./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.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_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/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_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/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_d13306b2-5cf7-48ee-a6a4-3f98355bd293/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 c031a4ce44fce05276ee0c322906dbff86776176e55e116d257d2b83e85a253c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:36:28,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:36:28,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:36:28,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:36:28,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:36:28,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:36:28,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:36:28,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:36:28,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:36:28,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:36:28,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:36:28,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:36:28,778 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:36:28,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:36:28,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:36:28,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:36:28,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:36:28,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:36:28,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:36:28,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:36:28,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:36:28,784 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:36:28,784 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:36:28,784 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_d13306b2-5cf7-48ee-a6a4-3f98355bd293/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 -> c031a4ce44fce05276ee0c322906dbff86776176e55e116d257d2b83e85a253c [2024-11-23 11:36:29,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:36:29,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:36:29,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:36:29,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:36:29,177 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:36:29,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c [2024-11-23 11:36:32,383 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/data/b5519f27c/e50f18c8a3a24080814e1192a672df80/FLAG411c0a26d [2024-11-23 11:36:32,698 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:36:32,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c [2024-11-23 11:36:32,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/data/b5519f27c/e50f18c8a3a24080814e1192a672df80/FLAG411c0a26d [2024-11-23 11:36:32,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/data/b5519f27c/e50f18c8a3a24080814e1192a672df80 [2024-11-23 11:36:32,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:36:32,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:36:32,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:36:32,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:36:32,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:36:32,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:36:32" (1/1) ... [2024-11-23 11:36:32,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516f1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:32, skipping insertion in model container [2024-11-23 11:36:32,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:36:32" (1/1) ... [2024-11-23 11:36:32,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:36:33,018 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_d13306b2-5cf7-48ee-a6a4-3f98355bd293/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c[4403,4416] [2024-11-23 11:36:33,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:36:33,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:36:33,095 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_d13306b2-5cf7-48ee-a6a4-3f98355bd293/sv-benchmarks/c/weaver/popl20-more-buffer-series3.wvr.c[4403,4416] [2024-11-23 11:36:33,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:36:33,126 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:36:33,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33 WrapperNode [2024-11-23 11:36:33,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:36:33,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:36:33,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:36:33,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:36:33,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,193 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 333 [2024-11-23 11:36:33,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:36:33,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:36:33,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:36:33,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:36:33,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:36:33,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:36:33,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:36:33,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:36:33,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (1/1) ... [2024-11-23 11:36:33,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:36:33,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:33,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:36:33,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:36:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 11:36:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 11:36:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 11:36:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-23 11:36:33,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 11:36:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 11:36:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:36:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:36:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:36:33,335 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 11:36:33,472 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:36:33,474 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:36:34,135 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:36:34,135 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:36:34,743 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:36:34,743 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-23 11:36:34,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:34 BoogieIcfgContainer [2024-11-23 11:36:34,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:36:34,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:36:34,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:36:34,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:36:34,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:36:32" (1/3) ... [2024-11-23 11:36:34,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d01d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:36:34, skipping insertion in model container [2024-11-23 11:36:34,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:33" (2/3) ... [2024-11-23 11:36:34,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d01d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:36:34, skipping insertion in model container [2024-11-23 11:36:34,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:34" (3/3) ... [2024-11-23 11:36:34,756 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series3.wvr.c [2024-11-23 11:36:34,773 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:36:34,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-series3.wvr.c that has 5 procedures, 46 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-23 11:36:34,775 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:36:34,875 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-23 11:36:34,941 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:36:34,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:36:34,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:34,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:36:34,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:36:35,057 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:36:35,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-23 11:36:35,090 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;@68b87c87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:36:35,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-23 11:36:37,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:36:37,345 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:37,345 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #1 [2024-11-23 11:36:37,345 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:36:37,345 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:37,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash 942811505, now seen corresponding path program 1 times [2024-11-23 11:36:37,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:37,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502546721] [2024-11-23 11:36:37,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:39,405 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 11:36:39,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:39,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502546721] [2024-11-23 11:36:39,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502546721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:36:39,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:36:39,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:36:39,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246380313] [2024-11-23 11:36:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:36:39,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 11:36:39,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:39,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 11:36:39,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 11:36:39,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:39,448 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:39,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 11:36:39,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:39,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 11:36:39,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:36:39,740 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:39,740 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #2 [2024-11-23 11:36:39,741 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:39,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:39,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:39,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-23 11:36:39,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:39,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-23 11:36:39,763 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:39,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-23 11:36:39,763 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:39,763 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:36:39,763 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:39,764 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-23 11:36:39,764 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:39,764 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2024-11-23 11:36:39,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:39,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1327686408, now seen corresponding path program 1 times [2024-11-23 11:36:39,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:39,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687971267] [2024-11-23 11:36:39,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:39,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:40,312 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 11:36:40,312 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:40,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687971267] [2024-11-23 11:36:40,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687971267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:36:40,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:36:40,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 11:36:40,314 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 65. Constructing proof automaton... [2024-11-23 11:36:40,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:36:40,316 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-23 11:36:40,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:36:40,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-23 11:36:40,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:36:40,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:36:40,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:40,320 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:40,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 11:36:40,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:40,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:40,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:40,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 11:36:40,538 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:36:40,538 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:40,538 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #3 [2024-11-23 11:36:40,538 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:40,538 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:40,538 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:40,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-23 11:36:40,539 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:40,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-23 11:36:40,539 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:40,539 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:36:40,540 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:40,540 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-23 11:36:40,540 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:40,540 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:36:40,540 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:40,540 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 66 [2024-11-23 11:36:40,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash 298794351, now seen corresponding path program 1 times [2024-11-23 11:36:40,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:40,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197535251] [2024-11-23 11:36:40,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:40,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:41,127 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197535251] [2024-11-23 11:36:41,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197535251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:41,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1914855950] [2024-11-23 11:36:41,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:41,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:41,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:41,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:41,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1914855950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:41,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:41,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:36:41,499 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:41,499 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-23 11:36:41,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash -551906298, now seen corresponding path program 1 times [2024-11-23 11:36:41,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:41,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365469776] [2024-11-23 11:36:41,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:41,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:41,984 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:41,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365469776] [2024-11-23 11:36:41,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365469776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:41,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2011098641] [2024-11-23 11:36:41,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:41,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:42,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:42,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:42,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2011098641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:42,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:42,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:36:42,282 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:42,283 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-23 11:36:42,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 70772142, now seen corresponding path program 1 times [2024-11-23 11:36:42,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:42,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404404690] [2024-11-23 11:36:42,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:42,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:43,042 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404404690] [2024-11-23 11:36:43,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404404690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:43,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2071344213] [2024-11-23 11:36:43,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:43,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:43,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:43,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:43,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2071344213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:43,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:43,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:36:43,310 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:43,311 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 86 [2024-11-23 11:36:43,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1772833649, now seen corresponding path program 1 times [2024-11-23 11:36:43,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100196591] [2024-11-23 11:36:43,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:43,882 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:43,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100196591] [2024-11-23 11:36:43,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100196591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:43,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1759139768] [2024-11-23 11:36:43,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:43,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:43,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:43,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:44,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1759139768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:44,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:44,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:36:44,141 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:44,142 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 97 is hopeless, skipping. [2024-11-23 11:36:44,142 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2024-11-23 11:36:44,142 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 107 is hopeless, skipping. [2024-11-23 11:36:44,142 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 115 [2024-11-23 11:36:44,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1734575919, now seen corresponding path program 1 times [2024-11-23 11:36:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241294336] [2024-11-23 11:36:44,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:44,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:44,836 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:44,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241294336] [2024-11-23 11:36:44,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241294336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:44,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1812576139] [2024-11-23 11:36:44,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:44,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:44,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:44,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:45,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1812576139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:45,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:45,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:36:45,137 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:45,137 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2024-11-23 11:36:45,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:45,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1133332980, now seen corresponding path program 1 times [2024-11-23 11:36:45,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:45,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700202440] [2024-11-23 11:36:45,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:45,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:45,929 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700202440] [2024-11-23 11:36:45,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700202440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1361318385] [2024-11-23 11:36:45,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:46,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:46,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:46,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1361318385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:46,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:46,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-23 11:36:46,224 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:46,224 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 145 is hopeless, skipping. [2024-11-23 11:36:46,224 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 149 is hopeless, skipping. [2024-11-23 11:36:46,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2024-11-23 11:36:46,228 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:46,228 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2024-11-23 11:36:46,228 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:46,228 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:36:46,228 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:46,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:46,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1813298445, now seen corresponding path program 1 times [2024-11-23 11:36:46,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:46,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125179973] [2024-11-23 11:36:46,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:46,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:47,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:47,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:47,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125179973] [2024-11-23 11:36:47,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125179973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:47,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41015255] [2024-11-23 11:36:47,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:47,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:47,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:47,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:47,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 11:36:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:47,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:47,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:47,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:47,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41015255] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:47,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:47,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-23 11:36:47,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576268177] [2024-11-23 11:36:47,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:47,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 11:36:47,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:47,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 11:36:47,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-23 11:36:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:47,775 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:47,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 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 11:36:47,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:47,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:47,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:48,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 11:36:48,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14 [2024-11-23 11:36:48,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:36:48,248 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:48,249 INFO L139 ounterexampleChecker]: Examining path program with hash 1498975703, occurence #4 [2024-11-23 11:36:48,249 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:36:48,249 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:36:48,249 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:48,249 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-11-23 11:36:48,250 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:48,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:36:48,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:48,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-23 11:36:48,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:48,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-11-23 11:36:48,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:48,250 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:36:48,250 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:48,252 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-11-23 11:36:48,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1788877711, now seen corresponding path program 1 times [2024-11-23 11:36:48,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:48,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781141271] [2024-11-23 11:36:48,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:48,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:48,726 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:48,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781141271] [2024-11-23 11:36:48,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781141271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:48,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2139121182] [2024-11-23 11:36:48,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:48,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:36:48,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:49,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2139121182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:49,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:49,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-23 11:36:49,011 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:49,012 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-23 11:36:49,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:49,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1567228234, now seen corresponding path program 1 times [2024-11-23 11:36:49,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:49,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921708882] [2024-11-23 11:36:49,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:49,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:49,374 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:49,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921708882] [2024-11-23 11:36:49,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921708882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:49,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1635364012] [2024-11-23 11:36:49,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:49,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:49,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:49,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:49,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1635364012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:49,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:49,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-23 11:36:49,650 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:49,650 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-23 11:36:49,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1339432654, now seen corresponding path program 1 times [2024-11-23 11:36:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277100635] [2024-11-23 11:36:49,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:49,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:50,229 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:50,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277100635] [2024-11-23 11:36:50,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277100635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [999229437] [2024-11-23 11:36:50,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:50,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:50,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 11:36:50,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 11:36:50,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [999229437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:50,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:50,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-23 11:36:50,656 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:50,656 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2024-11-23 11:36:50,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:50,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1883335023, now seen corresponding path program 1 times [2024-11-23 11:36:50,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:50,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960796849] [2024-11-23 11:36:50,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:50,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:51,139 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:51,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960796849] [2024-11-23 11:36:51,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960796849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:51,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1906368470] [2024-11-23 11:36:51,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:51,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:51,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:51,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1906368470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:51,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:51,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-23 11:36:51,426 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:51,427 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 98 is hopeless, skipping. [2024-11-23 11:36:51,427 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 99 is hopeless, skipping. [2024-11-23 11:36:51,427 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 108 is hopeless, skipping. [2024-11-23 11:36:51,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 116 [2024-11-23 11:36:51,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:51,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1575583475, now seen corresponding path program 1 times [2024-11-23 11:36:51,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:51,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225135555] [2024-11-23 11:36:51,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:51,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:51,958 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:51,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225135555] [2024-11-23 11:36:51,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225135555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:51,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1985220022] [2024-11-23 11:36:51,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:52,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:52,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:52,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1985220022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:52,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:52,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-23 11:36:52,240 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:52,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 125 [2024-11-23 11:36:52,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:52,360 INFO L85 PathProgramCache]: Analyzing trace with hash 46352044, now seen corresponding path program 1 times [2024-11-23 11:36:52,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:36:52,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772122758] [2024-11-23 11:36:52,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:52,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:52,874 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:36:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772122758] [2024-11-23 11:36:52,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772122758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1226661977] [2024-11-23 11:36:52,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:36:52,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:36:52,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 11:36:52,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 11:36:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1226661977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:53,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:36:53,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-23 11:36:53,166 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:36:53,166 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 146 is hopeless, skipping. [2024-11-23 11:36:53,167 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 150 is hopeless, skipping. [2024-11-23 11:36:53,167 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 162 [2024-11-23 11:36:53,167 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:36:53,167 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 164 [2024-11-23 11:36:53,167 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:36:53,167 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:36:53,167 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:53,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:53,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1665379713, now seen corresponding path program 2 times [2024-11-23 11:36:53,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:53,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573397696] [2024-11-23 11:36:53,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:36:53,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:53,258 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 11:36:53,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 11:36:53,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:53,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573397696] [2024-11-23 11:36:53,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573397696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:36:53,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:36:53,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 11:36:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815156618] [2024-11-23 11:36:53,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:36:53,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:36:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:53,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:36:53,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:36:53,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:53,769 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:53,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 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 11:36:53,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:53,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:53,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:53,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:54,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable15,SelfDestructingSolverStorable26,SelfDestructingSolverStorable16,SelfDestructingSolverStorable27,SelfDestructingSolverStorable17 [2024-11-23 11:36:54,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:36:54,073 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:36:54,073 INFO L139 ounterexampleChecker]: Examining path program with hash -1418996231, occurence #1 [2024-11-23 11:36:54,073 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:36:54,073 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:36:54,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:36:54,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2091741044, now seen corresponding path program 3 times [2024-11-23 11:36:54,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:36:54,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819140615] [2024-11-23 11:36:54,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:36:54,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:36:54,991 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:36:54,991 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-23 11:36:56,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:36:56,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819140615] [2024-11-23 11:36:56,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819140615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:36:56,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948168814] [2024-11-23 11:36:56,208 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:36:56,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:36:56,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:36:56,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:36:56,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 11:36:56,535 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-23 11:36:56,536 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:36:56,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:36:56,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:36:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-23 11:36:57,763 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:36:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-23 11:36:58,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948168814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:36:58,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:36:58,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 48 [2024-11-23 11:36:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786248975] [2024-11-23 11:36:58,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:36:58,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-23 11:36:58,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:36:58,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-23 11:36:58,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=1802, Unknown=0, NotChecked=0, Total=2256 [2024-11-23 11:36:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:58,919 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:36:58,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 8.166666666666666) internal successors, (392), 48 states have internal predecessors, (392), 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 11:36:58,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:58,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:58,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:58,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:58,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:36:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:36:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:36:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:36:59,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 11:37:00,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:00,185 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:00,185 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:00,186 INFO L139 ounterexampleChecker]: Examining path program with hash -1418996231, occurence #2 [2024-11-23 11:37:00,186 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:37:00,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:37:00,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:00,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:37:00,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:00,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-23 11:37:00,186 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:00,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-23 11:37:00,186 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:00,187 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-23 11:37:00,187 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:00,187 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-23 11:37:00,187 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:00,187 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 119 [2024-11-23 11:37:00,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash 515393159, now seen corresponding path program 1 times [2024-11-23 11:37:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:00,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209498196] [2024-11-23 11:37:00,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-23 11:37:00,739 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:00,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209498196] [2024-11-23 11:37:00,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209498196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:00,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [391367609] [2024-11-23 11:37:00,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:00,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:00,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:37:00,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-23 11:37:01,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [391367609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:01,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:01,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-23 11:37:01,148 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:01,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2024-11-23 11:37:01,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:01,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1202684289, now seen corresponding path program 1 times [2024-11-23 11:37:01,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:01,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875704648] [2024-11-23 11:37:01,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:01,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-23 11:37:01,777 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:01,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875704648] [2024-11-23 11:37:01,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875704648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:01,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1001381248] [2024-11-23 11:37:01,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:01,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:01,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:37:01,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:02,138 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-23 11:37:02,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1001381248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:02,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:02,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-23 11:37:02,139 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:02,139 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2024-11-23 11:37:02,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:02,204 INFO L85 PathProgramCache]: Analyzing trace with hash 503517606, now seen corresponding path program 1 times [2024-11-23 11:37:02,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:02,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542833048] [2024-11-23 11:37:02,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-23 11:37:02,743 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:02,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542833048] [2024-11-23 11:37:02,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542833048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:02,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1851967890] [2024-11-23 11:37:02,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:02,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:02,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:37:02,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-23 11:37:03,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1851967890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:03,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:03,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-23 11:37:03,112 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:03,112 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2024-11-23 11:37:03,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:03,186 INFO L85 PathProgramCache]: Analyzing trace with hash -995857826, now seen corresponding path program 1 times [2024-11-23 11:37:03,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:03,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55894881] [2024-11-23 11:37:03,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-23 11:37:03,464 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:03,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55894881] [2024-11-23 11:37:03,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55894881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:37:03,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:37:03,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:37:03,465 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 137. Constructing proof automaton... [2024-11-23 11:37:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:37:03,466 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-23 11:37:03,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 11:37:03,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-23 11:37:03,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:37:03,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:37:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:03,467 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:03,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 11:37:03,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:03,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:03,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:03,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:03,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:03,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:04,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,SelfDestructingSolverStorable30,SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34,SelfDestructingSolverStorable35 [2024-11-23 11:37:04,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:04,221 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:04,221 INFO L139 ounterexampleChecker]: Examining path program with hash -1518297549, occurence #1 [2024-11-23 11:37:04,221 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:04,221 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:04,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:04,221 INFO L85 PathProgramCache]: Analyzing trace with hash 20320912, now seen corresponding path program 4 times [2024-11-23 11:37:04,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:04,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403879531] [2024-11-23 11:37:04,222 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:37:04,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:04,265 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:37:04,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:04,541 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 11:37:04,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:04,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403879531] [2024-11-23 11:37:04,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403879531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:04,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135029084] [2024-11-23 11:37:04,542 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:37:04,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:04,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:04,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 11:37:04,730 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:37:04,731 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:04,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 11:37:04,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 11:37:04,966 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:37:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 11:37:05,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135029084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:37:05,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:37:05,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-23 11:37:05,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477679711] [2024-11-23 11:37:05,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:37:05,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 11:37:05,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:05,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 11:37:05,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-23 11:37:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:05,183 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:05,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.285714285714286) internal successors, (132), 21 states have internal predecessors, (132), 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 11:37:05,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:05,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:05,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:05,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 11:37:05,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:05,633 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:05,634 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:05,634 INFO L139 ounterexampleChecker]: Examining path program with hash -1518297549, occurence #2 [2024-11-23 11:37:05,634 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:37:05,634 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:37:05,634 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:05,634 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:37:05,635 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:05,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-23 11:37:05,635 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:05,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-11-23 11:37:05,635 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:05,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-23 11:37:05,635 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:05,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-23 11:37:05,635 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:05,635 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 78 [2024-11-23 11:37:05,636 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:05,636 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-23 11:37:05,636 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:05,636 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:37:05,636 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:05,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:05,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1689834176, now seen corresponding path program 5 times [2024-11-23 11:37:05,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:05,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964478277] [2024-11-23 11:37:05,637 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:37:05,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:05,697 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-23 11:37:05,697 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:06,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:06,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964478277] [2024-11-23 11:37:06,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964478277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:06,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818774013] [2024-11-23 11:37:06,103 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:37:06,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:06,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:06,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:06,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 11:37:06,423 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-23 11:37:06,423 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:06,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 11:37:06,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:06,633 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:37:06,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818774013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:37:06,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:37:06,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-23 11:37:06,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725968373] [2024-11-23 11:37:06,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:37:06,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 11:37:06,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:06,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 11:37:06,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-23 11:37:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:06,635 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:06,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:37:06,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:06,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:06,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:06,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:06,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 11:37:07,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:07,179 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:07,179 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:07,179 INFO L139 ounterexampleChecker]: Examining path program with hash -1518297549, occurence #3 [2024-11-23 11:37:07,179 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:37:07,179 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:37:07,179 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:07,179 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:37:07,179 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:07,180 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-23 11:37:07,180 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:07,180 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2024-11-23 11:37:07,180 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:07,180 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-23 11:37:07,180 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:07,180 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-23 11:37:07,180 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:07,180 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 79 [2024-11-23 11:37:07,180 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:07,180 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 80 [2024-11-23 11:37:07,180 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:07,180 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:37:07,180 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:07,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1600486512, now seen corresponding path program 1 times [2024-11-23 11:37:07,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:07,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453524539] [2024-11-23 11:37:07,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:07,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:07,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453524539] [2024-11-23 11:37:07,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453524539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:07,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207513855] [2024-11-23 11:37:07,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:07,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:07,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:07,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:07,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 11:37:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:08,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:08,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:08,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:37:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:08,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207513855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:37:08,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:37:08,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2024-11-23 11:37:08,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120324106] [2024-11-23 11:37:08,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:37:08,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-23 11:37:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:08,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-23 11:37:08,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-11-23 11:37:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:08,998 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:08,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.2) internal successors, (186), 29 states have internal predecessors, (186), 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 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:08,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:10,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 11:37:10,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:10,319 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:10,319 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:10,320 INFO L139 ounterexampleChecker]: Examining path program with hash -185236610, occurence #1 [2024-11-23 11:37:10,320 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:10,321 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:10,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:10,321 INFO L85 PathProgramCache]: Analyzing trace with hash 961781301, now seen corresponding path program 2 times [2024-11-23 11:37:10,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:10,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172941311] [2024-11-23 11:37:10,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:37:10,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:10,368 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 11:37:10,369 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:10,947 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-23 11:37:10,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:10,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172941311] [2024-11-23 11:37:10,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172941311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:37:10,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:37:10,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 11:37:10,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711473968] [2024-11-23 11:37:10,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:37:10,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 11:37:10,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:10,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 11:37:10,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-23 11:37:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:10,950 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:10,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 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 11:37:10,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:10,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:13,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-23 11:37:13,451 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:13,451 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:13,452 INFO L139 ounterexampleChecker]: Examining path program with hash -357210952, occurence #1 [2024-11-23 11:37:13,452 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:13,452 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:13,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:13,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1690212541, now seen corresponding path program 3 times [2024-11-23 11:37:13,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:13,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170259695] [2024-11-23 11:37:13,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:37:13,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:14,324 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 11:37:14,324 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 37 proven. 53 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-11-23 11:37:15,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:15,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170259695] [2024-11-23 11:37:15,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170259695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:15,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506172263] [2024-11-23 11:37:15,676 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:37:15,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:15,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:15,680 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:15,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 11:37:16,138 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 11:37:16,138 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:16,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 11:37:16,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 79 proven. 13 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-23 11:37:16,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:37:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 50 proven. 42 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-11-23 11:37:17,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506172263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:37:17,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:37:17,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2024-11-23 11:37:17,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355356957] [2024-11-23 11:37:17,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:37:17,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-23 11:37:17,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:17,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-23 11:37:17,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2024-11-23 11:37:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:17,515 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:17,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.580645161290323) internal successors, (235), 31 states have internal predecessors, (235), 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 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:17,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:17,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-23 11:37:18,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:18,062 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:18,062 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:18,062 INFO L139 ounterexampleChecker]: Examining path program with hash -357210952, occurence #2 [2024-11-23 11:37:18,062 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:37:18,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:37:18,063 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-23 11:37:18,063 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-23 11:37:18,063 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-23 11:37:18,063 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-23 11:37:18,063 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:18,063 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2024-11-23 11:37:18,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:18,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1125563762, now seen corresponding path program 1 times [2024-11-23 11:37:18,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:18,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69677750] [2024-11-23 11:37:18,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:18,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:18,938 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:18,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69677750] [2024-11-23 11:37:18,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69677750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:18,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1907680337] [2024-11-23 11:37:18,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:18,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:19,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:19,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 11:37:19,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1907680337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:19,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:19,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-11-23 11:37:19,748 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:19,748 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 231 [2024-11-23 11:37:19,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:19,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1019325644, now seen corresponding path program 1 times [2024-11-23 11:37:19,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:19,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46567230] [2024-11-23 11:37:19,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:19,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 44 proven. 227 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-23 11:37:20,979 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:20,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46567230] [2024-11-23 11:37:20,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46567230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:20,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1386803000] [2024-11-23 11:37:20,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:20,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:21,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:21,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 242 proven. 29 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-23 11:37:21,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1386803000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:21,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:21,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-11-23 11:37:21,957 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:21,958 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 232 is hopeless, skipping. [2024-11-23 11:37:21,958 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 252 is hopeless, skipping. [2024-11-23 11:37:21,958 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 254 [2024-11-23 11:37:21,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:21,984 INFO L85 PathProgramCache]: Analyzing trace with hash -784699225, now seen corresponding path program 1 times [2024-11-23 11:37:21,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:21,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042788871] [2024-11-23 11:37:21,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:21,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 14 proven. 63 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-23 11:37:23,744 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042788871] [2024-11-23 11:37:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042788871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [159317244] [2024-11-23 11:37:23,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:23,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:23,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:37:23,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 103 proven. 21 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-23 11:37:24,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [159317244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:24,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:24,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2024-11-23 11:37:24,684 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:24,684 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 261 [2024-11-23 11:37:24,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash 36147570, now seen corresponding path program 1 times [2024-11-23 11:37:24,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:24,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488918073] [2024-11-23 11:37:24,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:24,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-11-23 11:37:26,587 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488918073] [2024-11-23 11:37:26,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488918073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:26,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [683172986] [2024-11-23 11:37:26,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:26,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:26,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:37:26,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 107 proven. 21 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-23 11:37:27,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [683172986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:27,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:27,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2024-11-23 11:37:27,645 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:27,645 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2024-11-23 11:37:27,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash 818044016, now seen corresponding path program 1 times [2024-11-23 11:37:27,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:27,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250521629] [2024-11-23 11:37:27,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:27,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:28,998 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 22 proven. 49 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-23 11:37:28,998 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:28,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250521629] [2024-11-23 11:37:28,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250521629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:28,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [653351669] [2024-11-23 11:37:28,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:28,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:29,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 11:37:29,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-23 11:37:29,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [653351669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:29,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:29,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-23 11:37:29,995 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:29,995 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 281 [2024-11-23 11:37:30,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:30,066 INFO L85 PathProgramCache]: Analyzing trace with hash 698950730, now seen corresponding path program 1 times [2024-11-23 11:37:30,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:30,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914055478] [2024-11-23 11:37:30,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:30,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 22 proven. 49 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-23 11:37:31,594 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:31,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914055478] [2024-11-23 11:37:31,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914055478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:31,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2089441654] [2024-11-23 11:37:31,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:31,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:31,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 11:37:31,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-23 11:37:32,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2089441654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:32,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:32,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-23 11:37:32,579 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:32,579 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 296 is hopeless, skipping. [2024-11-23 11:37:32,579 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 309 is hopeless, skipping. [2024-11-23 11:37:32,579 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 311 is hopeless, skipping. [2024-11-23 11:37:32,580 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 318 is hopeless, skipping. [2024-11-23 11:37:32,580 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 331 is hopeless, skipping. [2024-11-23 11:37:32,580 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 333 [2024-11-23 11:37:32,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 925925929, now seen corresponding path program 1 times [2024-11-23 11:37:32,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:32,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296841977] [2024-11-23 11:37:32,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:32,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 2 proven. 68 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-11-23 11:37:34,043 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:34,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296841977] [2024-11-23 11:37:34,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296841977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:34,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1339047550] [2024-11-23 11:37:34,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:34,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:34,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:34,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 49 proven. 21 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-11-23 11:37:34,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1339047550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:34,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:34,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2024-11-23 11:37:34,909 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:34,909 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 337 [2024-11-23 11:37:34,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1037854681, now seen corresponding path program 1 times [2024-11-23 11:37:34,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:34,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569530134] [2024-11-23 11:37:34,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 61 proven. 49 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-11-23 11:37:36,416 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569530134] [2024-11-23 11:37:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569530134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1298077075] [2024-11-23 11:37:36,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:36,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:36,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:36,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 85 proven. 21 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-11-23 11:37:37,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1298077075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:37,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:37,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-23 11:37:37,870 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:37,870 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 353 [2024-11-23 11:37:37,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:37,938 INFO L85 PathProgramCache]: Analyzing trace with hash 475771813, now seen corresponding path program 1 times [2024-11-23 11:37:37,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:37,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877783468] [2024-11-23 11:37:37,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:37,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 67 proven. 49 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2024-11-23 11:37:39,476 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:39,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877783468] [2024-11-23 11:37:39,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877783468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:39,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [448850150] [2024-11-23 11:37:39,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:39,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:39,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:39,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 61 proven. 23 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-11-23 11:37:40,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [448850150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:40,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:37:40,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2024-11-23 11:37:40,384 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:37:40,384 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 374 is hopeless, skipping. [2024-11-23 11:37:40,384 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 387 is hopeless, skipping. [2024-11-23 11:37:40,384 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 389 is hopeless, skipping. [2024-11-23 11:37:40,385 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 408 is hopeless, skipping. [2024-11-23 11:37:40,385 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 411 is hopeless, skipping. [2024-11-23 11:37:40,385 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 431 is hopeless, skipping. [2024-11-23 11:37:40,385 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 441 is hopeless, skipping. [2024-11-23 11:37:40,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 451 [2024-11-23 11:37:40,385 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:40,385 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 452 [2024-11-23 11:37:40,385 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:40,385 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:37:40,385 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:40,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:40,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1030749037, now seen corresponding path program 4 times [2024-11-23 11:37:40,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:40,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13460163] [2024-11-23 11:37:40,386 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:37:40,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:40,938 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:37:40,938 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 488 proven. 35 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-23 11:37:44,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:44,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13460163] [2024-11-23 11:37:44,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13460163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:44,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405807761] [2024-11-23 11:37:44,219 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:37:44,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:44,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:44,220 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:44,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 11:37:44,857 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:37:44,857 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:44,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 11:37:44,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2024-11-23 11:37:45,029 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 11:37:45,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405807761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:37:45,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 11:37:45,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2024-11-23 11:37:45,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794408822] [2024-11-23 11:37:45,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:37:45,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 11:37:45,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:45,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:37:45,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=893, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 11:37:45,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:45,033 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:45,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:37:45,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:45,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:45,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 11:37:45,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,SelfDestructingSolverStorable51,SelfDestructingSolverStorable41,SelfDestructingSolverStorable52,SelfDestructingSolverStorable42,SelfDestructingSolverStorable53,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43,SelfDestructingSolverStorable54,SelfDestructingSolverStorable44,SelfDestructingSolverStorable55,SelfDestructingSolverStorable45,SelfDestructingSolverStorable56,SelfDestructingSolverStorable46,SelfDestructingSolverStorable57,SelfDestructingSolverStorable47,SelfDestructingSolverStorable58,SelfDestructingSolverStorable48,SelfDestructingSolverStorable59,SelfDestructingSolverStorable49 [2024-11-23 11:37:45,854 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:45,854 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:45,854 INFO L139 ounterexampleChecker]: Examining path program with hash 1166359728, occurence #1 [2024-11-23 11:37:45,854 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:45,854 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:45,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:45,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1264055873, now seen corresponding path program 5 times [2024-11-23 11:37:45,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:45,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137442266] [2024-11-23 11:37:45,855 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:37:45,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:45,928 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-23 11:37:45,928 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 11:37:46,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:46,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137442266] [2024-11-23 11:37:46,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137442266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:46,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105557672] [2024-11-23 11:37:46,502 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:37:46,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:46,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:46,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:46,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 11:37:47,306 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-23 11:37:47,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:47,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 11:37:47,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 11:37:47,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:37:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-23 11:37:47,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105557672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:37:47,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:37:47,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 29 [2024-11-23 11:37:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922627467] [2024-11-23 11:37:47,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:37:47,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-23 11:37:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:47,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-23 11:37:47,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=639, Unknown=0, NotChecked=0, Total=870 [2024-11-23 11:37:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:47,896 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:47,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.7) internal successors, (171), 29 states have internal predecessors, (171), 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 11:37:47,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:47,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:47,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:47,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:48,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:48,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 11:37:48,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:48,560 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:48,560 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:48,560 INFO L139 ounterexampleChecker]: Examining path program with hash 1166359728, occurence #2 [2024-11-23 11:37:48,560 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:37:48,560 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:37:48,560 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:48,560 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-23 11:37:48,564 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:48,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-23 11:37:48,564 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:48,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-23 11:37:48,564 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:48,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-23 11:37:48,564 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:48,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:37:48,564 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:37:48,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 69 [2024-11-23 11:37:48,564 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:37:48,564 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2024-11-23 11:37:48,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:48,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2109877223, now seen corresponding path program 1 times [2024-11-23 11:37:48,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:37:48,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389384479] [2024-11-23 11:37:48,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:37:48,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-23 11:37:48,758 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:37:48,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389384479] [2024-11-23 11:37:48,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389384479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:37:48,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:37:48,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:37:48,759 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 71. Constructing proof automaton... [2024-11-23 11:37:48,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:37:48,759 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2024-11-23 11:37:48,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 11:37:48,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2024-11-23 11:37:48,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 11:37:48,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 11:37:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:48,759 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:48,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-23 11:37:49,074 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:49,074 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:49,074 INFO L139 ounterexampleChecker]: Examining path program with hash -107339187, occurence #1 [2024-11-23 11:37:49,074 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:49,074 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:49,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:49,074 INFO L85 PathProgramCache]: Analyzing trace with hash -238730754, now seen corresponding path program 6 times [2024-11-23 11:37:49,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:49,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564231027] [2024-11-23 11:37:49,075 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 11:37:49,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:49,104 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-23 11:37:49,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-23 11:37:49,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:49,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564231027] [2024-11-23 11:37:49,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564231027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:37:49,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:37:49,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 11:37:49,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916015385] [2024-11-23 11:37:49,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:37:49,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 11:37:49,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:49,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 11:37:49,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 11:37:49,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:49,316 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:49,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:49,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:49,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-23 11:37:49,560 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:49,560 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:49,560 INFO L139 ounterexampleChecker]: Examining path program with hash 524195310, occurence #1 [2024-11-23 11:37:49,560 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:49,560 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:49,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:49,561 INFO L85 PathProgramCache]: Analyzing trace with hash 211777456, now seen corresponding path program 7 times [2024-11-23 11:37:49,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:49,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154196930] [2024-11-23 11:37:49,561 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:37:49,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-23 11:37:50,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:50,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154196930] [2024-11-23 11:37:50,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154196930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:50,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782573362] [2024-11-23 11:37:50,041 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 11:37:50,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:50,043 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:50,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 11:37:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:37:50,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 11:37:50,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 11:37:50,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:37:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-23 11:37:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782573362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:37:51,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:37:51,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2024-11-23 11:37:51,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932579551] [2024-11-23 11:37:51,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:37:51,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-23 11:37:51,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:51,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-23 11:37:51,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 11:37:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:51,093 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:51,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.722222222222222) internal successors, (170), 35 states have internal predecessors, (170), 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 11:37:51,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:51,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:51,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:37:54,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-23 11:37:54,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-23 11:37:54,359 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:37:54,360 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:37:54,360 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #1 [2024-11-23 11:37:54,360 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:37:54,360 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:37:54,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:37:54,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1562033500, now seen corresponding path program 8 times [2024-11-23 11:37:54,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:37:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524697649] [2024-11-23 11:37:54,361 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:37:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:37:55,026 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:37:55,026 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 15 proven. 84 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2024-11-23 11:37:57,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:37:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524697649] [2024-11-23 11:37:57,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524697649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:37:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538737470] [2024-11-23 11:37:57,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 11:37:57,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:37:57,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:37:57,097 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:37:57,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 11:37:57,781 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 11:37:57,781 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:37:57,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 11:37:57,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:37:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 914 proven. 25 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2024-11-23 11:37:58,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:37:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 883 proven. 56 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2024-11-23 11:37:59,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538737470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:37:59,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:37:59,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 46 [2024-11-23 11:37:59,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467500425] [2024-11-23 11:37:59,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:37:59,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-23 11:37:59,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:37:59,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-23 11:37:59,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 11:37:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:59,202 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:37:59,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 7.1521739130434785) internal successors, (329), 46 states have internal predecessors, (329), 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 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:37:59,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:37:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:37:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 11:37:59,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-23 11:38:00,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-23 11:38:00,021 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:38:00,021 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:38:00,022 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #2 [2024-11-23 11:38:00,022 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:38:00,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:38:00,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:00,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-23 11:38:00,022 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:00,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-23 11:38:00,022 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:00,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-23 11:38:00,022 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:00,022 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-23 11:38:00,023 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:00,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-23 11:38:00,023 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:00,023 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 179 [2024-11-23 11:38:00,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:00,077 INFO L85 PathProgramCache]: Analyzing trace with hash -420979542, now seen corresponding path program 1 times [2024-11-23 11:38:00,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:00,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956650156] [2024-11-23 11:38:00,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:00,812 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 219 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-23 11:38:00,812 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956650156] [2024-11-23 11:38:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956650156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1970561227] [2024-11-23 11:38:00,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:00,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:00,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:38:00,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 211 proven. 42 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-23 11:38:01,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1970561227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:01,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:01,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-23 11:38:01,706 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:01,706 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 184 [2024-11-23 11:38:01,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash 138762978, now seen corresponding path program 1 times [2024-11-23 11:38:01,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:01,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964132691] [2024-11-23 11:38:01,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:01,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 49 proven. 205 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-23 11:38:02,593 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964132691] [2024-11-23 11:38:02,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964132691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [2015814224] [2024-11-23 11:38:02,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:02,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:02,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 11:38:02,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 226 proven. 28 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-23 11:38:03,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [2015814224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:03,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:03,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-11-23 11:38:03,300 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:03,300 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 289 [2024-11-23 11:38:03,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:03,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2095327473, now seen corresponding path program 1 times [2024-11-23 11:38:03,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:03,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827126898] [2024-11-23 11:38:03,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:03,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 810 proven. 179 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 11:38:05,630 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:05,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827126898] [2024-11-23 11:38:05,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827126898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:05,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [903964016] [2024-11-23 11:38:05,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:05,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 11:38:05,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 960 proven. 28 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-23 11:38:07,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [903964016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:07,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:07,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 52 [2024-11-23 11:38:07,407 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:07,407 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 388 [2024-11-23 11:38:07,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash 250480672, now seen corresponding path program 1 times [2024-11-23 11:38:07,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:07,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635097281] [2024-11-23 11:38:07,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:07,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 825 proven. 164 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-23 11:38:09,286 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:09,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635097281] [2024-11-23 11:38:09,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635097281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:09,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1137213697] [2024-11-23 11:38:09,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:09,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:09,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:38:09,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 877 proven. 112 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-23 11:38:10,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1137213697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:10,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:10,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-23 11:38:10,390 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:10,390 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 407 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 410 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 413 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 435 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 436 [2024-11-23 11:38:10,391 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:10,391 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 438 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 465 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 478 is hopeless, skipping. [2024-11-23 11:38:10,391 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 480 [2024-11-23 11:38:10,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:10,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1151297665, now seen corresponding path program 1 times [2024-11-23 11:38:10,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:10,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405049378] [2024-11-23 11:38:10,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:10,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1872 backedges. 891 proven. 164 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-23 11:38:12,681 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:12,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405049378] [2024-11-23 11:38:12,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405049378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:12,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [879037894] [2024-11-23 11:38:12,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:12,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:13,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:38:13,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1872 backedges. 943 proven. 112 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-23 11:38:13,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [879037894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:13,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:13,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-23 11:38:13,914 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:13,914 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 507 is hopeless, skipping. [2024-11-23 11:38:13,914 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 524 is hopeless, skipping. [2024-11-23 11:38:13,914 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 537 is hopeless, skipping. [2024-11-23 11:38:13,914 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 549 is hopeless, skipping. [2024-11-23 11:38:13,914 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 551 is hopeless, skipping. [2024-11-23 11:38:13,915 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 578 is hopeless, skipping. [2024-11-23 11:38:13,915 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 592 [2024-11-23 11:38:13,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:13,972 INFO L85 PathProgramCache]: Analyzing trace with hash 89798172, now seen corresponding path program 1 times [2024-11-23 11:38:13,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:13,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574536977] [2024-11-23 11:38:13,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:13,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 906 proven. 164 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-11-23 11:38:17,071 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574536977] [2024-11-23 11:38:17,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574536977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [895901149] [2024-11-23 11:38:17,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:17,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:17,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:38:17,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 958 proven. 112 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2024-11-23 11:38:18,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [895901149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:18,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:18,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-23 11:38:18,644 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:18,644 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 602 is hopeless, skipping. [2024-11-23 11:38:18,644 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 611 [2024-11-23 11:38:18,645 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:18,645 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 613 [2024-11-23 11:38:18,645 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:18,645 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:38:18,645 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:38:18,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash 657960230, now seen corresponding path program 9 times [2024-11-23 11:38:18,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:38:18,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605939915] [2024-11-23 11:38:18,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:38:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:22,139 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-23 11:38:22,139 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:38:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 232 proven. 754 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2024-11-23 11:38:25,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:38:25,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605939915] [2024-11-23 11:38:25,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605939915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:25,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324355207] [2024-11-23 11:38:25,885 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 11:38:25,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:38:25,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:38:25,890 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:38:25,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 11:38:30,352 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-23 11:38:30,353 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:38:30,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 11:38:30,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 78 proven. 28 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-23 11:38:32,246 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:38:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2008 backedges. 42 proven. 64 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-11-23 11:38:34,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324355207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:38:34,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:38:34,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 21, 21] total 74 [2024-11-23 11:38:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854787928] [2024-11-23 11:38:34,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:38:34,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-23 11:38:34,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:38:34,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-23 11:38:34,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1085, Invalid=4465, Unknown=0, NotChecked=0, Total=5550 [2024-11-23 11:38:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:38:34,368 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:38:34,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 6.506666666666667) internal successors, (488), 74 states have internal predecessors, (488), 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 11:38:34,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:34,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:34,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:38:34,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:34,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:38:34,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-11-23 11:38:34,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:38:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 11:38:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:38:35,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-23 11:38:36,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70,SelfDestructingSolverStorable71,SelfDestructingSolverStorable72,SelfDestructingSolverStorable73,SelfDestructingSolverStorable74,SelfDestructingSolverStorable75,SelfDestructingSolverStorable65,SelfDestructingSolverStorable76,SelfDestructingSolverStorable66,SelfDestructingSolverStorable77,SelfDestructingSolverStorable67,SelfDestructingSolverStorable68,SelfDestructingSolverStorable69 [2024-11-23 11:38:36,152 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:38:36,152 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:38:36,153 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #3 [2024-11-23 11:38:36,153 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:38:36,153 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:38:36,153 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:36,153 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-23 11:38:36,153 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:36,154 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-23 11:38:36,154 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:36,154 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-11-23 11:38:36,154 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:36,154 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-23 11:38:36,154 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:36,154 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-23 11:38:36,154 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:36,154 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 181 [2024-11-23 11:38:36,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash 886395648, now seen corresponding path program 1 times [2024-11-23 11:38:36,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:36,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976179555] [2024-11-23 11:38:36,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 34 proven. 219 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-23 11:38:37,019 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976179555] [2024-11-23 11:38:37,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976179555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1949538259] [2024-11-23 11:38:37,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:37,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:37,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 11:38:37,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 211 proven. 42 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-23 11:38:37,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1949538259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:37,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:37,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-23 11:38:37,835 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:37,835 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2024-11-23 11:38:37,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:37,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1019720520, now seen corresponding path program 1 times [2024-11-23 11:38:37,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:37,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853512377] [2024-11-23 11:38:37,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:37,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 49 proven. 205 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-23 11:38:38,904 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:38,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853512377] [2024-11-23 11:38:38,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853512377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:38,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1326033799] [2024-11-23 11:38:38,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:38,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 11:38:38,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 226 proven. 28 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-23 11:38:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1326033799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:39,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:39,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-11-23 11:38:39,695 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:39,695 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 291 [2024-11-23 11:38:39,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash 969551687, now seen corresponding path program 1 times [2024-11-23 11:38:39,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:39,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253608413] [2024-11-23 11:38:39,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:39,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 810 proven. 179 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-23 11:38:41,684 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:41,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253608413] [2024-11-23 11:38:41,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253608413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:41,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [974069842] [2024-11-23 11:38:41,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:41,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:41,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 11:38:41,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 960 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-23 11:38:43,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [974069842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:43,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:43,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 52 [2024-11-23 11:38:43,590 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:43,590 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2024-11-23 11:38:43,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:43,643 INFO L85 PathProgramCache]: Analyzing trace with hash 402282998, now seen corresponding path program 1 times [2024-11-23 11:38:43,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:43,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569909116] [2024-11-23 11:38:43,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:43,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 51 proven. 646 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-23 11:38:45,794 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:45,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569909116] [2024-11-23 11:38:45,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569909116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:45,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1198533511] [2024-11-23 11:38:45,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:46,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 11:38:46,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 624 proven. 73 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-11-23 11:38:47,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1198533511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:47,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:47,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2024-11-23 11:38:47,456 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:47,456 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 409 is hopeless, skipping. [2024-11-23 11:38:47,456 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 412 is hopeless, skipping. [2024-11-23 11:38:47,456 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 415 is hopeless, skipping. [2024-11-23 11:38:47,456 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 437 is hopeless, skipping. [2024-11-23 11:38:47,456 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 438 [2024-11-23 11:38:47,456 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:47,456 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 440 is hopeless, skipping. [2024-11-23 11:38:47,457 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 467 is hopeless, skipping. [2024-11-23 11:38:47,457 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 480 is hopeless, skipping. [2024-11-23 11:38:47,457 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 482 [2024-11-23 11:38:47,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:47,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1670014377, now seen corresponding path program 1 times [2024-11-23 11:38:47,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:47,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613680113] [2024-11-23 11:38:47,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:47,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 63 proven. 604 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2024-11-23 11:38:50,254 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613680113] [2024-11-23 11:38:50,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613680113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:50,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [988930700] [2024-11-23 11:38:50,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:50,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:50,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 11:38:50,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 594 proven. 73 refuted. 0 times theorem prover too weak. 1222 trivial. 0 not checked. [2024-11-23 11:38:52,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [988930700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:52,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:52,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2024-11-23 11:38:52,082 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:52,083 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 509 is hopeless, skipping. [2024-11-23 11:38:52,083 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 526 is hopeless, skipping. [2024-11-23 11:38:52,083 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 539 is hopeless, skipping. [2024-11-23 11:38:52,083 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 551 is hopeless, skipping. [2024-11-23 11:38:52,083 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 553 is hopeless, skipping. [2024-11-23 11:38:52,083 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 580 is hopeless, skipping. [2024-11-23 11:38:52,083 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 594 [2024-11-23 11:38:52,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash 812640242, now seen corresponding path program 1 times [2024-11-23 11:38:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:38:52,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886173191] [2024-11-23 11:38:52,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:52,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 50 proven. 512 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-11-23 11:38:55,513 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:38:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886173191] [2024-11-23 11:38:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886173191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [979472254] [2024-11-23 11:38:55,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:38:55,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:38:55,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 2406 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 11:38:55,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:38:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 513 proven. 49 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2024-11-23 11:38:57,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [979472254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:38:57,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:38:57,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2024-11-23 11:38:57,486 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:38:57,487 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 604 is hopeless, skipping. [2024-11-23 11:38:57,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 613 [2024-11-23 11:38:57,487 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:38:57,487 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 615 [2024-11-23 11:38:57,487 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:38:57,487 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:38:57,487 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:38:57,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:38:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1800040730, now seen corresponding path program 10 times [2024-11-23 11:38:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:38:57,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741384257] [2024-11-23 11:38:57,488 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:38:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:38:58,353 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:38:58,353 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:39:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1819 proven. 73 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-23 11:39:03,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:39:03,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741384257] [2024-11-23 11:39:03,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741384257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:03,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410796234] [2024-11-23 11:39:03,813 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 11:39:03,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:39:03,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:39:03,815 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:39:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 11:39:04,638 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 11:39:04,638 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:39:04,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-23 11:39:04,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1879 proven. 43 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-23 11:39:08,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 11:39:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1804 proven. 118 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-23 11:39:13,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410796234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 11:39:13,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 11:39:13,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 49, 49] total 138 [2024-11-23 11:39:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303177187] [2024-11-23 11:39:13,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 11:39:13,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2024-11-23 11:39:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:39:13,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2024-11-23 11:39:13,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4048, Invalid=14858, Unknown=0, NotChecked=0, Total=18906 [2024-11-23 11:39:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:39:13,288 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:39:13,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 9.905797101449275) internal successors, (1367), 138 states have internal predecessors, (1367), 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 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:39:13,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:39:13,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:39:13,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-11-23 11:39:13,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:39:13,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 11:39:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 11:39:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-23 11:39:13,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 11:39:14,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,SelfDestructingSolverStorable80,SelfDestructingSolverStorable81,SelfDestructingSolverStorable82,SelfDestructingSolverStorable83,SelfDestructingSolverStorable84,SelfDestructingSolverStorable85,SelfDestructingSolverStorable86,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87,SelfDestructingSolverStorable88,SelfDestructingSolverStorable78,SelfDestructingSolverStorable89,SelfDestructingSolverStorable79 [2024-11-23 11:39:14,164 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-23 11:39:14,164 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:39:14,165 INFO L139 ounterexampleChecker]: Examining path program with hash -907621450, occurence #4 [2024-11-23 11:39:14,165 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-23 11:39:14,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-23 11:39:14,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:39:14,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-23 11:39:14,165 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:39:14,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-11-23 11:39:14,165 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:39:14,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-23 11:39:14,165 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:39:14,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-23 11:39:14,165 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:39:14,165 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2024-11-23 11:39:14,166 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:39:14,166 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 191 [2024-11-23 11:39:14,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash 387620500, now seen corresponding path program 1 times [2024-11-23 11:39:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:39:14,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462338687] [2024-11-23 11:39:14,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 313 proven. 55 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-23 11:39:15,069 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:39:15,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462338687] [2024-11-23 11:39:15,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462338687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:15,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1566641504] [2024-11-23 11:39:15,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:15,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:15,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 11:39:15,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 353 proven. 15 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-23 11:39:16,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1566641504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:16,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:39:16,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 38 [2024-11-23 11:39:16,060 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:39:16,060 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 196 [2024-11-23 11:39:16,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:16,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1566565000, now seen corresponding path program 1 times [2024-11-23 11:39:16,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:39:16,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498900322] [2024-11-23 11:39:16,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:16,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 306 proven. 55 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-23 11:39:17,156 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:39:17,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498900322] [2024-11-23 11:39:17,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498900322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:17,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1691987483] [2024-11-23 11:39:17,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:17,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:17,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 11:39:17,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 327 proven. 41 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-23 11:39:18,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1691987483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:18,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:39:18,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 35 [2024-11-23 11:39:18,057 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:39:18,058 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 301 [2024-11-23 11:39:18,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:18,144 INFO L85 PathProgramCache]: Analyzing trace with hash 810194779, now seen corresponding path program 1 times [2024-11-23 11:39:18,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:39:18,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247936155] [2024-11-23 11:39:18,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:18,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 126 proven. 605 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-23 11:39:19,819 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:39:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247936155] [2024-11-23 11:39:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247936155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1981385240] [2024-11-23 11:39:19,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:19,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:19,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 11:39:20,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1168 backedges. 635 proven. 96 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-23 11:39:21,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1981385240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:21,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:39:21,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-11-23 11:39:21,261 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:39:21,261 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 400 [2024-11-23 11:39:21,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:21,314 INFO L85 PathProgramCache]: Analyzing trace with hash 817525446, now seen corresponding path program 1 times [2024-11-23 11:39:21,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:39:21,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928123174] [2024-11-23 11:39:21,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:21,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 68 proven. 691 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-11-23 11:39:23,663 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:39:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928123174] [2024-11-23 11:39:23,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928123174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1094067982] [2024-11-23 11:39:23,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:23,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:23,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 11:39:23,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 675 proven. 84 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-11-23 11:39:25,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1094067982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:25,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:39:25,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-11-23 11:39:25,400 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:39:25,400 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 419 is hopeless, skipping. [2024-11-23 11:39:25,400 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 422 is hopeless, skipping. [2024-11-23 11:39:25,400 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 425 is hopeless, skipping. [2024-11-23 11:39:25,401 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 447 is hopeless, skipping. [2024-11-23 11:39:25,401 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 448 [2024-11-23 11:39:25,401 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:39:25,401 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 450 is hopeless, skipping. [2024-11-23 11:39:25,401 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 477 is hopeless, skipping. [2024-11-23 11:39:25,401 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 490 is hopeless, skipping. [2024-11-23 11:39:25,401 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 492 [2024-11-23 11:39:25,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1693427161, now seen corresponding path program 1 times [2024-11-23 11:39:25,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:39:25,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453407410] [2024-11-23 11:39:25,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:25,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:28,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 84 proven. 695 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-11-23 11:39:28,351 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:39:28,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453407410] [2024-11-23 11:39:28,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453407410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:28,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [595146993] [2024-11-23 11:39:28,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:28,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 2057 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 11:39:28,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2007 backedges. 696 proven. 83 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2024-11-23 11:39:30,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [595146993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:30,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:39:30,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-11-23 11:39:30,418 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:39:30,418 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 519 is hopeless, skipping. [2024-11-23 11:39:30,418 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 536 is hopeless, skipping. [2024-11-23 11:39:30,418 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 549 is hopeless, skipping. [2024-11-23 11:39:30,418 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 561 is hopeless, skipping. [2024-11-23 11:39:30,418 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 563 is hopeless, skipping. [2024-11-23 11:39:30,418 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 590 is hopeless, skipping. [2024-11-23 11:39:30,419 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 604 [2024-11-23 11:39:30,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:30,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1957428286, now seen corresponding path program 1 times [2024-11-23 11:39:30,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-11-23 11:39:30,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654305605] [2024-11-23 11:39:30,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:30,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 62 proven. 533 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-11-23 11:39:34,401 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-11-23 11:39:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654305605] [2024-11-23 11:39:34,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654305605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1084499185] [2024-11-23 11:39:34,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:39:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:39:35,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 11:39:35,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 11:39:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 536 proven. 59 refuted. 0 times theorem prover too weak. 1548 trivial. 0 not checked. [2024-11-23 11:39:36,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1084499185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:36,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 11:39:36,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 44 [2024-11-23 11:39:36,805 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-11-23 11:39:36,805 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 614 is hopeless, skipping. [2024-11-23 11:39:36,806 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 623 [2024-11-23 11:39:36,806 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-23 11:39:36,806 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 625 [2024-11-23 11:39:36,806 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-23 11:39:36,806 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-23 11:39:36,806 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:39:36,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:39:36,807 INFO L85 PathProgramCache]: Analyzing trace with hash 949168164, now seen corresponding path program 11 times [2024-11-23 11:39:36,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:39:36,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775348608] [2024-11-23 11:39:36,807 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:39:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:39:44,631 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-23 11:39:44,632 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 11:39:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 262 proven. 329 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2024-11-23 11:39:50,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:39:50,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775348608] [2024-11-23 11:39:50,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775348608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 11:39:50,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909715381] [2024-11-23 11:39:50,511 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 11:39:50,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 11:39:50,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:39:50,513 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 11:39:50,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13306b2-5cf7-48ee-a6a4-3f98355bd293/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process