12-02 20:18:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:09,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:09,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127381211] [2023-12-02 20:18:09,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127381211] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:09,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595620882] [2023-12-02 20:18:09,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:09,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:09,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:09,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:09,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 20:18:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:10,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 20:18:10,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:10,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:10,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595620882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:10,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:10,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-12-02 20:18:10,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209272619] [2023-12-02 20:18:10,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:10,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-02 20:18:10,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:10,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-02 20:18:10,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-12-02 20:18:10,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:10,712 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:10,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.8) internal successors, (45), 24 states have internal predecessors, (45), 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) [2023-12-02 20:18:10,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-02 20:18:11,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 20:18:12,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:12,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:12,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:12,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1187557736, now seen corresponding path program 1 times [2023-12-02 20:18:12,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:12,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652022722] [2023-12-02 20:18:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:12,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:12,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:12,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652022722] [2023-12-02 20:18:12,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652022722] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:12,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128993301] [2023-12-02 20:18:12,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:12,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:12,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:12,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:12,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 20:18:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:12,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 20:18:12,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:13,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:18:13,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128993301] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:13,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:13,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 14] total 39 [2023-12-02 20:18:13,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431819147] [2023-12-02 20:18:13,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:13,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-02 20:18:13,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:13,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-02 20:18:13,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1384, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 20:18:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:13,389 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:13,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.6) internal successors, (64), 39 states have internal predecessors, (64), 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) [2023-12-02 20:18:13,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-12-02 20:18:13,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-02 20:18:16,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:18:16,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:16,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:16,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2035302281, now seen corresponding path program 2 times [2023-12-02 20:18:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:16,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785852191] [2023-12-02 20:18:16,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:16,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 20:18:17,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:17,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785852191] [2023-12-02 20:18:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785852191] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:17,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635781019] [2023-12-02 20:18:17,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:18:17,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:17,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:17,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:17,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:18:17,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:18:17,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:18:17,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-02 20:18:17,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:18,034 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:18,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 42 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-02 20:18:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635781019] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:18,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:18,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 27, 15] total 56 [2023-12-02 20:18:18,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761022737] [2023-12-02 20:18:18,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:18,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-02 20:18:18,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:18,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-02 20:18:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=2914, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 20:18:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:18,446 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:18,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 1.736842105263158) internal successors, (99), 56 states have internal predecessors, (99), 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) [2023-12-02 20:18:18,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:18,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2023-12-02 20:18:18,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-02 20:18:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:21,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:18:21,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:21,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:21,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash -651851954, now seen corresponding path program 3 times [2023-12-02 20:18:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:21,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550097349] [2023-12-02 20:18:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:21,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 1 proven. 164 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 20:18:22,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:22,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550097349] [2023-12-02 20:18:22,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550097349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:22,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976643873] [2023-12-02 20:18:22,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:18:22,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:22,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:22,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:22,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 20:18:22,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-12-02 20:18:22,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:18:22,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-02 20:18:22,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:23,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 4 proven. 147 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-02 20:18:25,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976643873] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:25,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:25,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 38, 24] total 82 [2023-12-02 20:18:25,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668264780] [2023-12-02 20:18:25,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:25,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-12-02 20:18:25,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-12-02 20:18:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1101, Invalid=5705, Unknown=0, NotChecked=0, Total=6806 [2023-12-02 20:18:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:25,291 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:25,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 1.7590361445783131) internal successors, (146), 82 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:18:25,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:25,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2023-12-02 20:18:25,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:25,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-02 20:18:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:29,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 20:18:29,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:29,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:29,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:29,849 INFO L85 PathProgramCache]: Analyzing trace with hash 691729976, now seen corresponding path program 4 times [2023-12-02 20:18:29,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:29,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271219897] [2023-12-02 20:18:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:29,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 13 proven. 343 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 20:18:30,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:30,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271219897] [2023-12-02 20:18:30,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271219897] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:30,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648369986] [2023-12-02 20:18:30,881 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 20:18:30,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:30,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:30,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:30,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 20:18:30,963 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 20:18:30,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:18:30,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 105 conjunts are in the unsatisfiable core [2023-12-02 20:18:30,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:32,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 6 proven. 169 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-12-02 20:18:33,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648369986] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:33,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:33,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 53, 16] total 88 [2023-12-02 20:18:33,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402699338] [2023-12-02 20:18:33,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:33,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2023-12-02 20:18:33,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:33,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2023-12-02 20:18:33,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=7314, Unknown=0, NotChecked=0, Total=7832 [2023-12-02 20:18:33,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:33,297 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:33,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 1.7640449438202248) internal successors, (157), 88 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:18:33,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:33,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2023-12-02 20:18:33,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:33,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:33,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-02 20:18:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:39,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-12-02 20:18:39,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 20:18:39,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:39,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:39,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2102497193, now seen corresponding path program 5 times [2023-12-02 20:18:39,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:39,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727827215] [2023-12-02 20:18:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:39,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2023-12-02 20:18:40,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:40,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727827215] [2023-12-02 20:18:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727827215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114932797] [2023-12-02 20:18:40,467 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-02 20:18:40,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:40,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:40,468 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:40,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 20:18:40,556 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2023-12-02 20:18:40,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:18:40,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 113 conjunts are in the unsatisfiable core [2023-12-02 20:18:40,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:42,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-02 20:18:42,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114932797] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:42,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:42,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 56, 14] total 83 [2023-12-02 20:18:42,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765500181] [2023-12-02 20:18:42,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:42,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2023-12-02 20:18:42,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2023-12-02 20:18:42,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=6588, Unknown=0, NotChecked=0, Total=6972 [2023-12-02 20:18:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:42,958 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:42,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 1.7023809523809523) internal successors, (143), 83 states have internal predecessors, (143), 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) [2023-12-02 20:18:42,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:42,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2023-12-02 20:18:42,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:42,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:42,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2023-12-02 20:18:42,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-02 20:18:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-12-02 20:18:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-12-02 20:18:47,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 20:18:47,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:47,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:47,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1678518512, now seen corresponding path program 6 times [2023-12-02 20:18:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965404117] [2023-12-02 20:18:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:47,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-12-02 20:18:48,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965404117] [2023-12-02 20:18:48,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965404117] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:48,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530698928] [2023-12-02 20:18:48,106 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-02 20:18:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:48,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:48,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 20:18:48,208 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2023-12-02 20:18:48,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:18:48,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 85 conjunts are in the unsatisfiable core [2023-12-02 20:18:48,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:49,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2023-12-02 20:18:49,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530698928] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:49,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:49,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 45, 16] total 74 [2023-12-02 20:18:49,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020563882] [2023-12-02 20:18:49,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:49,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-12-02 20:18:49,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:49,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-12-02 20:18:49,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=5167, Unknown=0, NotChecked=0, Total=5550 [2023-12-02 20:18:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:49,908 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:49,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 1.7066666666666668) internal successors, (128), 74 states have internal predecessors, (128), 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) [2023-12-02 20:18:49,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:49,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2023-12-02 20:18:49,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:49,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:49,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2023-12-02 20:18:49,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2023-12-02 20:18:49,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:53,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-12-02 20:18:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-12-02 20:18:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-12-02 20:18:53,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2023-12-02 20:18:53,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 20:18:54,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:54,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:18:54,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:18:54,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1560854517, now seen corresponding path program 7 times [2023-12-02 20:18:54,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:18:54,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818523060] [2023-12-02 20:18:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:18:54,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:18:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-02 20:18:54,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:18:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818523060] [2023-12-02 20:18:54,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818523060] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:18:54,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063296004] [2023-12-02 20:18:54,910 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 20:18:54,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:18:54,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:18:54,911 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:18:54,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 20:18:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:18:54,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 85 conjunts are in the unsatisfiable core [2023-12-02 20:18:54,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:18:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:18:56,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:18:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-12-02 20:18:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063296004] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:18:56,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:18:56,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 45, 14] total 72 [2023-12-02 20:18:56,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056001561] [2023-12-02 20:18:56,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:18:56,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-02 20:18:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:18:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-02 20:18:56,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=4863, Unknown=0, NotChecked=0, Total=5256 [2023-12-02 20:18:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:18:56,662 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:18:56,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.63013698630137) internal successors, (119), 72 states have internal predecessors, (119), 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) [2023-12-02 20:18:56,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-12-02 20:18:56,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2023-12-02 20:18:56,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-12-02 20:18:56,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2023-12-02 20:18:56,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2023-12-02 20:18:56,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2023-12-02 20:18:56,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2023-12-02 20:18:56,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-02 20:19:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-12-02 20:19:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-12-02 20:19:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2023-12-02 20:19:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-12-02 20:19:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-02 20:19:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-12-02 20:19:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2023-12-02 20:19:08,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 20:19:08,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 20:19:08,282 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:19:08,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:19:08,282 INFO L85 PathProgramCache]: Analyzing trace with hash 765449512, now seen corresponding path program 2 times [2023-12-02 20:19:08,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:19:08,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133486283] [2023-12-02 20:19:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:19:08,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:19:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:19:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:19:08,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:19:08,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133486283] [2023-12-02 20:19:08,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133486283] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:19:08,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224165612] [2023-12-02 20:19:08,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:19:08,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:19:08,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:19:08,505 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:19:08,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 20:19:08,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:19:08,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:19:08,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 20:19:08,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:19:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:19:08,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:19:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:19:09,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224165612] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:19:09,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:19:09,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 35 [2023-12-02 20:19:09,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416509651] [2023-12-02 20:19:09,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:19:09,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-02 20:19:09,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:19:09,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-02 20:19:09,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2023-12-02 20:19:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:09,148 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:19:09,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.75) internal successors, (63), 35 states have internal predecessors, (63), 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) [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 163 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2023-12-02 20:19:09,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:19:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-12-02 20:19:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-02 20:19:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2023-12-02 20:19:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-12-02 20:19:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-02 20:19:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-12-02 20:19:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2023-12-02 20:19:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-02 20:19:10,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 20:19:10,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:19:10,906 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-02 20:19:10,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:19:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash -580310558, now seen corresponding path program 1 times [2023-12-02 20:19:10,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:19:10,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919035556] [2023-12-02 20:19:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:19:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:19:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:19:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:19:11,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:19:11,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919035556] [2023-12-02 20:19:11,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919035556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:19:11,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:19:11,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 20:19:11,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879531098] [2023-12-02 20:19:11,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:19:11,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 20:19:11,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:19:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 20:19:11,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-02 20:19:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:11,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:19:11,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 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) [2023-12-02 20:19:11,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:19:11,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-12-02 20:19:11,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2023-12-02 20:19:11,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 163 states. [2023-12-02 20:19:11,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-12-02 20:19:11,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2023-12-02 20:19:11,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2023-12-02 20:19:11,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 145 states. [2023-12-02 20:19:11,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2023-12-02 20:19:11,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-02 20:19:15,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:19:15,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-02 20:19:15,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-02 20:19:15,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-02 20:19:15,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 20:19:15,455 INFO L445 BasicCegarLoop]: Path program histogram: [7, 2, 1] [2023-12-02 20:19:15,458 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 20:19:15,458 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 20:19:15,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:19:15 BasicIcfg [2023-12-02 20:19:15,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 20:19:15,461 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:19:15,461 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:19:15,461 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:19:15,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:18:08" (3/4) ... [2023-12-02 20:19:15,463 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 20:19:15,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-12-02 20:19:15,466 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-12-02 20:19:15,470 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2023-12-02 20:19:15,470 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 20:19:15,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 20:19:15,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 20:19:15,544 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/witness.graphml [2023-12-02 20:19:15,545 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/witness.yml [2023-12-02 20:19:15,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:19:15,545 INFO L158 Benchmark]: Toolchain (without parser) took 67301.88ms. Allocated memory was 138.4MB in the beginning and 448.8MB in the end (delta: 310.4MB). Free memory was 92.8MB in the beginning and 288.1MB in the end (delta: -195.3MB). Peak memory consumption was 118.0MB. Max. memory is 16.1GB. [2023-12-02 20:19:15,546 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:19:15,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.17ms. Allocated memory is still 138.4MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 20:19:15,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.61ms. Allocated memory is still 138.4MB. Free memory was 81.5MB in the beginning and 79.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:19:15,547 INFO L158 Benchmark]: Boogie Preprocessor took 19.95ms. Allocated memory is still 138.4MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:19:15,547 INFO L158 Benchmark]: RCFGBuilder took 451.25ms. Allocated memory is still 138.4MB. Free memory was 78.4MB in the beginning and 87.6MB in the end (delta: -9.2MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-12-02 20:19:15,548 INFO L158 Benchmark]: TraceAbstraction took 66499.08ms. Allocated memory was 138.4MB in the beginning and 448.8MB in the end (delta: 310.4MB). Free memory was 86.5MB in the beginning and 293.4MB in the end (delta: -206.9MB). Peak memory consumption was 105.1MB. Max. memory is 16.1GB. [2023-12-02 20:19:15,548 INFO L158 Benchmark]: Witness Printer took 83.60ms. Allocated memory is still 448.8MB. Free memory was 293.4MB in the beginning and 288.1MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 20:19:15,550 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.17ms. Allocated memory is still 138.4MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.61ms. Allocated memory is still 138.4MB. Free memory was 81.5MB in the beginning and 79.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.95ms. Allocated memory is still 138.4MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 451.25ms. Allocated memory is still 138.4MB. Free memory was 78.4MB in the beginning and 87.6MB in the end (delta: -9.2MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 66499.08ms. Allocated memory was 138.4MB in the beginning and 448.8MB in the end (delta: 310.4MB). Free memory was 86.5MB in the beginning and 293.4MB in the end (delta: -206.9MB). Peak memory consumption was 105.1MB. Max. memory is 16.1GB. * Witness Printer took 83.60ms. Allocated memory is still 448.8MB. Free memory was 293.4MB in the beginning and 288.1MB in the end (delta: 5.3MB). 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: 6740, independent: 4971, independent conditional: 4743, independent unconditional: 228, dependent: 1769, dependent conditional: 1762, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5083, independent: 4971, independent conditional: 4743, independent unconditional: 228, dependent: 112, dependent conditional: 105, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5083, independent: 4971, independent conditional: 4743, independent unconditional: 228, dependent: 112, dependent conditional: 105, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6010, independent: 4971, independent conditional: 44, independent unconditional: 4927, dependent: 1039, dependent conditional: 883, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6010, independent: 4971, independent conditional: 44, independent unconditional: 4927, dependent: 1039, dependent conditional: 883, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6010, independent: 4971, independent conditional: 44, independent unconditional: 4927, dependent: 1039, dependent conditional: 883, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 243, independent: 203, independent conditional: 12, independent unconditional: 191, dependent: 40, dependent conditional: 33, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 243, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 54, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 40, dependent conditional: 33, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 40, dependent conditional: 33, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, independent: 50, independent conditional: 19, independent unconditional: 31, dependent: 93, dependent conditional: 69, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6010, independent: 4768, independent conditional: 32, independent unconditional: 4736, dependent: 999, dependent conditional: 850, dependent unconditional: 149, unknown: 243, unknown conditional: 45, unknown unconditional: 198] , Statistics on independence cache: Total cache size (in pairs): 243, Positive cache size: 203, Positive conditional cache size: 12, Positive unconditional cache size: 191, Negative cache size: 40, Negative conditional cache size: 33, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 9, Independence queries for same thread: 1657 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 70, Number of trivial persistent sets: 56, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 235, independent: 228, independent conditional: 0, independent unconditional: 228, 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: 6740, independent: 4971, independent conditional: 4743, independent unconditional: 228, dependent: 1769, dependent conditional: 1762, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5083, independent: 4971, independent conditional: 4743, independent unconditional: 228, dependent: 112, dependent conditional: 105, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5083, independent: 4971, independent conditional: 4743, independent unconditional: 228, dependent: 112, dependent conditional: 105, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6010, independent: 4971, independent conditional: 44, independent unconditional: 4927, dependent: 1039, dependent conditional: 883, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 6010, independent: 4971, independent conditional: 44, independent unconditional: 4927, dependent: 1039, dependent conditional: 883, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 6010, independent: 4971, independent conditional: 44, independent unconditional: 4927, dependent: 1039, dependent conditional: 883, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 243, independent: 203, independent conditional: 12, independent unconditional: 191, dependent: 40, dependent conditional: 33, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 243, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 54, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 40, dependent conditional: 33, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 40, dependent conditional: 33, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 143, independent: 50, independent conditional: 19, independent unconditional: 31, dependent: 93, dependent conditional: 69, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 6010, independent: 4768, independent conditional: 32, independent unconditional: 4736, dependent: 999, dependent conditional: 850, dependent unconditional: 149, unknown: 243, unknown conditional: 45, unknown unconditional: 198] , Statistics on independence cache: Total cache size (in pairs): 243, Positive cache size: 203, Positive conditional cache size: 12, Positive unconditional cache size: 191, Negative cache size: 40, Negative conditional cache size: 33, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 9, Independence queries for same thread: 1657 - PositiveResult [Line: 76]: 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: 66.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 43.3s, 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: 1031, 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, 0.5s SatisfiabilityAnalysisTime, 19.9s InterpolantComputationTime, 998 NumberOfCodeBlocks, 998 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 1462 ConstructedInterpolants, 0 QuantifiedInterpolants, 13928 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1727 ConjunctsInSsa, 554 ConjunctsInUnsatCore, 28 InterpolantComputations, 1 PerfectInterpolantSequences, 1456/5199 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! [2023-12-02 20:19:15,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2023-12-02 20:19:15,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ef1a4d9-7aab-41fd-8f9c-80d4349d4fbe/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE