./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_exit.c --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_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_exit.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB --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 d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:51:02,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:51:02,772 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 19:51:02,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:51:02,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:51:02,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:51:02,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:51:02,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:51:02,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:51:02,801 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:51:02,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:51:02,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:51:02,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:51:02,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:51:02,802 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:51:02,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:51:02,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:51:02,804 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:02,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:02,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:02,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:51:02,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:51:02,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:51:02,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:51:02,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:51:02,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:51:02,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:51:02,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:51:02,806 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_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f [2024-11-27 19:51:03,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:51:03,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:51:03,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:51:03,122 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:51:03,123 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:51:03,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-benchs/rlim_exit.c [2024-11-27 19:51:06,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/data/874e17b17/739d2be095ae428cb34d415b9a5bb4fd/FLAG5b0f27035 [2024-11-27 19:51:06,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:51:06,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/sv-benchmarks/c/float-benchs/rlim_exit.c [2024-11-27 19:51:06,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/data/874e17b17/739d2be095ae428cb34d415b9a5bb4fd/FLAG5b0f27035 [2024-11-27 19:51:06,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/data/874e17b17/739d2be095ae428cb34d415b9a5bb4fd [2024-11-27 19:51:06,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:51:06,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:51:06,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:06,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:51:06,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:51:06,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248d4b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06, skipping insertion in model container [2024-11-27 19:51:06,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:51:06,843 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_5f5868e6-818a-4fde-861e-3d9b66122d4c/sv-benchmarks/c/float-benchs/rlim_exit.c[446,459] [2024-11-27 19:51:06,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:06,876 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:51:06,887 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_5f5868e6-818a-4fde-861e-3d9b66122d4c/sv-benchmarks/c/float-benchs/rlim_exit.c[446,459] [2024-11-27 19:51:06,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:06,911 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:06,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06 WrapperNode [2024-11-27 19:51:06,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:06,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:06,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:06,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:06,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,952 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2024-11-27 19:51:06,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:06,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:06,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:06,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:06,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,986 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 19:51:06,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,992 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:06,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:07,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:07,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:07,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:07,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:07,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:07,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:07,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:07,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (1/1) ... [2024-11-27 19:51:07,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:07,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:07,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:07,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:51:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:51:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:07,166 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:07,168 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:07,331 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:07,331 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:07,341 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:07,341 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 19:51:07,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:07 BoogieIcfgContainer [2024-11-27 19:51:07,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:07,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:07,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:07,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:07,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:51:06" (1/3) ... [2024-11-27 19:51:07,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec854aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:07, skipping insertion in model container [2024-11-27 19:51:07,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:06" (2/3) ... [2024-11-27 19:51:07,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec854aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:07, skipping insertion in model container [2024-11-27 19:51:07,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:07" (3/3) ... [2024-11-27 19:51:07,353 INFO L128 eAbstractionObserver]: Analyzing ICFG rlim_exit.c [2024-11-27 19:51:07,370 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:07,372 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rlim_exit.c that has 2 procedures, 22 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 19:51:07,443 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:07,457 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;@445406e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:07,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 19:51:07,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:51:07,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-27 19:51:07,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:07,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 19:51:07,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:07,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:07,478 INFO L85 PathProgramCache]: Analyzing trace with hash 889679514, now seen corresponding path program 1 times [2024-11-27 19:51:07,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:07,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806611310] [2024-11-27 19:51:07,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:07,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:07,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:07,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806611310] [2024-11-27 19:51:07,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806611310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:07,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:07,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925253718] [2024-11-27 19:51:07,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:07,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:07,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:07,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:07,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:07,747 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:07,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:07,801 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2024-11-27 19:51:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:07,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-27 19:51:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:07,813 INFO L225 Difference]: With dead ends: 50 [2024-11-27 19:51:07,813 INFO L226 Difference]: Without dead ends: 26 [2024-11-27 19:51:07,818 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 [2024-11-27 19:51:07,822 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 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 [2024-11-27 19:51:07,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 43 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-27 19:51:07,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2024-11-27 19:51:07,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 19:51:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2024-11-27 19:51:07,876 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 6 [2024-11-27 19:51:07,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:07,876 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-27 19:51:07,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:07,877 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-27 19:51:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 19:51:07,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:07,880 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:07,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:51:07,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:07,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:07,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1788932060, now seen corresponding path program 1 times [2024-11-27 19:51:07,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:07,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438645086] [2024-11-27 19:51:07,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:07,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:08,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:08,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438645086] [2024-11-27 19:51:08,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438645086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:08,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839250535] [2024-11-27 19:51:08,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:08,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:08,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:08,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:08,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:51:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:08,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:51:08,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:08,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:51:08,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839250535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:08,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:08,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 19:51:08,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124889082] [2024-11-27 19:51:08,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:08,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:51:08,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:08,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:51:08,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:08,361 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 19:51:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:08,454 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2024-11-27 19:51:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:51:08,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 21 [2024-11-27 19:51:08,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:08,456 INFO L225 Difference]: With dead ends: 47 [2024-11-27 19:51:08,457 INFO L226 Difference]: Without dead ends: 43 [2024-11-27 19:51:08,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:08,458 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 29 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:08,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 61 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:51:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-27 19:51:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-27 19:51:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 19:51:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2024-11-27 19:51:08,474 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 21 [2024-11-27 19:51:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:08,474 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2024-11-27 19:51:08,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 19:51:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2024-11-27 19:51:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 19:51:08,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:08,480 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:08,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:51:08,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:08,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:08,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:08,681 INFO L85 PathProgramCache]: Analyzing trace with hash -161278950, now seen corresponding path program 2 times [2024-11-27 19:51:08,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:08,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501775683] [2024-11-27 19:51:08,682 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:08,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:08,751 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:08,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 19:51:09,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501775683] [2024-11-27 19:51:09,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501775683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450448746] [2024-11-27 19:51:09,108 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:51:09,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:09,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:09,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:09,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:51:09,232 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:51:09,233 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:09,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 19:51:09,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 19:51:09,371 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 19:51:09,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450448746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:09,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:09,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-27 19:51:09,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137692711] [2024-11-27 19:51:09,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:09,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:51:09,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:09,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:51:09,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:51:09,562 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-27 19:51:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:09,678 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2024-11-27 19:51:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:09,678 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 66 [2024-11-27 19:51:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:09,680 INFO L225 Difference]: With dead ends: 95 [2024-11-27 19:51:09,680 INFO L226 Difference]: Without dead ends: 91 [2024-11-27 19:51:09,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:51:09,681 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 62 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:09,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 118 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:51:09,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-27 19:51:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-27 19:51:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 69 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 19:51:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2024-11-27 19:51:09,705 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 66 [2024-11-27 19:51:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:09,707 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2024-11-27 19:51:09,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-27 19:51:09,708 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2024-11-27 19:51:09,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-27 19:51:09,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:09,714 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:09,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:09,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:09,918 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:09,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:09,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1005040730, now seen corresponding path program 3 times [2024-11-27 19:51:09,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:09,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464089554] [2024-11-27 19:51:09,919 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:51:09,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:10,096 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-27 19:51:10,096 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 19:51:10,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:10,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464089554] [2024-11-27 19:51:10,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464089554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:10,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990407231] [2024-11-27 19:51:10,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:51:10,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:10,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:10,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:10,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:51:10,869 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-27 19:51:10,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:10,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 19:51:10,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 19:51:11,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1085 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-27 19:51:11,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990407231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:11,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:11,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-27 19:51:11,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114391353] [2024-11-27 19:51:11,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:11,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 19:51:11,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:11,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 19:51:11,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-27 19:51:11,678 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand has 25 states, 25 states have (on average 4.68) internal successors, (117), 25 states have internal predecessors, (117), 21 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 21 states have call predecessors, (42), 21 states have call successors, (42) [2024-11-27 19:51:11,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:11,974 INFO L93 Difference]: Finished difference Result 191 states and 289 transitions. [2024-11-27 19:51:11,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 19:51:11,975 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.68) internal successors, (117), 25 states have internal predecessors, (117), 21 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 21 states have call predecessors, (42), 21 states have call successors, (42) Word has length 156 [2024-11-27 19:51:11,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:11,978 INFO L225 Difference]: With dead ends: 191 [2024-11-27 19:51:11,978 INFO L226 Difference]: Without dead ends: 187 [2024-11-27 19:51:11,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-27 19:51:11,980 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 194 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:11,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 181 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-27 19:51:12,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-11-27 19:51:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 141 states have (on average 1.3191489361702127) internal successors, (186), 141 states have internal predecessors, (186), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 19:51:12,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 274 transitions. [2024-11-27 19:51:12,022 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 274 transitions. Word has length 156 [2024-11-27 19:51:12,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:12,024 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 274 transitions. [2024-11-27 19:51:12,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.68) internal successors, (117), 25 states have internal predecessors, (117), 21 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 21 states have call predecessors, (42), 21 states have call successors, (42) [2024-11-27 19:51:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 274 transitions. [2024-11-27 19:51:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-27 19:51:12,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:12,035 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:12,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:12,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:12,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:12,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash 224625882, now seen corresponding path program 4 times [2024-11-27 19:51:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:12,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591031362] [2024-11-27 19:51:12,237 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:51:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:12,381 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:51:12,381 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5423 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-27 19:51:13,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:13,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591031362] [2024-11-27 19:51:13,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591031362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:13,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439243328] [2024-11-27 19:51:13,877 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 19:51:13,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:13,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:13,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:13,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:51:14,143 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 19:51:14,143 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:14,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 19:51:14,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5423 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-27 19:51:14,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5423 backedges. 0 proven. 1639 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-27 19:51:16,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439243328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:16,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:16,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2024-11-27 19:51:16,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115633075] [2024-11-27 19:51:16,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:16,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-27 19:51:16,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:16,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-27 19:51:16,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 19:51:16,045 INFO L87 Difference]: Start difference. First operand 187 states and 274 transitions. Second operand has 48 states, 48 states have (on average 4.8125) internal successors, (231), 48 states have internal predecessors, (231), 44 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 44 states have call predecessors, (88), 44 states have call successors, (88) [2024-11-27 19:51:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:16,594 INFO L93 Difference]: Finished difference Result 383 states and 589 transitions. [2024-11-27 19:51:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-27 19:51:16,595 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.8125) internal successors, (231), 48 states have internal predecessors, (231), 44 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 44 states have call predecessors, (88), 44 states have call successors, (88) Word has length 336 [2024-11-27 19:51:16,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:16,599 INFO L225 Difference]: With dead ends: 383 [2024-11-27 19:51:16,599 INFO L226 Difference]: Without dead ends: 379 [2024-11-27 19:51:16,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 19:51:16,601 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 443 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:16,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 325 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:51:16,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-27 19:51:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-11-27 19:51:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 285 states have (on average 1.3263157894736841) internal successors, (378), 285 states have internal predecessors, (378), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-27 19:51:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 562 transitions. [2024-11-27 19:51:16,641 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 562 transitions. Word has length 336 [2024-11-27 19:51:16,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:16,642 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 562 transitions. [2024-11-27 19:51:16,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.8125) internal successors, (231), 48 states have internal predecessors, (231), 44 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 44 states have call predecessors, (88), 44 states have call successors, (88) [2024-11-27 19:51:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 562 transitions. [2024-11-27 19:51:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-11-27 19:51:16,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:16,666 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:16,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:51:16,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:16,870 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:16,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:16,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1961531942, now seen corresponding path program 5 times [2024-11-27 19:51:16,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:16,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037458957] [2024-11-27 19:51:16,871 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:51:16,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:17,226 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2024-11-27 19:51:17,226 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 24035 backedges. 0 proven. 7291 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2024-11-27 19:51:21,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:21,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037458957] [2024-11-27 19:51:21,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037458957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:21,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924016888] [2024-11-27 19:51:21,907 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 19:51:21,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:21,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:21,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:21,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:51:22,543 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2024-11-27 19:51:22,543 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:22,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-27 19:51:22,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 24035 backedges. 0 proven. 7291 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2024-11-27 19:51:23,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 24035 backedges. 0 proven. 7291 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2024-11-27 19:51:27,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924016888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:27,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:27,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2024-11-27 19:51:27,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256693494] [2024-11-27 19:51:27,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:27,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-27 19:51:27,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:27,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-27 19:51:27,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-27 19:51:27,351 INFO L87 Difference]: Start difference. First operand 379 states and 562 transitions. Second operand has 96 states, 96 states have (on average 4.90625) internal successors, (471), 96 states have internal predecessors, (471), 92 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 92 states have call predecessors, (184), 92 states have call successors, (184) [2024-11-27 19:51:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:29,722 INFO L93 Difference]: Finished difference Result 767 states and 1189 transitions. [2024-11-27 19:51:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-27 19:51:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 4.90625) internal successors, (471), 96 states have internal predecessors, (471), 92 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 92 states have call predecessors, (184), 92 states have call successors, (184) Word has length 696 [2024-11-27 19:51:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:29,735 INFO L225 Difference]: With dead ends: 767 [2024-11-27 19:51:29,735 INFO L226 Difference]: Without dead ends: 763 [2024-11-27 19:51:29,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1439 GetRequests, 1345 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-27 19:51:29,741 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 968 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:29,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 631 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:51:29,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-27 19:51:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2024-11-27 19:51:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 573 states have (on average 1.3298429319371727) internal successors, (762), 573 states have internal predecessors, (762), 188 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-27 19:51:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1138 transitions. [2024-11-27 19:51:29,804 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1138 transitions. Word has length 696 [2024-11-27 19:51:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:29,805 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1138 transitions. [2024-11-27 19:51:29,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 4.90625) internal successors, (471), 96 states have internal predecessors, (471), 92 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 92 states have call predecessors, (184), 92 states have call successors, (184) [2024-11-27 19:51:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1138 transitions. [2024-11-27 19:51:29,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1417 [2024-11-27 19:51:29,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:29,876 INFO L218 NwaCegarLoop]: trace histogram [188, 188, 188, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:29,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 19:51:30,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 19:51:30,080 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:51:30,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:30,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1864226854, now seen corresponding path program 6 times [2024-11-27 19:51:30,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:30,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484552781] [2024-11-27 19:51:30,082 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 19:51:30,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:30,768 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 130 check-sat command(s) [2024-11-27 19:51:30,768 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 101003 backedges. 0 proven. 30691 refuted. 0 times theorem prover too weak. 70312 trivial. 0 not checked. [2024-11-27 19:51:46,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484552781] [2024-11-27 19:51:46,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484552781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460960708] [2024-11-27 19:51:46,738 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 19:51:46,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:46,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:46,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:46,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:51:48,251 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 130 check-sat command(s) [2024-11-27 19:51:48,251 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:48,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-27 19:51:48,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 101003 backedges. 0 proven. 30691 refuted. 0 times theorem prover too weak. 70312 trivial. 0 not checked. [2024-11-27 19:51:49,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 101003 backedges. 0 proven. 30691 refuted. 0 times theorem prover too weak. 70312 trivial. 0 not checked. [2024-11-27 19:52:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460960708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:52:01,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:52:01,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2024-11-27 19:52:01,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143185716] [2024-11-27 19:52:01,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:01,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2024-11-27 19:52:01,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:01,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2024-11-27 19:52:01,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2024-11-27 19:52:01,729 INFO L87 Difference]: Start difference. First operand 763 states and 1138 transitions. Second operand has 193 states, 193 states have (on average 4.958549222797927) internal successors, (957), 193 states have internal predecessors, (957), 189 states have call successors, (378), 1 states have call predecessors, (378), 1 states have return successors, (378), 189 states have call predecessors, (378), 189 states have call successors, (378) [2024-11-27 19:52:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:17,524 INFO L93 Difference]: Finished difference Result 1535 states and 2389 transitions. [2024-11-27 19:52:17,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-27 19:52:17,526 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 4.958549222797927) internal successors, (957), 193 states have internal predecessors, (957), 189 states have call successors, (378), 1 states have call predecessors, (378), 1 states have return successors, (378), 189 states have call predecessors, (378), 189 states have call successors, (378) Word has length 1416 [2024-11-27 19:52:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:17,538 INFO L225 Difference]: With dead ends: 1535 [2024-11-27 19:52:17,538 INFO L226 Difference]: Without dead ends: 1531 [2024-11-27 19:52:17,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2927 GetRequests, 2736 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2024-11-27 19:52:17,543 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2918 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:17,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2922 Valid, 1195 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:52:17,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-27 19:52:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1531. [2024-11-27 19:52:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1149 states have (on average 1.3315926892950392) internal successors, (1530), 1149 states have internal predecessors, (1530), 380 states have call successors, (380), 1 states have call predecessors, (380), 1 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2024-11-27 19:52:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2290 transitions. [2024-11-27 19:52:17,620 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2290 transitions. Word has length 1416 [2024-11-27 19:52:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:17,623 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 2290 transitions. [2024-11-27 19:52:17,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 4.958549222797927) internal successors, (957), 193 states have internal predecessors, (957), 189 states have call successors, (378), 1 states have call predecessors, (378), 1 states have return successors, (378), 189 states have call predecessors, (378), 189 states have call successors, (378) [2024-11-27 19:52:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2290 transitions. [2024-11-27 19:52:17,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2857 [2024-11-27 19:52:17,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:17,668 INFO L218 NwaCegarLoop]: trace histogram [380, 380, 380, 190, 190, 190, 190, 190, 190, 190, 190, 190, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:17,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 19:52:17,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 19:52:17,869 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:52:17,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1109371866, now seen corresponding path program 7 times [2024-11-27 19:52:17,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:17,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5855289] [2024-11-27 19:52:17,871 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 19:52:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 413915 backedges. 0 proven. 125875 refuted. 0 times theorem prover too weak. 288040 trivial. 0 not checked. [2024-11-27 19:53:51,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:51,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5855289] [2024-11-27 19:53:51,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5855289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:53:51,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501367409] [2024-11-27 19:53:51,621 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 19:53:51,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:51,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:53:51,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:53:51,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:53:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:53,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 5161 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-27 19:53:53,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:53:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 413915 backedges. 0 proven. 125875 refuted. 0 times theorem prover too weak. 288040 trivial. 0 not checked. [2024-11-27 19:53:54,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:54:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 413915 backedges. 0 proven. 125875 refuted. 0 times theorem prover too weak. 288040 trivial. 0 not checked. [2024-11-27 19:54:41,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501367409] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:54:41,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:54:41,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 385 [2024-11-27 19:54:41,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923070598] [2024-11-27 19:54:41,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:54:41,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 385 states [2024-11-27 19:54:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:41,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 385 interpolants. [2024-11-27 19:54:41,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73920, Invalid=73920, Unknown=0, NotChecked=0, Total=147840 [2024-11-27 19:54:41,957 INFO L87 Difference]: Start difference. First operand 1531 states and 2290 transitions. Second operand has 385 states, 385 states have (on average 4.979220779220779) internal successors, (1917), 385 states have internal predecessors, (1917), 381 states have call successors, (762), 1 states have call predecessors, (762), 1 states have return successors, (762), 381 states have call predecessors, (762), 381 states have call successors, (762) [2024-11-27 19:59:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:59:57,097 INFO L93 Difference]: Finished difference Result 3071 states and 4789 transitions. [2024-11-27 19:59:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2024-11-27 19:59:57,101 INFO L78 Accepts]: Start accepts. Automaton has has 385 states, 385 states have (on average 4.979220779220779) internal successors, (1917), 385 states have internal predecessors, (1917), 381 states have call successors, (762), 1 states have call predecessors, (762), 1 states have return successors, (762), 381 states have call predecessors, (762), 381 states have call successors, (762) Word has length 2856 [2024-11-27 19:59:57,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:59:57,126 INFO L225 Difference]: With dead ends: 3071 [2024-11-27 19:59:57,126 INFO L226 Difference]: Without dead ends: 3067 [2024-11-27 19:59:57,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5903 GetRequests, 5520 SyntacticMatches, 0 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 59.5s TimeCoverageRelationStatistics Valid=73920, Invalid=73920, Unknown=0, NotChecked=0, Total=147840 [2024-11-27 19:59:57,140 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 5666 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5670 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:59:57,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5670 Valid, 2377 Invalid, 1537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 19:59:57,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2024-11-27 19:59:57,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 3067. [2024-11-27 19:59:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2301 states have (on average 1.332464146023468) internal successors, (3066), 2301 states have internal predecessors, (3066), 764 states have call successors, (764), 1 states have call predecessors, (764), 1 states have return successors, (764), 764 states have call predecessors, (764), 764 states have call successors, (764) [2024-11-27 19:59:57,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4594 transitions. [2024-11-27 19:59:57,302 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4594 transitions. Word has length 2856 [2024-11-27 19:59:57,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:59:57,312 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 4594 transitions. [2024-11-27 19:59:57,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 385 states, 385 states have (on average 4.979220779220779) internal successors, (1917), 385 states have internal predecessors, (1917), 381 states have call successors, (762), 1 states have call predecessors, (762), 1 states have return successors, (762), 381 states have call predecessors, (762), 381 states have call successors, (762) [2024-11-27 19:59:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4594 transitions. [2024-11-27 19:59:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5737 [2024-11-27 19:59:57,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:59:57,548 INFO L218 NwaCegarLoop]: trace histogram [764, 764, 764, 382, 382, 382, 382, 382, 382, 382, 382, 382, 1, 1, 1, 1, 1, 1] [2024-11-27 19:59:57,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 19:59:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5868e6-818a-4fde-861e-3d9b66122d4c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 19:59:57,749 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 19:59:57,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:59:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash 455783386, now seen corresponding path program 8 times [2024-11-27 19:59:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:59:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23498151] [2024-11-27 19:59:57,751 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:59:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:59:59,288 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:59:59,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat