./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca --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 aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:35:43,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:35:43,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:35:43,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:35:43,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:35:43,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:35:43,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:35:43,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:35:43,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:35:43,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:35:43,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:35:43,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:35:43,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:35:43,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:35:43,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:35:43,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:35:43,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:35:43,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:35:43,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:35:43,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:35:43,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:35:43,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:35:43,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:35:43,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:35:43,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:35:43,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:35:43,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:35:43,267 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:35:43,268 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:35:43,269 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:35:43,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca 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 -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 [2024-11-23 11:35:43,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:35:43,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:35:43,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:35:43,616 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:35:43,616 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:35:43,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2024-11-23 11:35:46,699 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/data/8698b6e60/7f46a5b645f642aabaad6e55f0626720/FLAG2ea69652e [2024-11-23 11:35:47,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:35:47,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2024-11-23 11:35:47,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/data/8698b6e60/7f46a5b645f642aabaad6e55f0626720/FLAG2ea69652e [2024-11-23 11:35:47,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/data/8698b6e60/7f46a5b645f642aabaad6e55f0626720 [2024-11-23 11:35:47,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:35:47,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:35:47,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:35:47,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:35:47,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:35:47,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f00eeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47, skipping insertion in model container [2024-11-23 11:35:47,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:35:47,298 WARN L250 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_bea4754f-daf4-41a5-869c-79e266a7d57d/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2024-11-23 11:35:47,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:35:47,320 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:35:47,358 WARN L250 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_bea4754f-daf4-41a5-869c-79e266a7d57d/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2024-11-23 11:35:47,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:35:47,382 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:35:47,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47 WrapperNode [2024-11-23 11:35:47,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:35:47,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:35:47,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:35:47,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:35:47,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,463 INFO L138 Inliner]: procedures = 28, calls = 58, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 372 [2024-11-23 11:35:47,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:35:47,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:35:47,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:35:47,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:35:47,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,492 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:35:47,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:35:47,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:35:47,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:35:47,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (1/1) ... [2024-11-23 11:35:47,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:35:47,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:47,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:35:47,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:35:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:35:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:35:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:35:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:35:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:35:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:35:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-23 11:35:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-23 11:35:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-23 11:35:47,599 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-23 11:35:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:35:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:35:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:35:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:35:47,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:35:47,601 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:35:47,740 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:35:47,743 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:35:48,514 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:35:48,514 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:35:49,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:35:49,046 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-23 11:35:49,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:35:49 BoogieIcfgContainer [2024-11-23 11:35:49,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:35:49,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:35:49,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:35:49,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:35:49,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:35:47" (1/3) ... [2024-11-23 11:35:49,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212d160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:35:49, skipping insertion in model container [2024-11-23 11:35:49,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:35:47" (2/3) ... [2024-11-23 11:35:49,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212d160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:35:49, skipping insertion in model container [2024-11-23 11:35:49,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:35:49" (3/3) ... [2024-11-23 11:35:49,059 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2024-11-23 11:35:49,077 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:35:49,080 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-2.wvr.c that has 7 procedures, 62 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-23 11:35:49,080 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:35:49,252 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-23 11:35:49,327 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:35:49,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:35:49,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:49,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:35:49,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:35:49,467 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:35:49,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork1 ======== [2024-11-23 11:35:49,499 INFO L333 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, 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;@4dae2685, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:35:49,499 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 11:35:51,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-23 11:35:51,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-23 11:35:51,513 INFO L422 BasicCegarLoop]: Path program histogram: [] [2024-11-23 11:35:51,516 INFO L319 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork1 was SAFE,SAFE (1/3) [2024-11-23 11:35:51,526 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:35:51,530 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:35:51,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:35:51,534 INFO L333 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, 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;@4dae2685, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:35:51,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-23 11:35:51,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:35:51,772 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:35:51,772 INFO L139 ounterexampleChecker]: Examining path program with hash 1791035739, occurence #1 [2024-11-23 11:35:51,772 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:35:51,773 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:35:51,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:51,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1536810596, now seen corresponding path program 1 times [2024-11-23 11:35:51,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:35:51,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786750446] [2024-11-23 11:35:51,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:51,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:35:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:52,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786750446] [2024-11-23 11:35:52,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786750446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:35:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:35:52,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 11:35:52,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079248132] [2024-11-23 11:35:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:35:52,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 11:35:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:35:52,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 11:35:52,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 11:35:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:52,176 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:35:52,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2024-11-23 11:35:52,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:54,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:35:54,065 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:35:54,065 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:35:54,066 INFO L139 ounterexampleChecker]: Examining path program with hash 97246088, occurence #1 [2024-11-23 11:35:54,066 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:35:54,066 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:35:54,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2059670589, now seen corresponding path program 1 times [2024-11-23 11:35:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:35:54,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243173507] [2024-11-23 11:35:54,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:54,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:35:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:55,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:55,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243173507] [2024-11-23 11:35:55,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243173507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:35:55,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:35:55,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:35:55,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994169056] [2024-11-23 11:35:55,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:35:55,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:35:55,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:35:55,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:35:55,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:35:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:55,105 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:35:55,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:35:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:55,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:55,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:55,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 11:35:55,671 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:35:55,671 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:35:55,672 INFO L139 ounterexampleChecker]: Examining path program with hash 97246088, occurence #2 [2024-11-23 11:35:55,672 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:35:55,672 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:35:55,673 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,673 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:35:55,779 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:55,779 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:35:55,779 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,779 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:35:55,779 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,779 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-23 11:35:55,780 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:55,780 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-23 11:35:55,780 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,780 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:35:55,780 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,780 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-11-23 11:35:55,780 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,780 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-11-23 11:35:55,780 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,780 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-11-23 11:35:55,780 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,780 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-11-23 11:35:55,781 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:55,781 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-23 11:35:55,781 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,781 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 74 [2024-11-23 11:35:55,781 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:55,781 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-23 11:35:55,781 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:35:55,781 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2024-11-23 11:35:55,781 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:35:55,781 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:35:55,781 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:35:55,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1434585363, now seen corresponding path program 1 times [2024-11-23 11:35:55,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:35:55,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411161913] [2024-11-23 11:35:55,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:55,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:35:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:56,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411161913] [2024-11-23 11:35:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411161913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047648111] [2024-11-23 11:35:56,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:35:56,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:35:56,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:56,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:35:56,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:35:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:35:56,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 11:35:56,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:35:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:35:57,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:35:57,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047648111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:35:57,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:35:57,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 15 [2024-11-23 11:35:57,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882161969] [2024-11-23 11:35:57,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:35:57,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 11:35:57,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:35:57,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 11:35:57,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-23 11:35:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:57,121 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:35:57,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 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) [2024-11-23 11:35:57,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:57,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:57,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:35:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:35:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:35:57,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 11:35:58,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:35:58,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:35:58,106 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:35:58,106 INFO L139 ounterexampleChecker]: Examining path program with hash -1025597883, occurence #1 [2024-11-23 11:35:58,107 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:35:58,107 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:35:58,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:35:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1259928583, now seen corresponding path program 2 times [2024-11-23 11:35:58,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:35:58,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495187757] [2024-11-23 11:35:58,108 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:35:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:35:58,373 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:35:58,373 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:59,268 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:35:59,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:35:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495187757] [2024-11-23 11:35:59,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495187757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:35:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116629680] [2024-11-23 11:35:59,268 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:35:59,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:35:59,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:35:59,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:35:59,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:35:59,471 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:35:59,471 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:35:59,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 11:35:59,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:00,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 11:36:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116629680] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:00,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:00,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 17] total 33 [2024-11-23 11:36:00,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715929142] [2024-11-23 11:36:00,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:36:00,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:36:00,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:00,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:36:00,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 11:36:00,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:00,396 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:00,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:36:00,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:00,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:00,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:00,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:01,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 11:36:01,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:01,995 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:01,995 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:01,995 INFO L139 ounterexampleChecker]: Examining path program with hash 116515619, occurence #1 [2024-11-23 11:36:01,995 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:36:01,995 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:01,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:01,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1801913364, now seen corresponding path program 3 times [2024-11-23 11:36:01,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:01,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053719175] [2024-11-23 11:36:01,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:36:01,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:02,121 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:36:02,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:36:02,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053719175] [2024-11-23 11:36:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053719175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188361052] [2024-11-23 11:36:02,835 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:36:02,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:02,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:02,837 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:02,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:36:03,039 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:36:03,039 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:03,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 11:36:03,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:36:03,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:36:03,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188361052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:03,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:03,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2024-11-23 11:36:03,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506636493] [2024-11-23 11:36:03,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:03,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 11:36:03,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:03,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 11:36:03,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2024-11-23 11:36:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:03,624 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:03,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.208333333333334) internal successors, (197), 23 states have internal predecessors, (197), 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) [2024-11-23 11:36:03,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:03,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:03,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:03,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:03,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:04,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 11:36:05,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:05,089 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:05,089 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:05,089 INFO L139 ounterexampleChecker]: Examining path program with hash 116515619, occurence #2 [2024-11-23 11:36:05,090 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:05,090 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:05,090 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,093 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:36:05,093 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:36:05,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:36:05,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-23 11:36:05,094 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-23 11:36:05,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:36:05,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 59 [2024-11-23 11:36:05,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2024-11-23 11:36:05,094 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:05,094 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 93 [2024-11-23 11:36:05,095 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:05,095 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2024-11-23 11:36:05,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1023989454, now seen corresponding path program 1 times [2024-11-23 11:36:05,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:05,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558030919] [2024-11-23 11:36:05,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:05,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 25 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:06,671 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:06,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558030919] [2024-11-23 11:36:06,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558030919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:06,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1948701310] [2024-11-23 11:36:06,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:06,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:06,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 11:36:06,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1948701310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:08,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:08,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 43 [2024-11-23 11:36:08,228 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:08,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 109 [2024-11-23 11:36:08,228 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:08,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-23 11:36:08,228 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:08,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2024-11-23 11:36:08,228 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:08,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-23 11:36:08,229 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:08,229 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2024-11-23 11:36:08,229 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:08,229 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:36:08,229 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:08,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:08,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2044004286, now seen corresponding path program 4 times [2024-11-23 11:36:08,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:08,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426155737] [2024-11-23 11:36:08,229 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:36:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:08,264 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:36:08,264 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-23 11:36:08,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:08,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426155737] [2024-11-23 11:36:08,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426155737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:08,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141673529] [2024-11-23 11:36:08,685 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:36:08,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:08,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:08,687 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:08,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:36:08,861 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:36:08,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:08,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:36:08,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:09,526 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 11:36:09,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 11:36:09,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141673529] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:09,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:09,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 21] total 35 [2024-11-23 11:36:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165929137] [2024-11-23 11:36:09,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:36:09,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 11:36:09,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:09,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 11:36:09,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=959, Unknown=0, NotChecked=0, Total=1190 [2024-11-23 11:36:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:09,957 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:09,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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) [2024-11-23 11:36:09,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:09,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:09,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:09,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:09,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:09,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:10,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:10,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:36:10,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:10,622 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:10,622 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:10,622 INFO L139 ounterexampleChecker]: Examining path program with hash -92839041, occurence #1 [2024-11-23 11:36:10,622 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:36:10,623 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:10,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1193789737, now seen corresponding path program 5 times [2024-11-23 11:36:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:10,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507258158] [2024-11-23 11:36:10,623 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:36:10,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:10,703 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-23 11:36:10,704 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:36:11,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:11,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507258158] [2024-11-23 11:36:11,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507258158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:11,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008153189] [2024-11-23 11:36:11,268 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:36:11,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:11,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:11,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:11,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:36:11,767 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-23 11:36:11,767 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:11,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 11:36:11,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 43 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:36:12,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 11:36:12,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008153189] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:12,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:12,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2024-11-23 11:36:12,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312986580] [2024-11-23 11:36:12,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:12,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-23 11:36:12,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:12,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-23 11:36:12,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=934, Unknown=0, NotChecked=0, Total=1190 [2024-11-23 11:36:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:12,589 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:12,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.8) internal successors, (238), 34 states have internal predecessors, (238), 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) [2024-11-23 11:36:12,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:12,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:12,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:12,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:12,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:12,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:12,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:13,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 11:36:13,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:13,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:13,552 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:13,554 INFO L139 ounterexampleChecker]: Examining path program with hash -92839041, occurence #2 [2024-11-23 11:36:13,554 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-23 11:36:13,555 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:36:13,555 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,555 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2024-11-23 11:36:13,555 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:13,556 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2024-11-23 11:36:13,556 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:13,556 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 114 [2024-11-23 11:36:13,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1269768892, now seen corresponding path program 1 times [2024-11-23 11:36:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:13,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457917282] [2024-11-23 11:36:13,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:13,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:14,536 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:14,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457917282] [2024-11-23 11:36:14,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457917282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:14,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [842962649] [2024-11-23 11:36:14,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:14,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:36:14,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 31 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:15,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [842962649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:15,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:15,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34 [2024-11-23 11:36:15,618 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:15,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 123 [2024-11-23 11:36:15,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:15,618 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 127 [2024-11-23 11:36:15,618 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:15,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-11-23 11:36:15,619 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:15,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 133 [2024-11-23 11:36:15,619 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:15,619 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 135 [2024-11-23 11:36:15,619 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:15,619 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:36:15,619 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:15,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:15,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1332788287, now seen corresponding path program 6 times [2024-11-23 11:36:15,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:15,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736974958] [2024-11-23 11:36:15,622 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:36:15,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:15,921 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-23 11:36:15,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:16,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736974958] [2024-11-23 11:36:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736974958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100280863] [2024-11-23 11:36:16,953 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:36:16,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:16,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:16,956 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:16,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:36:17,309 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-23 11:36:17,310 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:17,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 11:36:17,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:18,554 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 47 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:18,554 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 53 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:19,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100280863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:19,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:19,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 62 [2024-11-23 11:36:19,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035063718] [2024-11-23 11:36:19,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:19,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-23 11:36:19,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:19,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-23 11:36:19,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=756, Invalid=3150, Unknown=0, NotChecked=0, Total=3906 [2024-11-23 11:36:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:19,712 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:19,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 5.9523809523809526) internal successors, (375), 62 states have internal predecessors, (375), 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) [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:19,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:36:21,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 11:36:21,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 11:36:21,358 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:21,358 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:21,359 INFO L139 ounterexampleChecker]: Examining path program with hash -92839041, occurence #3 [2024-11-23 11:36:21,359 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:21,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:21,359 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-23 11:36:21,359 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:21,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:36:21,359 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-23 11:36:21,359 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:36:21,359 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:21,359 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:36:21,359 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-23 11:36:21,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 92 [2024-11-23 11:36:21,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-23 11:36:21,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:21,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-11-23 11:36:21,360 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:21,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 122 [2024-11-23 11:36:21,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:21,382 INFO L85 PathProgramCache]: Analyzing trace with hash 167644611, now seen corresponding path program 1 times [2024-11-23 11:36:21,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:21,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621427942] [2024-11-23 11:36:21,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:21,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 105 proven. 60 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 11:36:23,116 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621427942] [2024-11-23 11:36:23,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621427942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:23,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1852437217] [2024-11-23 11:36:23,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:23,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:23,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-23 11:36:23,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 105 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:25,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1852437217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:25,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:25,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 36] total 62 [2024-11-23 11:36:25,037 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:25,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2024-11-23 11:36:25,037 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:25,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 135 [2024-11-23 11:36:25,037 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:25,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2024-11-23 11:36:25,037 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:25,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2024-11-23 11:36:25,037 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:25,038 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 143 [2024-11-23 11:36:25,038 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:25,038 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:36:25,038 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:25,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash 671870657, now seen corresponding path program 7 times [2024-11-23 11:36:25,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:25,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764354094] [2024-11-23 11:36:25,039 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:36:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:26,925 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 105 proven. 60 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 11:36:26,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:26,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764354094] [2024-11-23 11:36:26,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764354094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:26,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561894867] [2024-11-23 11:36:26,926 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:36:26,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:26,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:26,928 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:26,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:36:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:27,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 11:36:27,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 11:36:27,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 17 proven. 21 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-23 11:36:28,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561894867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:28,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:28,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 18, 9] total 53 [2024-11-23 11:36:28,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214107260] [2024-11-23 11:36:28,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:28,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-23 11:36:28,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:28,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-23 11:36:28,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2448, Unknown=0, NotChecked=0, Total=2756 [2024-11-23 11:36:28,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:28,307 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:28,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.811320754716981) internal successors, (308), 53 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:36:28,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:36:31,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 11:36:31,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:31,912 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:31,912 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:31,912 INFO L139 ounterexampleChecker]: Examining path program with hash 1848180502, occurence #1 [2024-11-23 11:36:31,912 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:36:31,912 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:31,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:31,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1571282190, now seen corresponding path program 8 times [2024-11-23 11:36:31,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:31,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850101927] [2024-11-23 11:36:31,913 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:36:31,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:32,055 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:36:32,055 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 303 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:36:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:36,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850101927] [2024-11-23 11:36:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850101927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:36,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613488946] [2024-11-23 11:36:36,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:36:36,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:36,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:36,343 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:36,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 11:36:36,677 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:36:36,677 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:36,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-23 11:36:36,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 291 proven. 138 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 11:36:39,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 309 proven. 120 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 11:36:41,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613488946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:41,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:41,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 37, 37] total 128 [2024-11-23 11:36:41,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767499795] [2024-11-23 11:36:41,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:41,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2024-11-23 11:36:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:41,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2024-11-23 11:36:41,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2283, Invalid=14229, Unknown=0, NotChecked=0, Total=16512 [2024-11-23 11:36:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:41,601 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:41,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 129 states have (on average 4.589147286821706) internal successors, (592), 128 states have internal predecessors, (592), 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) [2024-11-23 11:36:41,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:41,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:36:41,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:36:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-23 11:36:44,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-23 11:36:44,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 11:36:44,462 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:36:44,462 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:44,463 INFO L139 ounterexampleChecker]: Examining path program with hash 1848180502, occurence #2 [2024-11-23 11:36:44,463 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:44,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:44,463 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:36:44,463 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:44,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-23 11:36:44,463 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:36:44,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-23 11:36:44,465 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:44,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:36:44,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,465 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-23 11:36:44,465 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,466 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 128 [2024-11-23 11:36:44,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:44,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1068540709, now seen corresponding path program 1 times [2024-11-23 11:36:44,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:44,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036860081] [2024-11-23 11:36:44,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 11:36:44,787 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-23 11:36:44,787 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-23 11:36:44,787 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2024-11-23 11:36:44,787 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2024-11-23 11:36:44,788 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2024-11-23 11:36:44,788 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 190 [2024-11-23 11:36:44,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:44,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 198 [2024-11-23 11:36:44,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 202 [2024-11-23 11:36:44,790 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 206 [2024-11-23 11:36:44,790 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-11-23 11:36:44,790 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 210 [2024-11-23 11:36:44,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:44,790 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2024-11-23 11:36:44,790 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:44,791 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 216 [2024-11-23 11:36:44,791 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:44,791 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:36:44,791 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:44,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash -589354488, now seen corresponding path program 9 times [2024-11-23 11:36:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127146846] [2024-11-23 11:36:44,793 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:36:44,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:45,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-23 11:36:45,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-23 11:37:02,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:02,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127146846] [2024-11-23 11:37:02,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127146846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:02,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864895484] [2024-11-23 11:37:02,756 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:37:02,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:02,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:02,758 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:02,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 11:37:03,282 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-23 11:37:03,282 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:03,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 347 conjuncts are in the unsatisfiable core [2024-11-23 11:37:03,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:03,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-23 11:37:39,934 WARN L286 SmtUtils]: Spent 15.15s on a formula simplification that was a NOOP. DAG size: 789 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-23 11:37:39,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-23 11:37:39,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 36 select indices, 36 select index equivalence classes, 171 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 630 case distinctions, treesize of input 268 treesize of output 2634 [2024-11-23 11:47:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 15 proven. 417 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-23 11:47:46,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:48:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 327 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-23 11:48:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864895484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:48:14,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:48:14,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 89, 83] total 208 [2024-11-23 11:48:14,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715782094] [2024-11-23 11:48:14,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:48:14,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 208 states [2024-11-23 11:48:14,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:48:14,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2024-11-23 11:48:14,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1234, Invalid=41822, Unknown=0, NotChecked=0, Total=43056 [2024-11-23 11:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:48:14,671 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:48:14,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 208 states, 208 states have (on average 2.4951923076923075) internal successors, (519), 208 states have internal predecessors, (519), 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) [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-11-23 11:48:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:49:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-23 11:49:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-23 11:49:14,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 11:49:14,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-11-23 11:49:14,381 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:49:14,381 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:49:14,382 INFO L139 ounterexampleChecker]: Examining path program with hash 460930268, occurence #1 [2024-11-23 11:49:14,382 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:49:14,382 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:49:14,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:49:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1366923550, now seen corresponding path program 10 times [2024-11-23 11:49:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:49:14,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940409601] [2024-11-23 11:49:14,383 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:49:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:49:14,496 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:49:14,496 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:49:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 398 proven. 231 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 11:49:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:49:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940409601] [2024-11-23 11:49:17,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940409601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:49:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160559942] [2024-11-23 11:49:17,958 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:49:17,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:49:17,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:49:17,960 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:49:17,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 11:49:18,378 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:49:18,378 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:49:18,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-23 11:49:18,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:49:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 398 proven. 231 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 11:49:21,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:49:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 416 proven. 213 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 11:49:23,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160559942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:49:23,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:49:23,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 44, 44] total 109 [2024-11-23 11:49:23,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146240991] [2024-11-23 11:49:23,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:49:23,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2024-11-23 11:49:23,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:49:23,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2024-11-23 11:49:23,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2949, Invalid=9041, Unknown=0, NotChecked=0, Total=11990 [2024-11-23 11:49:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:49:23,859 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:49:23,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 5.609090909090909) internal successors, (617), 109 states have internal predecessors, (617), 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) [2024-11-23 11:49:23,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-11-23 11:49:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-23 11:49:25,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-23 11:49:25,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-23 11:49:25,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 11:49:25,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea4754f-daf4-41a5-869c-79e266a7d57d/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:49:25,447 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-23 11:49:25,447 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:49:25,448 INFO L139 ounterexampleChecker]: Examining path program with hash 460930268, occurence #2 [2024-11-23 11:49:25,448 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:49:25,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:49:25,448 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-23 11:49:25,448 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:49:25,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:49:25,448 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-11-23 11:49:25,448 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:49:25,448 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:49:25,449 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-23 11:49:25,449 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,449 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-23 11:49:25,449 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,449 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 134 [2024-11-23 11:49:25,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:49:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1749637183, now seen corresponding path program 1 times [2024-11-23 11:49:25,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:49:25,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118146689] [2024-11-23 11:49:25,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:49:25,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:49:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 11:49:25,700 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2024-11-23 11:49:25,700 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2024-11-23 11:49:25,701 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 179 [2024-11-23 11:49:25,701 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,701 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 198 [2024-11-23 11:49:25,701 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,701 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 205 [2024-11-23 11:49:25,701 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,701 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2024-11-23 11:49:25,701 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:49:25,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 216 [2024-11-23 11:49:25,702 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 220 [2024-11-23 11:49:25,702 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 224 [2024-11-23 11:49:25,702 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 226 [2024-11-23 11:49:25,702 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,702 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 228 [2024-11-23 11:49:25,703 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:49:25,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 233 [2024-11-23 11:49:25,703 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:49:25,703 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 234 [2024-11-23 11:49:25,703 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:49:25,703 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:49:25,703 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:49:25,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:49:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1364718558, now seen corresponding path program 11 times [2024-11-23 11:49:25,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:49:25,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944232366] [2024-11-23 11:49:25,704 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:49:25,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:49:26,388 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-23 11:49:26,388 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat