./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/standard_strcpy_original-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_strcpy_original-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d1a303ac3a0660bf920920173d22fca6c20b09d575ad3b8f2f9d91205d4f1f6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:10:22,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:10:22,076 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:10:22,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:10:22,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:10:22,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:10:22,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:10:22,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:10:22,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:10:22,109 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:10:22,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:10:22,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:10:22,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:10:22,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:10:22,110 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:10:22,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:10:22,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:10:22,112 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:10:22,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:10:22,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:10:22,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:10:22,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:10:22,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:10:22,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:10:22,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:10:22,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:10:22,113 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:10:22,114 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 1d1a303ac3a0660bf920920173d22fca6c20b09d575ad3b8f2f9d91205d4f1f6 [2024-12-02 10:10:22,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:10:22,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:10:22,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:10:22,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:10:22,419 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:10:22,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/array-examples/standard_strcpy_original-2.i [2024-12-02 10:10:25,106 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/data/6ed304b3e/844e8e16d07f415dbc9244a559c0f4fd/FLAG3b05dcb87 [2024-12-02 10:10:25,301 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:10:25,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/sv-benchmarks/c/array-examples/standard_strcpy_original-2.i [2024-12-02 10:10:25,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/data/6ed304b3e/844e8e16d07f415dbc9244a559c0f4fd/FLAG3b05dcb87 [2024-12-02 10:10:25,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/data/6ed304b3e/844e8e16d07f415dbc9244a559c0f4fd [2024-12-02 10:10:25,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:10:25,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:10:25,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:10:25,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:10:25,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:10:25,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291ab6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25, skipping insertion in model container [2024-12-02 10:10:25,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:10:25,471 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_3ec97709-8272-473b-aaef-6cc9e14dc3c6/sv-benchmarks/c/array-examples/standard_strcpy_original-2.i[896,909] [2024-12-02 10:10:25,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:10:25,495 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:10:25,505 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_3ec97709-8272-473b-aaef-6cc9e14dc3c6/sv-benchmarks/c/array-examples/standard_strcpy_original-2.i[896,909] [2024-12-02 10:10:25,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:10:25,527 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:10:25,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25 WrapperNode [2024-12-02 10:10:25,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:10:25,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:10:25,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:10:25,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:10:25,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,556 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-12-02 10:10:25,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:10:25,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:10:25,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:10:25,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:10:25,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,579 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 2, 5]. 56 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-12-02 10:10:25,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:10:25,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:10:25,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:10:25,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:10:25,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (1/1) ... [2024-12-02 10:10:25,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:10:25,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:25,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:10:25,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:10:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:10:25,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:10:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:10:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:10:25,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:10:25,714 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:10:25,716 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:10:25,848 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 10:10:25,848 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:10:25,856 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:10:25,856 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 10:10:25,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:10:25 BoogieIcfgContainer [2024-12-02 10:10:25,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:10:25,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:10:25,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:10:25,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:10:25,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:10:25" (1/3) ... [2024-12-02 10:10:25,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e43ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:10:25, skipping insertion in model container [2024-12-02 10:10:25,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:25" (2/3) ... [2024-12-02 10:10:25,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e43ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:10:25, skipping insertion in model container [2024-12-02 10:10:25,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:10:25" (3/3) ... [2024-12-02 10:10:25,866 INFO L128 eAbstractionObserver]: Analyzing ICFG standard_strcpy_original-2.i [2024-12-02 10:10:25,882 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:10:25,884 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG standard_strcpy_original-2.i that has 1 procedures, 21 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-12-02 10:10:25,936 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:10:25,948 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=PETRI_NET, 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;@303c9ab7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:10:25,949 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:10:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2024-12-02 10:10:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 10:10:25,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:25,959 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:25,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:25,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1620756590, now seen corresponding path program 1 times [2024-12-02 10:10:25,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:25,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415510197] [2024-12-02 10:10:25,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:25,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:26,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:10:26,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:26,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415510197] [2024-12-02 10:10:26,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415510197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:26,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:26,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:10:26,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192767124] [2024-12-02 10:10:26,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:26,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:10:26,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:26,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:10:26,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:10:26,179 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:10:26,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:26,209 INFO L93 Difference]: Finished difference Result 40 states and 56 transitions. [2024-12-02 10:10:26,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:10:26,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-02 10:10:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:26,218 INFO L225 Difference]: With dead ends: 40 [2024-12-02 10:10:26,219 INFO L226 Difference]: Without dead ends: 19 [2024-12-02 10:10:26,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:10:26,224 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:26,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 43 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:10:26,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-12-02 10:10:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-12-02 10:10:26,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2024-12-02 10:10:26,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-12-02 10:10:26,254 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2024-12-02 10:10:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:26,255 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-12-02 10:10:26,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:10:26,255 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-02 10:10:26,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 10:10:26,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:26,256 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:26,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:10:26,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:26,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash -497084715, now seen corresponding path program 1 times [2024-12-02 10:10:26,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:26,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566260015] [2024-12-02 10:10:26,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:10:26,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:26,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566260015] [2024-12-02 10:10:26,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566260015] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:26,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503023335] [2024-12-02 10:10:26,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:26,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:26,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:26,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:26,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:10:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:26,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:10:26,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:10:26,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:10:26,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503023335] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:26,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:26,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 10:10:26,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127940848] [2024-12-02 10:10:26,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:26,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:10:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:26,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:10:26,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:10:26,523 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2024-12-02 10:10:26,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:26,560 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2024-12-02 10:10:26,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:10:26,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) Word has length 15 [2024-12-02 10:10:26,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:26,561 INFO L225 Difference]: With dead ends: 37 [2024-12-02 10:10:26,561 INFO L226 Difference]: Without dead ends: 24 [2024-12-02 10:10:26,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:10:26,562 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:26,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 36 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:10:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-12-02 10:10:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-12-02 10:10:26,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 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) [2024-12-02 10:10:26,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-12-02 10:10:26,567 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2024-12-02 10:10:26,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:26,567 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-12-02 10:10:26,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2024-12-02 10:10:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-12-02 10:10:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 10:10:26,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:26,568 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:26,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:10:26,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 10:10:26,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:26,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:26,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1268068215, now seen corresponding path program 2 times [2024-12-02 10:10:26,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:26,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631097839] [2024-12-02 10:10:26,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:10:26,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:26,806 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 10:10:26,807 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 10:10:27,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:27,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631097839] [2024-12-02 10:10:27,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631097839] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:10:27,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:10:27,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:10:27,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76633533] [2024-12-02 10:10:27,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:10:27,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:10:27,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:27,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:10:27,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:10:27,087 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2024-12-02 10:10:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:27,179 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2024-12-02 10:10:27,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:10:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) Word has length 21 [2024-12-02 10:10:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:27,180 INFO L225 Difference]: With dead ends: 47 [2024-12-02 10:10:27,180 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 10:10:27,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:10:27,181 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:27,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 48 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:10:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 10:10:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-12-02 10:10:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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) [2024-12-02 10:10:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-12-02 10:10:27,186 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 21 [2024-12-02 10:10:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:27,186 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-12-02 10:10:27,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2024-12-02 10:10:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-12-02 10:10:27,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 10:10:27,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:27,187 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:27,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:10:27,187 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:27,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:27,187 INFO L85 PathProgramCache]: Analyzing trace with hash -26650320, now seen corresponding path program 1 times [2024-12-02 10:10:27,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:27,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342674605] [2024-12-02 10:10:27,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:27,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:10:27,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342674605] [2024-12-02 10:10:27,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342674605] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221721595] [2024-12-02 10:10:27,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:27,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:27,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:27,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:27,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:10:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:27,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:10:27,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:10:27,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:10:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221721595] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:27,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-12-02 10:10:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914635324] [2024-12-02 10:10:27,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:27,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 10:10:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:27,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 10:10:27,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:10:27,462 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2024-12-02 10:10:27,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:27,502 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2024-12-02 10:10:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:10:27,503 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) Word has length 25 [2024-12-02 10:10:27,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:27,504 INFO L225 Difference]: With dead ends: 55 [2024-12-02 10:10:27,504 INFO L226 Difference]: Without dead ends: 39 [2024-12-02 10:10:27,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:10:27,505 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:27,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 70 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:10:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-12-02 10:10:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-12-02 10:10:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 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) [2024-12-02 10:10:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-12-02 10:10:27,511 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 25 [2024-12-02 10:10:27,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:27,511 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-12-02 10:10:27,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 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) [2024-12-02 10:10:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-12-02 10:10:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 10:10:27,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:27,512 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:27,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:10:27,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:27,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:27,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash -912698472, now seen corresponding path program 2 times [2024-12-02 10:10:27,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:27,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756068196] [2024-12-02 10:10:27,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:10:27,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:27,748 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:10:27,748 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:10:27,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756068196] [2024-12-02 10:10:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756068196] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669267991] [2024-12-02 10:10:27,921 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:10:27,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:27,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:27,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:27,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:10:28,006 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:10:28,006 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:28,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 10:10:28,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:10:28,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:10:28,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669267991] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:28,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:28,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-12-02 10:10:28,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867831773] [2024-12-02 10:10:28,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:28,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 10:10:28,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:28,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 10:10:28,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:10:28,308 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 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) [2024-12-02 10:10:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:28,396 INFO L93 Difference]: Finished difference Result 79 states and 98 transitions. [2024-12-02 10:10:28,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 10:10:28,397 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 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) Word has length 37 [2024-12-02 10:10:28,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:28,398 INFO L225 Difference]: With dead ends: 79 [2024-12-02 10:10:28,398 INFO L226 Difference]: Without dead ends: 63 [2024-12-02 10:10:28,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:10:28,399 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:28,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 104 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:10:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-12-02 10:10:28,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-12-02 10:10:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.0806451612903225) internal successors, (67), 62 states have internal predecessors, (67), 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) [2024-12-02 10:10:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-12-02 10:10:28,408 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 37 [2024-12-02 10:10:28,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:28,408 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-12-02 10:10:28,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 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) [2024-12-02 10:10:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-12-02 10:10:28,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 10:10:28,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:28,410 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:28,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:10:28,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:28,610 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:28,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash -320981912, now seen corresponding path program 3 times [2024-12-02 10:10:28,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:28,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080655742] [2024-12-02 10:10:28,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:10:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:28,640 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 10:10:28,640 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 10:10:28,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080655742] [2024-12-02 10:10:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080655742] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627763520] [2024-12-02 10:10:28,900 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:10:28,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:28,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:28,904 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:28,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:10:28,986 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 10:10:28,986 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:28,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:10:28,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:29,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-02 10:10:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 10:10:29,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:29,464 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-12-02 10:10:29,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 18 [2024-12-02 10:10:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 10:10:29,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627763520] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:29,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:29,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-12-02 10:10:29,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109256782] [2024-12-02 10:10:29,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:29,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 10:10:29,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:29,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 10:10:29,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:10:29,542 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:10:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:29,610 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2024-12-02 10:10:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:10:29,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-12-02 10:10:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:29,613 INFO L225 Difference]: With dead ends: 72 [2024-12-02 10:10:29,613 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 10:10:29,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:10:29,614 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 39 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:29,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 61 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:10:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 10:10:29,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2024-12-02 10:10:29,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 67 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) [2024-12-02 10:10:29,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2024-12-02 10:10:29,625 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 61 [2024-12-02 10:10:29,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:29,625 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2024-12-02 10:10:29,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:10:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2024-12-02 10:10:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 10:10:29,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:29,627 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:29,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:10:29,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:29,828 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:29,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash -456669615, now seen corresponding path program 1 times [2024-12-02 10:10:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:29,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327232541] [2024-12-02 10:10:29,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:10:30,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:30,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327232541] [2024-12-02 10:10:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327232541] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:30,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467185863] [2024-12-02 10:10:30,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:10:30,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:30,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:30,484 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:30,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:10:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:10:30,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 10:10:30,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:10:30,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:31,417 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:10:31,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467185863] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:31,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:31,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2024-12-02 10:10:31,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771018651] [2024-12-02 10:10:31,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:31,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-12-02 10:10:31,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:31,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-12-02 10:10:31,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 10:10:31,422 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 49 states, 49 states have (on average 2.2448979591836733) internal successors, (110), 49 states have internal predecessors, (110), 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) [2024-12-02 10:10:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:31,593 INFO L93 Difference]: Finished difference Result 137 states and 170 transitions. [2024-12-02 10:10:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 10:10:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.2448979591836733) internal successors, (110), 49 states have internal predecessors, (110), 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) Word has length 67 [2024-12-02 10:10:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:31,595 INFO L225 Difference]: With dead ends: 137 [2024-12-02 10:10:31,595 INFO L226 Difference]: Without dead ends: 116 [2024-12-02 10:10:31,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 10:10:31,597 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:31,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 70 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:10:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-12-02 10:10:31,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-12-02 10:10:31,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0521739130434782) internal successors, (121), 115 states have internal predecessors, (121), 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) [2024-12-02 10:10:31,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2024-12-02 10:10:31,611 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 67 [2024-12-02 10:10:31,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:31,611 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2024-12-02 10:10:31,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.2448979591836733) internal successors, (110), 49 states have internal predecessors, (110), 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) [2024-12-02 10:10:31,611 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2024-12-02 10:10:31,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 10:10:31,613 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:31,613 INFO L218 NwaCegarLoop]: trace histogram [46, 46, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:31,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:10:31,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:31,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:31,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:31,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1932951567, now seen corresponding path program 2 times [2024-12-02 10:10:31,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:31,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375356379] [2024-12-02 10:10:31,814 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:10:31,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:31,883 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:10:31,883 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:10:33,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:33,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375356379] [2024-12-02 10:10:33,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375356379] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:33,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084413975] [2024-12-02 10:10:33,669 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:10:33,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:33,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:33,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:33,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:10:33,829 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:10:33,830 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:33,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 10:10:33,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:10:33,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:10:36,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084413975] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:36,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:36,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2024-12-02 10:10:36,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529110178] [2024-12-02 10:10:36,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:36,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-12-02 10:10:36,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:36,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-12-02 10:10:36,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-12-02 10:10:36,233 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 97 states, 97 states have (on average 2.1237113402061856) internal successors, (206), 97 states have internal predecessors, (206), 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) [2024-12-02 10:10:36,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:36,529 INFO L93 Difference]: Finished difference Result 233 states and 290 transitions. [2024-12-02 10:10:36,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-12-02 10:10:36,530 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 2.1237113402061856) internal successors, (206), 97 states have internal predecessors, (206), 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) Word has length 115 [2024-12-02 10:10:36,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:36,531 INFO L225 Difference]: With dead ends: 233 [2024-12-02 10:10:36,531 INFO L226 Difference]: Without dead ends: 212 [2024-12-02 10:10:36,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2024-12-02 10:10:36,534 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:36,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:10:36,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-12-02 10:10:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-12-02 10:10:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 1.028436018957346) internal successors, (217), 211 states have internal predecessors, (217), 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) [2024-12-02 10:10:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 217 transitions. [2024-12-02 10:10:36,552 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 217 transitions. Word has length 115 [2024-12-02 10:10:36,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:36,553 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 217 transitions. [2024-12-02 10:10:36,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 2.1237113402061856) internal successors, (206), 97 states have internal predecessors, (206), 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) [2024-12-02 10:10:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 217 transitions. [2024-12-02 10:10:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 10:10:36,555 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:36,555 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:36,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:10:36,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 10:10:36,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:36,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash 137081649, now seen corresponding path program 3 times [2024-12-02 10:10:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628441691] [2024-12-02 10:10:36,759 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:10:36,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:36,952 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 10:10:36,952 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8836 trivial. 0 not checked. [2024-12-02 10:10:37,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:37,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628441691] [2024-12-02 10:10:37,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628441691] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:37,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041902240] [2024-12-02 10:10:37,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:10:37,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:37,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:37,133 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:37,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:10:37,297 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-02 10:10:37,298 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:37,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:10:37,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8836 trivial. 0 not checked. [2024-12-02 10:10:37,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:37,979 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-12-02 10:10:37,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 11 [2024-12-02 10:10:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8836 trivial. 0 not checked. [2024-12-02 10:10:38,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041902240] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:38,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:38,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-12-02 10:10:38,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731500640] [2024-12-02 10:10:38,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:38,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:10:38,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:38,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:10:38,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:10:38,192 INFO L87 Difference]: Start difference. First operand 212 states and 217 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:10:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:38,355 INFO L93 Difference]: Finished difference Result 259 states and 274 transitions. [2024-12-02 10:10:38,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:10:38,356 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-12-02 10:10:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:38,357 INFO L225 Difference]: With dead ends: 259 [2024-12-02 10:10:38,357 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 10:10:38,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:10:38,358 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:38,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 122 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:10:38,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 10:10:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 216. [2024-12-02 10:10:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.0186046511627906) internal successors, (219), 215 states have internal predecessors, (219), 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) [2024-12-02 10:10:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 219 transitions. [2024-12-02 10:10:38,373 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 219 transitions. Word has length 211 [2024-12-02 10:10:38,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:38,374 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 219 transitions. [2024-12-02 10:10:38,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:10:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 219 transitions. [2024-12-02 10:10:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-12-02 10:10:38,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:38,376 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:38,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:10:38,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 10:10:38,577 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:38,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2093741288, now seen corresponding path program 4 times [2024-12-02 10:10:38,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:38,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213505472] [2024-12-02 10:10:38,578 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:10:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:38,667 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:10:38,667 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:43,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8851 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:10:43,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:10:43,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213505472] [2024-12-02 10:10:43,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213505472] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:10:43,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917139846] [2024-12-02 10:10:43,445 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:10:43,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:10:43,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:10:43,446 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:10:43,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:10:43,675 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:10:43,675 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:10:43,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-12-02 10:10:43,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:10:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 8851 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:10:43,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:10:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8851 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:10:52,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917139846] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:10:52,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:10:52,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2024-12-02 10:10:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336586741] [2024-12-02 10:10:52,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:10:52,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2024-12-02 10:10:52,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:10:52,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2024-12-02 10:10:52,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2024-12-02 10:10:52,298 INFO L87 Difference]: Start difference. First operand 216 states and 219 transitions. Second operand has 193 states, 193 states have (on average 2.062176165803109) internal successors, (398), 193 states have internal predecessors, (398), 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) [2024-12-02 10:10:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:10:53,159 INFO L93 Difference]: Finished difference Result 433 states and 534 transitions. [2024-12-02 10:10:53,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-12-02 10:10:53,160 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 2.062176165803109) internal successors, (398), 193 states have internal predecessors, (398), 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) Word has length 215 [2024-12-02 10:10:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:10:53,161 INFO L225 Difference]: With dead ends: 433 [2024-12-02 10:10:53,161 INFO L226 Difference]: Without dead ends: 408 [2024-12-02 10:10:53,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2024-12-02 10:10:53,164 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:10:53,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 114 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:10:53,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-12-02 10:10:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2024-12-02 10:10:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.00982800982801) internal successors, (411), 407 states have internal predecessors, (411), 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) [2024-12-02 10:10:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 411 transitions. [2024-12-02 10:10:53,177 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 411 transitions. Word has length 215 [2024-12-02 10:10:53,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:10:53,177 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 411 transitions. [2024-12-02 10:10:53,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 2.062176165803109) internal successors, (398), 193 states have internal predecessors, (398), 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) [2024-12-02 10:10:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 411 transitions. [2024-12-02 10:10:53,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-12-02 10:10:53,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:10:53,181 INFO L218 NwaCegarLoop]: trace histogram [190, 190, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:10:53,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:10:53,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:10:53,381 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:10:53,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:10:53,382 INFO L85 PathProgramCache]: Analyzing trace with hash 979120536, now seen corresponding path program 5 times [2024-12-02 10:10:53,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:10:53,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046400121] [2024-12-02 10:10:53,382 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:10:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:10:59,986 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 191 check-sat command(s) [2024-12-02 10:10:59,986 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:11:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 36115 backedges. 0 proven. 36100 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:11:18,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:11:18,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046400121] [2024-12-02 10:11:18,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046400121] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:11:18,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461135339] [2024-12-02 10:11:18,697 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:11:18,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:11:18,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:11:18,698 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:11:18,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ec97709-8272-473b-aaef-6cc9e14dc3c6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process