./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW --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 25cf9c0a16564c460f6e824f90a2df4185d2e5d2c682a221258efaf06dec8ca4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:45:29,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:45:29,984 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-17 22:45:29,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:45:29,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:45:30,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:45:30,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:45:30,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:45:30,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:45:30,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:45:30,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:45:30,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:45:30,042 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:45:30,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:45:30,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:45:30,045 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:45:30,045 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:45:30,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:45:30,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:45:30,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:45:30,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:45:30,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:45:30,048 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:45:30,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:45:30,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:45:30,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:45:30,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:45:30,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:45:30,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:45:30,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:45:30,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:45:30,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:45:30,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:45:30,056 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:45:30,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:45:30,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:45:30,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:45:30,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:45:30,057 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:45:30,057 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:45:30,058 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_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25cf9c0a16564c460f6e824f90a2df4185d2e5d2c682a221258efaf06dec8ca4 [2023-11-17 22:45:30,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:45:30,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:45:30,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:45:30,391 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:45:30,391 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:45:30,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2023-11-17 22:45:33,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:45:33,772 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:45:33,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2023-11-17 22:45:33,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/data/6d7245c61/3e8f4ba0598b4c43afcf3aa773f5781c/FLAG15e95ec7f [2023-11-17 22:45:33,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/data/6d7245c61/3e8f4ba0598b4c43afcf3aa773f5781c [2023-11-17 22:45:33,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:45:33,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:45:33,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:45:33,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:45:33,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:45:33,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:45:33" (1/1) ... [2023-11-17 22:45:33,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc2a23b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:33, skipping insertion in model container [2023-11-17 22:45:33,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:45:33" (1/1) ... [2023-11-17 22:45:33,835 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:45:34,019 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_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2625,2638] [2023-11-17 22:45:34,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:45:34,041 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:45:34,063 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_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2625,2638] [2023-11-17 22:45:34,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:45:34,075 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:45:34,075 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 22:45:34,081 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:45:34,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34 WrapperNode [2023-11-17 22:45:34,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:45:34,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:45:34,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:45:34,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:45:34,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,123 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 105 [2023-11-17 22:45:34,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:45:34,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:45:34,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:45:34,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:45:34,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:45:34,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:45:34,160 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:45:34,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:45:34,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (1/1) ... [2023-11-17 22:45:34,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:45:34,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:34,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:45:34,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:45:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:45:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-17 22:45:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-17 22:45:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-17 22:45:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-17 22:45:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-17 22:45:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-17 22:45:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:45:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:45:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:45:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 22:45:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 22:45:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 22:45:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:45:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:45:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:45:34,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:45:34,263 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:45:34,373 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:45:34,375 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:45:34,671 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:45:34,799 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:45:34,799 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-17 22:45:34,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:45:34 BoogieIcfgContainer [2023-11-17 22:45:34,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:45:34,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:45:34,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:45:34,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:45:34,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:45:33" (1/3) ... [2023-11-17 22:45:34,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f778a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:45:34, skipping insertion in model container [2023-11-17 22:45:34,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:45:34" (2/3) ... [2023-11-17 22:45:34,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f778a87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:45:34, skipping insertion in model container [2023-11-17 22:45:34,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:45:34" (3/3) ... [2023-11-17 22:45:34,813 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2023-11-17 22:45:34,822 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:45:34,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:45:34,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 22:45:34,833 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:45:34,915 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-17 22:45:34,967 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:45:34,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:45:34,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:34,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:45:34,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:45:35,031 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:45:35,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-17 22:45:35,052 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;@628c2e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:45:35,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 22:45:35,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:35,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash 5880872, now seen corresponding path program 1 times [2023-11-17 22:45:35,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951240342] [2023-11-17 22:45:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:35,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 22:45:35,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951240342] [2023-11-17 22:45:35,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951240342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:45:35,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:45:35,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:45:35,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855445007] [2023-11-17 22:45:35,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:45:35,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:45:35,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:35,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:45:35,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:45:35,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:35,718 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:35,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:35,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:35,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:45:35,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:35,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash -444581483, now seen corresponding path program 1 times [2023-11-17 22:45:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:35,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272144101] [2023-11-17 22:45:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:35,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 22:45:36,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:36,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272144101] [2023-11-17 22:45:36,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272144101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:45:36,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:45:36,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-17 22:45:36,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566443146] [2023-11-17 22:45:36,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:45:36,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:45:36,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:45:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-17 22:45:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:36,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:36,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:36,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:36,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:36,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:45:36,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:36,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:36,676 INFO L85 PathProgramCache]: Analyzing trace with hash 701117710, now seen corresponding path program 1 times [2023-11-17 22:45:36,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400955138] [2023-11-17 22:45:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:36,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:45:37,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:37,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400955138] [2023-11-17 22:45:37,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400955138] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:45:37,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718747475] [2023-11-17 22:45:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:37,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:37,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:45:37,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 22:45:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:37,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-17 22:45:37,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:45:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:45:37,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:45:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:45:38,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718747475] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:45:38,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:45:38,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-11-17 22:45:38,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405910623] [2023-11-17 22:45:38,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:45:38,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 22:45:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:38,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 22:45:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-17 22:45:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:38,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:38,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:38,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:38,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:38,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:38,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:38,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:38,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-17 22:45:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:38,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:38,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:38,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1111598983, now seen corresponding path program 2 times [2023-11-17 22:45:38,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:38,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027400190] [2023-11-17 22:45:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:45:39,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027400190] [2023-11-17 22:45:39,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027400190] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:45:39,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907692586] [2023-11-17 22:45:39,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:45:39,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:39,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:39,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:45:39,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 22:45:39,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 22:45:39,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:45:39,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-17 22:45:39,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:45:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-17 22:45:39,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:45:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-17 22:45:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907692586] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:45:40,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:45:40,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2023-11-17 22:45:40,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087690308] [2023-11-17 22:45:40,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:45:40,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-17 22:45:40,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:40,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-17 22:45:40,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2023-11-17 22:45:40,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:40,198 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:40,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.827586206896552) internal successors, (256), 29 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:40,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:40,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:40,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:40,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:42,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 22:45:42,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:42,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:42,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:42,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1583361835, now seen corresponding path program 1 times [2023-11-17 22:45:42,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:42,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312258424] [2023-11-17 22:45:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:42,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:45:43,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:43,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312258424] [2023-11-17 22:45:43,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312258424] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:45:43,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662428887] [2023-11-17 22:45:43,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:43,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:43,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:43,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:45:43,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 22:45:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:43,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-17 22:45:43,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:45:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 22:45:43,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:45:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-17 22:45:44,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662428887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:45:44,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:45:44,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 38 [2023-11-17 22:45:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554350780] [2023-11-17 22:45:44,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:45:44,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-17 22:45:44,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:44,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-17 22:45:44,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1204, Unknown=0, NotChecked=0, Total=1406 [2023-11-17 22:45:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:44,195 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:44,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.473684210526316) internal successors, (284), 38 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:44,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:44,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:44,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:44,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:44,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:44,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:44,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 22:45:45,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:45,054 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:45,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:45,054 INFO L85 PathProgramCache]: Analyzing trace with hash 203113422, now seen corresponding path program 2 times [2023-11-17 22:45:45,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:45,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599459882] [2023-11-17 22:45:45,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:45,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:45:45,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:45,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599459882] [2023-11-17 22:45:45,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599459882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:45:45,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916422819] [2023-11-17 22:45:45,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:45:45,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:45,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:45,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:45:45,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 22:45:45,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 22:45:45,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:45:45,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-17 22:45:45,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:45:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:45:46,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:45:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:45:47,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916422819] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:45:47,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:45:47,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 19] total 48 [2023-11-17 22:45:47,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934486706] [2023-11-17 22:45:47,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:45:47,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-17 22:45:47,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:47,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-17 22:45:47,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=2028, Unknown=0, NotChecked=0, Total=2256 [2023-11-17 22:45:47,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:47,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:47,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 8.041666666666666) internal successors, (386), 48 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:47,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:49,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:45:49,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-17 22:45:49,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-17 22:45:49,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:49,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:49,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1756341096, now seen corresponding path program 3 times [2023-11-17 22:45:49,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:49,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536521949] [2023-11-17 22:45:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:49,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 33 proven. 88 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:45:50,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:50,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536521949] [2023-11-17 22:45:50,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536521949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:45:50,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376405540] [2023-11-17 22:45:50,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 22:45:50,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:50,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:50,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:45:50,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 22:45:50,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-17 22:45:50,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:45:50,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-17 22:45:50,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:45:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 21 proven. 48 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-17 22:45:51,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:45:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 33 proven. 11 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-17 22:45:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376405540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:45:51,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:45:51,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 12] total 42 [2023-11-17 22:45:51,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674966125] [2023-11-17 22:45:51,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:45:51,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-17 22:45:51,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-17 22:45:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1580, Unknown=0, NotChecked=0, Total=1722 [2023-11-17 22:45:51,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:51,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:51,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 8.095238095238095) internal successors, (340), 42 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:51,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:51,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:51,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:51,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:51,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:51,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:45:51,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:55,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:45:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-11-17 22:45:55,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 22:45:55,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-17 22:45:55,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:55,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:55,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1421729046, now seen corresponding path program 4 times [2023-11-17 22:45:55,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:55,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392441071] [2023-11-17 22:45:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:55,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:45:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 67 proven. 84 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-17 22:45:56,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:45:56,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392441071] [2023-11-17 22:45:56,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392441071] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:45:56,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105229921] [2023-11-17 22:45:56,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 22:45:56,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:56,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:45:56,303 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:45:56,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 22:45:56,512 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 22:45:56,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:45:56,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-17 22:45:56,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:45:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 78 proven. 68 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-17 22:45:57,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:45:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 94 proven. 52 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-17 22:45:58,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105229921] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:45:58,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:45:58,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 61 [2023-11-17 22:45:58,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418221730] [2023-11-17 22:45:58,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:45:58,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-11-17 22:45:58,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:45:58,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-11-17 22:45:58,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=3190, Unknown=0, NotChecked=0, Total=3660 [2023-11-17 22:45:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:58,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:45:58,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 6.262295081967213) internal successors, (382), 61 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:45:58,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:58,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:58,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:58,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:58,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:58,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:45:58,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2023-11-17 22:45:58,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:45:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:45:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:45:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:45:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:45:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:45:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-11-17 22:45:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-17 22:45:59,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 22:45:59,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:45:59,619 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:45:59,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:45:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1245682705, now seen corresponding path program 5 times [2023-11-17 22:45:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:45:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269208700] [2023-11-17 22:45:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:45:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:45:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:00,693 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 62 proven. 129 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:46:00,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:00,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269208700] [2023-11-17 22:46:00,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269208700] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:00,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96194243] [2023-11-17 22:46:00,694 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 22:46:00,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:00,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:00,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:00,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-17 22:46:00,995 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-17 22:46:00,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:46:00,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-17 22:46:01,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 80 proven. 111 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:46:02,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:46:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 106 proven. 85 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-17 22:46:03,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96194243] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:46:03,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:46:03,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 80 [2023-11-17 22:46:03,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78125782] [2023-11-17 22:46:03,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:46:03,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2023-11-17 22:46:03,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:03,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2023-11-17 22:46:03,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=804, Invalid=5516, Unknown=0, NotChecked=0, Total=6320 [2023-11-17 22:46:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:03,600 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:03,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 5.825) internal successors, (466), 80 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:46:03,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:03,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:03,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:03,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:46:03,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:46:03,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:46:03,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2023-11-17 22:46:03,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-17 22:46:03,602 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:05,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-17 22:46:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-17 22:46:05,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-17 22:46:05,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:05,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 22:46:05,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:46:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 602753375, now seen corresponding path program 6 times [2023-11-17 22:46:05,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:46:05,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50975308] [2023-11-17 22:46:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:46:05,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:46:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:46:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 90 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:46:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:46:06,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50975308] [2023-11-17 22:46:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50975308] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:46:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309103536] [2023-11-17 22:46:06,411 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-17 22:46:06,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:46:06,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:46:06,412 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:46:06,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bd26a6c-e9e2-4ac8-95ec-e354526b21d7/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-17 22:46:06,789 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-11-17 22:46:06,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:46:06,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-17 22:46:06,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:46:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-17 22:46:07,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:46:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 37 proven. 70 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-17 22:46:09,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309103536] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:46:09,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:46:09,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27, 25] total 76 [2023-11-17 22:46:09,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925864676] [2023-11-17 22:46:09,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:46:09,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2023-11-17 22:46:09,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:46:09,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2023-11-17 22:46:09,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=5313, Unknown=0, NotChecked=0, Total=5700 [2023-11-17 22:46:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:09,128 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:46:09,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.947368421052632) internal successors, (452), 76 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:46:09,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:46:09,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-11-17 22:46:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.