./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array17_pattern.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_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array17_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bbdbab39b20ef0f9bb51ea0fb71bf773586866898cf5babc34262381f9b9103 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:36:54,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:36:54,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:36:54,560 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:36:54,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:36:54,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:36:54,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:36:54,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:36:54,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:36:54,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:36:54,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:36:54,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:36:54,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:36:54,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:36:54,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:36:54,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:36:54,584 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:36:54,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:36:54,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:36:54,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:36:54,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:36:54,585 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_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bbdbab39b20ef0f9bb51ea0fb71bf773586866898cf5babc34262381f9b9103 [2024-12-02 10:36:54,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:36:54,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:36:54,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:36:54,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:36:54,851 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:36:54,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/array-patterns/array17_pattern.c [2024-12-02 10:36:57,545 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/data/ff16828b6/8021f072e3b54f45a8d7073e99221c6a/FLAG50c9fb889 [2024-12-02 10:36:57,757 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:36:57,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/sv-benchmarks/c/array-patterns/array17_pattern.c [2024-12-02 10:36:57,764 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/data/ff16828b6/8021f072e3b54f45a8d7073e99221c6a/FLAG50c9fb889 [2024-12-02 10:36:57,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/data/ff16828b6/8021f072e3b54f45a8d7073e99221c6a [2024-12-02 10:36:57,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:36:57,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:36:57,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:36:57,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:36:57,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:36:57,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:57,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20418c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57, skipping insertion in model container [2024-12-02 10:36:57,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:57,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:36:57,904 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_f98595c1-74ed-494e-9444-2a1c1b5786d6/sv-benchmarks/c/array-patterns/array17_pattern.c[1441,1454] [2024-12-02 10:36:57,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:36:57,935 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:36:57,943 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_f98595c1-74ed-494e-9444-2a1c1b5786d6/sv-benchmarks/c/array-patterns/array17_pattern.c[1441,1454] [2024-12-02 10:36:57,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:36:57,967 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:36:57,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57 WrapperNode [2024-12-02 10:36:57,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:36:57,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:36:57,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:36:57,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:36:57,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:57,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:57,993 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2024-12-02 10:36:57,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:36:57,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:36:57,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:36:57,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:36:58,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,016 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-12-02 10:36:58,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,021 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:36:58,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:36:58,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:36:58,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:36:58,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (1/1) ... [2024-12-02 10:36:58,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:36:58,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:58,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:36:58,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 10:36:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:36:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:36:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:36:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:36:58,145 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:36:58,146 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:36:58,307 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-02 10:36:58,307 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:36:58,317 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:36:58,317 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 10:36:58,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:58 BoogieIcfgContainer [2024-12-02 10:36:58,317 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:36:58,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:36:58,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:36:58,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:36:58,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:36:57" (1/3) ... [2024-12-02 10:36:58,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58289f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:58, skipping insertion in model container [2024-12-02 10:36:58,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:57" (2/3) ... [2024-12-02 10:36:58,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58289f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:58, skipping insertion in model container [2024-12-02 10:36:58,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:58" (3/3) ... [2024-12-02 10:36:58,325 INFO L128 eAbstractionObserver]: Analyzing ICFG array17_pattern.c [2024-12-02 10:36:58,336 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:36:58,338 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array17_pattern.c that has 2 procedures, 35 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-12-02 10:36:58,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:36:58,391 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;@1c82e2c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:36:58,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 10:36:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 30 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:36:58,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 10:36:58,399 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:58,400 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:58,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:58,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1020821997, now seen corresponding path program 1 times [2024-12-02 10:36:58,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:58,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348762888] [2024-12-02 10:36:58,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:58,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:58,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:58,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:58,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348762888] [2024-12-02 10:36:58,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348762888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:58,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:58,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:36:58,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483080141] [2024-12-02 10:36:58,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:58,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 10:36:58,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:58,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 10:36:58,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:36:58,534 INFO L87 Difference]: Start difference. First operand has 35 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 30 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 10:36:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:58,549 INFO L93 Difference]: Finished difference Result 67 states and 101 transitions. [2024-12-02 10:36:58,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 10:36:58,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-12-02 10:36:58,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:58,554 INFO L225 Difference]: With dead ends: 67 [2024-12-02 10:36:58,555 INFO L226 Difference]: Without dead ends: 31 [2024-12-02 10:36:58,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 10:36:58,559 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:58,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:58,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-12-02 10:36:58,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-12-02 10:36:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:36:58,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2024-12-02 10:36:58,585 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 15 [2024-12-02 10:36:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:58,586 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-12-02 10:36:58,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 10:36:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-12-02 10:36:58,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 10:36:58,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:58,587 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:58,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:36:58,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:58,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:58,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1618540529, now seen corresponding path program 1 times [2024-12-02 10:36:58,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:58,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7828615] [2024-12-02 10:36:58,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:58,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 10:36:58,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:58,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7828615] [2024-12-02 10:36:58,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7828615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:58,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:58,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:58,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146131243] [2024-12-02 10:36:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:58,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:58,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:58,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:58,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:58,862 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:58,883 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2024-12-02 10:36:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:58,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-12-02 10:36:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:58,885 INFO L225 Difference]: With dead ends: 40 [2024-12-02 10:36:58,885 INFO L226 Difference]: Without dead ends: 36 [2024-12-02 10:36:58,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:58,886 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:58,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 89 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:58,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-12-02 10:36:58,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2024-12-02 10:36:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:36:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2024-12-02 10:36:58,891 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 30 [2024-12-02 10:36:58,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:58,893 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2024-12-02 10:36:58,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:58,893 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2024-12-02 10:36:58,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 10:36:58,894 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:58,894 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:58,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:36:58,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:58,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:58,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1945910593, now seen corresponding path program 1 times [2024-12-02 10:36:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448537501] [2024-12-02 10:36:58,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:58,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:36:59,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448537501] [2024-12-02 10:36:59,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448537501] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:59,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:59,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:59,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117510918] [2024-12-02 10:36:59,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:59,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:59,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:59,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:59,035 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:59,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:59,143 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2024-12-02 10:36:59,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:59,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-12-02 10:36:59,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:59,145 INFO L225 Difference]: With dead ends: 74 [2024-12-02 10:36:59,145 INFO L226 Difference]: Without dead ends: 47 [2024-12-02 10:36:59,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:59,146 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 18 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:59,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 71 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-12-02 10:36:59,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2024-12-02 10:36:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:36:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2024-12-02 10:36:59,153 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 36 [2024-12-02 10:36:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:59,153 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-12-02 10:36:59,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-12-02 10:36:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 10:36:59,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:59,155 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:59,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:36:59,155 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:59,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash -108446775, now seen corresponding path program 1 times [2024-12-02 10:36:59,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:59,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811572346] [2024-12-02 10:36:59,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:59,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:36:59,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811572346] [2024-12-02 10:36:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811572346] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:59,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:59,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195136154] [2024-12-02 10:36:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:59,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:59,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:59,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:59,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:59,261 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:59,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:59,348 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2024-12-02 10:36:59,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:59,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-12-02 10:36:59,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:59,350 INFO L225 Difference]: With dead ends: 76 [2024-12-02 10:36:59,350 INFO L226 Difference]: Without dead ends: 45 [2024-12-02 10:36:59,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:59,352 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:59,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 87 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:59,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-12-02 10:36:59,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2024-12-02 10:36:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:36:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-12-02 10:36:59,359 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 40 [2024-12-02 10:36:59,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:59,359 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-12-02 10:36:59,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-12-02 10:36:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 10:36:59,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:59,360 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:59,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:36:59,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:36:59,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1188491981, now seen corresponding path program 1 times [2024-12-02 10:36:59,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:59,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941139303] [2024-12-02 10:36:59,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:36:59,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928689104] [2024-12-02 10:36:59,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:59,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:59,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:59,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:59,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:36:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:59,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-12-02 10:36:59,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:59,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 10:37:00,223 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-12-02 10:37:00,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 18 [2024-12-02 10:37:00,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 10:37:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 10:37:00,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:07,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:07,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941139303] [2024-12-02 10:37:07,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:37:07,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928689104] [2024-12-02 10:37:07,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928689104] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:07,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:37:07,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-12-02 10:37:07,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539190702] [2024-12-02 10:37:07,517 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:07,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 10:37:07,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:07,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 10:37:07,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=850, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:37:07,519 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 22 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:37:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:08,191 INFO L93 Difference]: Finished difference Result 109 states and 135 transitions. [2024-12-02 10:37:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 10:37:08,192 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-12-02 10:37:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:08,193 INFO L225 Difference]: With dead ends: 109 [2024-12-02 10:37:08,193 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 10:37:08,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=205, Invalid=1355, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 10:37:08,195 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 69 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:08,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 236 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:37:08,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 10:37:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2024-12-02 10:37:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 10:37:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2024-12-02 10:37:08,206 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 42 [2024-12-02 10:37:08,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:08,206 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2024-12-02 10:37:08,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 20 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:37:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2024-12-02 10:37:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 10:37:08,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:08,207 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:08,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:37:08,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:08,409 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:08,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash 167423627, now seen corresponding path program 1 times [2024-12-02 10:37:08,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:08,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621923978] [2024-12-02 10:37:08,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:08,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 10:37:08,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:08,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621923978] [2024-12-02 10:37:08,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621923978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:37:08,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:37:08,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:37:08,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179011231] [2024-12-02 10:37:08,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:37:08,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:37:08,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:08,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:37:08,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:37:08,443 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 10:37:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:08,465 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2024-12-02 10:37:08,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:37:08,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-12-02 10:37:08,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:08,466 INFO L225 Difference]: With dead ends: 97 [2024-12-02 10:37:08,466 INFO L226 Difference]: Without dead ends: 72 [2024-12-02 10:37:08,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:37:08,467 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:08,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 68 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:37:08,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-12-02 10:37:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2024-12-02 10:37:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 10:37:08,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2024-12-02 10:37:08,477 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 42 [2024-12-02 10:37:08,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:08,477 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2024-12-02 10:37:08,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 10:37:08,477 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2024-12-02 10:37:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 10:37:08,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:08,478 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:08,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:37:08,478 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:08,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash -843693623, now seen corresponding path program 1 times [2024-12-02 10:37:08,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:08,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403705998] [2024-12-02 10:37:08,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:08,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 10:37:08,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:08,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403705998] [2024-12-02 10:37:08,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403705998] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:08,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522423057] [2024-12-02 10:37:08,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:08,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:08,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:08,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:37:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:08,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 10:37:08,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 10:37:08,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 10:37:09,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522423057] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:37:09,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:37:09,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 11] total 23 [2024-12-02 10:37:09,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239215270] [2024-12-02 10:37:09,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:09,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 10:37:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:09,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 10:37:09,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:37:09,143 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 23 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-12-02 10:37:09,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:09,701 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2024-12-02 10:37:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 10:37:09,702 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 42 [2024-12-02 10:37:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:09,705 INFO L225 Difference]: With dead ends: 290 [2024-12-02 10:37:09,705 INFO L226 Difference]: Without dead ends: 232 [2024-12-02 10:37:09,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1213, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 10:37:09,707 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 218 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:09,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 416 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:37:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-12-02 10:37:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 126. [2024-12-02 10:37:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 112 states have internal predecessors, (136), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:37:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions. [2024-12-02 10:37:09,730 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 42 [2024-12-02 10:37:09,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:09,731 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions. [2024-12-02 10:37:09,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-12-02 10:37:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2024-12-02 10:37:09,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 10:37:09,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:09,733 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:09,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:37:09,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:09,933 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:09,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2006120657, now seen corresponding path program 2 times [2024-12-02 10:37:09,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:09,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271413842] [2024-12-02 10:37:09,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:37:09,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:09,950 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:37:09,951 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:10,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:10,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271413842] [2024-12-02 10:37:10,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271413842] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:10,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440809424] [2024-12-02 10:37:10,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 10:37:10,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:10,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:10,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:10,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:37:10,093 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 10:37:10,093 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:10,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:37:10,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:37:10,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440809424] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:37:10,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:37:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-12-02 10:37:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678152993] [2024-12-02 10:37:10,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:10,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:37:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:10,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:37:10,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:37:10,199 INFO L87 Difference]: Start difference. First operand 126 states and 154 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 10:37:10,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:10,382 INFO L93 Difference]: Finished difference Result 209 states and 262 transitions. [2024-12-02 10:37:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:37:10,383 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-12-02 10:37:10,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:10,384 INFO L225 Difference]: With dead ends: 209 [2024-12-02 10:37:10,384 INFO L226 Difference]: Without dead ends: 169 [2024-12-02 10:37:10,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:37:10,385 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:10,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 193 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:37:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-12-02 10:37:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 141. [2024-12-02 10:37:10,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 125 states have (on average 1.24) internal successors, (155), 127 states have internal predecessors, (155), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:37:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 173 transitions. [2024-12-02 10:37:10,407 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 173 transitions. Word has length 44 [2024-12-02 10:37:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:10,407 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 173 transitions. [2024-12-02 10:37:10,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 10:37:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 173 transitions. [2024-12-02 10:37:10,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 10:37:10,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:10,408 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:10,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:37:10,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:10,609 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:10,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2139822299, now seen corresponding path program 3 times [2024-12-02 10:37:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486031617] [2024-12-02 10:37:10,609 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 10:37:10,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:10,638 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 10:37:10,638 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:10,796 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:10,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:10,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486031617] [2024-12-02 10:37:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486031617] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:37:10,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:37:10,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:37:10,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865704036] [2024-12-02 10:37:10,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:37:10,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:37:10,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:10,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:37:10,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:37:10,797 INFO L87 Difference]: Start difference. First operand 141 states and 173 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:37:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:10,918 INFO L93 Difference]: Finished difference Result 233 states and 281 transitions. [2024-12-02 10:37:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:37:10,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-12-02 10:37:10,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:10,919 INFO L225 Difference]: With dead ends: 233 [2024-12-02 10:37:10,919 INFO L226 Difference]: Without dead ends: 153 [2024-12-02 10:37:10,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:37:10,921 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 28 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:10,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 158 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:37:10,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-12-02 10:37:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2024-12-02 10:37:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 125 states have (on average 1.224) internal successors, (153), 127 states have internal predecessors, (153), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:37:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions. [2024-12-02 10:37:10,941 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 48 [2024-12-02 10:37:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:10,941 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 171 transitions. [2024-12-02 10:37:10,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:37:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions. [2024-12-02 10:37:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 10:37:10,942 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:10,942 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:10,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:37:10,943 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:10,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:10,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1000789861, now seen corresponding path program 4 times [2024-12-02 10:37:10,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239175769] [2024-12-02 10:37:10,943 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:37:10,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:10,955 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:37:10,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239175769] [2024-12-02 10:37:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239175769] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628594127] [2024-12-02 10:37:11,022 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 10:37:11,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:11,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:11,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:11,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:37:11,078 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 10:37:11,078 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:11,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:37:11,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:37:11,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:11,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628594127] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:37:11,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:37:11,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-12-02 10:37:11,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550092695] [2024-12-02 10:37:11,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:11,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:37:11,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:11,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:37:11,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:37:11,207 INFO L87 Difference]: Start difference. First operand 141 states and 171 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 10:37:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:11,401 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2024-12-02 10:37:11,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:37:11,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-12-02 10:37:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:11,403 INFO L225 Difference]: With dead ends: 165 [2024-12-02 10:37:11,403 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 10:37:11,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-12-02 10:37:11,404 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:11,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 180 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:37:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 10:37:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 135. [2024-12-02 10:37:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 121 states have internal predecessors, (144), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:37:11,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 162 transitions. [2024-12-02 10:37:11,421 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 162 transitions. Word has length 48 [2024-12-02 10:37:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:11,421 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 162 transitions. [2024-12-02 10:37:11,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 10:37:11,421 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 162 transitions. [2024-12-02 10:37:11,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:37:11,422 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:11,422 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:11,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:37:11,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:37:11,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:11,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1406522207, now seen corresponding path program 5 times [2024-12-02 10:37:11,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:11,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494516656] [2024-12-02 10:37:11,623 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:37:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:11,633 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-02 10:37:11,633 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:11,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:37:11,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494516656] [2024-12-02 10:37:11,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494516656] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:37:11,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233501436] [2024-12-02 10:37:11,675 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 10:37:11,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:11,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:11,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:11,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:37:11,730 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-12-02 10:37:11,730 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:37:11,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 10:37:11,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 10:37:11,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 10:37:11,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233501436] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:37:11,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:37:11,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-12-02 10:37:11,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050537196] [2024-12-02 10:37:11,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:37:11,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:37:11,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:37:11,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:37:11,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:37:11,815 INFO L87 Difference]: Start difference. First operand 135 states and 162 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 10:37:11,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:37:11,953 INFO L93 Difference]: Finished difference Result 223 states and 259 transitions. [2024-12-02 10:37:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 10:37:11,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-12-02 10:37:11,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:37:11,954 INFO L225 Difference]: With dead ends: 223 [2024-12-02 10:37:11,954 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 10:37:11,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:37:11,955 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:37:11,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 191 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:37:11,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 10:37:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2024-12-02 10:37:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.1290322580645162) internal successors, (105), 94 states have internal predecessors, (105), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 10:37:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2024-12-02 10:37:11,967 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 50 [2024-12-02 10:37:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:37:11,968 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2024-12-02 10:37:11,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 10:37:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2024-12-02 10:37:11,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 10:37:11,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:37:11,969 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:37:11,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:37:12,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:37:12,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:37:12,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:37:12,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1708116860, now seen corresponding path program 1 times [2024-12-02 10:37:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:37:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257994321] [2024-12-02 10:37:12,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:12,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:37:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 10:37:12,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905536267] [2024-12-02 10:37:12,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:37:12,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:37:12,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:37:12,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:37:12,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:37:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:37:12,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-12-02 10:37:12,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:37:12,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 10:37:12,848 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-12-02 10:37:12,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 18 [2024-12-02 10:37:12,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 10:37:13,198 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-12-02 10:37:13,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 18 [2024-12-02 10:37:13,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 10:37:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:37:13,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:37:30,763 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:37:41,159 WARN L286 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:37:54,264 WARN L286 SmtUtils]: Spent 9.03s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:38:21,091 WARN L286 SmtUtils]: Spent 8.73s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:38:48,781 WARN L286 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:39:16,623 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:39:22,381 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:40:55,108 WARN L286 SmtUtils]: Spent 49.60s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:40:55,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:40:55,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257994321] [2024-12-02 10:40:55,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 10:40:55,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905536267] [2024-12-02 10:40:55,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905536267] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:40:55,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:40:55,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-12-02 10:40:55,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188465620] [2024-12-02 10:40:55,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 10:40:55,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 10:40:55,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:40:55,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 10:40:55,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1341, Unknown=2, NotChecked=0, Total=1560 [2024-12-02 10:40:55,115 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 30 states, 30 states have (on average 1.6) internal successors, (48), 27 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 10:40:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:40:56,275 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2024-12-02 10:40:56,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-02 10:40:56,275 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.6) internal successors, (48), 27 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-12-02 10:40:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:40:56,276 INFO L225 Difference]: With dead ends: 112 [2024-12-02 10:40:56,276 INFO L226 Difference]: Without dead ends: 62 [2024-12-02 10:40:56,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=273, Invalid=1795, Unknown=2, NotChecked=0, Total=2070 [2024-12-02 10:40:56,277 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 73 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:40:56,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 336 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:40:56,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-12-02 10:40:56,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-12-02 10:40:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 10:40:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2024-12-02 10:40:56,281 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 58 [2024-12-02 10:40:56,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:40:56,281 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2024-12-02 10:40:56,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.6) internal successors, (48), 27 states have internal predecessors, (48), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 10:40:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2024-12-02 10:40:56,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 10:40:56,282 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:40:56,282 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:40:56,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 10:40:56,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:40:56,483 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:40:56,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:40:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash 515603769, now seen corresponding path program 6 times [2024-12-02 10:40:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:40:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427001901] [2024-12-02 10:40:56,483 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 10:40:56,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:40:56,521 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 10:40:56,521 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 10:40:56,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1711446656] [2024-12-02 10:40:56,522 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 10:40:56,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:40:56,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:40:56,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:40:56,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98595c1-74ed-494e-9444-2a1c1b5786d6/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:40:57,417 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 10:40:57,417 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 10:40:57,419 WARN L254 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-12-02 10:40:57,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:40:57,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 10:40:57,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-02 10:40:57,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:57,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:57,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:40:57,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2024-12-02 10:40:57,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:57,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:57,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:57,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:57,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 10:40:57,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-12-02 10:40:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:58,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:58,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:58,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:58,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:58,709 INFO L349 Elim1Store]: treesize reduction 142, result has 30.7 percent of original size [2024-12-02 10:40:58,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 88 treesize of output 136 [2024-12-02 10:40:59,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 130 [2024-12-02 10:40:59,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 10:40:59,183 INFO L349 Elim1Store]: treesize reduction 214, result has 0.5 percent of original size [2024-12-02 10:40:59,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 229 [2024-12-02 10:41:09,752 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:41:27,424 WARN L286 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:41:49,244 WARN L286 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:42:06,526 WARN L286 SmtUtils]: Spent 7.63s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:42:47,251 WARN L286 SmtUtils]: Spent 31.69s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:43:04,327 WARN L286 SmtUtils]: Spent 10.94s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:44:08,010 WARN L286 SmtUtils]: Spent 36.69s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:44:18,581 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:44:30,629 WARN L286 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:44:48,974 WARN L286 SmtUtils]: Spent 7.57s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:45:50,174 WARN L286 SmtUtils]: Spent 54.51s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:47:20,302 WARN L286 SmtUtils]: Spent 54.11s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:47:42,473 WARN L286 SmtUtils]: Spent 7.55s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:48:38,745 WARN L286 SmtUtils]: Spent 40.30s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:50:05,540 WARN L286 SmtUtils]: Spent 1.07m on a formula simplification that was a NOOP. DAG size: 108 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:50:22,816 WARN L286 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:50:30,928 WARN L286 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:50:59,381 WARN L286 SmtUtils]: Spent 9.91s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:52:02,971 WARN L286 SmtUtils]: Spent 38.90s on a formula simplification that was a NOOP. DAG size: 110 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 10:52:10,249 WARN L286 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 10:52:17,209 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)